NetBSD Problem Report #55707

From kardel@kardel.name  Fri Oct  9 08:11:14 2020
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Message-Id: <20201009081107.43578AAAC81A@pip.kardel.name>
Date: Fri,  9 Oct 2020 10:11:07 +0200 (CEST)
From: kardel@kardel.name
Reply-To: kardel@kardel.name
To: gnats-bugs@NetBSD.org
Subject: ZFS seems to trigger a lot of xcalls
X-Send-Pr-Version: 3.95

>Number:         55707
>Category:       kern
>Synopsis:       ZFS seems to trigger a lot of xcalls
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Oct 09 08:15:00 +0000 2020
>Originator:     Frank Kardel
>Release:        NetBSD 9.99.73
>Organization:

>Environment:


System: NetBSD pip 9.99.73 NetBSD 9.99.73 (PIPGEN) #0: Tue Oct 6 22:46:19 CEST 2020 kardel@pip:/src/NetBSD/cur/src/obj.amd64/sys/arch/amd64/compile/PIPGEN amd64
Architecture: x86_64
Machine: amd64
>Description:
	ZFS seems to trigger massive xcall work. How a single thread can can
	take more that 100% escapes me but could be a top/sampling bug.
	This is on a AMD Ryzen 9 X3950X (16 cores/32 threads).
	The workload is a single threaded bareos(bacula derivitive) base
	backup of ZFS file systems with ls4 compressen and deduplication.
	I wonder whether the xcall load could be reduced. It is clear that
	ZFS does a lot more kernel work (dedup, compression, raidz etc),
	but does it need so any xcalls?
	With that many xcalls I have seem CPU % to crep up above 1200%
	which seems to be a high workload.
top:
  PID   LID USERNAME PRI STATE      TIME   WCPU    CPU NAME      COMMAND
    0   210 root     127 xcall/10 286:11 337.06% 337.06% xcall/10  [system]
    0   216 root     127 xcall/11 269:04 315.33% 315.33% xcall/11  [system]
    0   164 root     127 xcall/13 257:14 235.69% 235.69% xcall/13  [system]
    0   120 root     127 xcall/6  308:27 203.71% 203.71% xcall/6   [system]
    0   198 root     127 xcall/8  291:53 193.16% 193.16% xcall/8   [system]
    0   384 root     127 xcall/17 240:15 155.71% 155.71% xcall/17  [system]
    0   414 root     127 xcall/22 194:37 129.35% 129.35% xcall/22  [system]
    0    96 root     127 RUN/2    301:26 114.45% 114.45% xcall/2   [system]
    0   304 root     127 xcall/25 170:53 88.62% 88.62% xcall/25  [system]
    0   204 root     127 xcall/9  290:37 88.57% 88.57% xcall/9   [system]
    0   222 root     127 xcall/12 263:09 80.81% 80.81% xcall/12  [system]
    0   390 root     127 xcall/18 226:49 75.98% 75.98% xcall/18  [system]
    0   396 root     127 xcall/19 204:52 63.62% 63.62% xcall/19  [system]
    0   114 root     127 xcall/5  311:53 61.04% 61.04% xcall/5   [system]
    0   402 root     127 xcall/20 226:08 56.98% 56.98% xcall/20  [system]
    0   170 root     127 xcall/14 243:54 55.91% 55.91% xcall/14  [system]
    0   298 root     127 xcall/24 176:27 54.20% 54.20% xcall/24  [system]
    0   310 root     127 xcall/26 172:31 52.54% 52.54% xcall/26  [system]
    0   328 root     127 xcall/29 140:24 52.39% 52.39% xcall/29  [system]
    0   408 root     127 xcall/21 198:44 49.37% 49.37% xcall/21  [system]
    0   102 root     127 xcall/3  313:49 46.97% 46.97% xcall/3   [system]
    0   292 root     127 xcall/23 201:36 42.19% 42.19% xcall/23  [system]
    0   182 root     127 xcall/16 238:50 39.26% 39.26% xcall/16  [system]
    0    25 root     127 xcall/1  260:37 33.98% 33.98% xcall/1   [system]
 9248 29770 root      32 CPU/1    309:46 29.88% 29.88% -         bareos-fd
    0   761 root      96 xclocv/1 246:05 24.80% 24.80% zfs       [system]
    0   176 root     127 xcall/15 235:02 23.05% 23.05% xcall/15  [system]
    0   322 root     127 xcall/28 152:48  8.54%  8.54% xcall/28  [system]
    0     7 root     127 xcall/0  224:40  7.71%  7.71% xcall/0   [system]
    0   334 root     127 xcall/30 103:55  7.42%  7.42% xcall/30  [system]
    0   340 root     127 xcall/31 106:06  5.08%  5.08% xcall/31  [system]
 9900   915 bareossd  84 poll/3    70:33  4.35%  4.35% -         bareos-sd
24461 24461 pgsql     85 poll/15    0:06  0.20%  0.20% -         postgres
    0   108 root     127 xcall/4  311:07  0.00%  0.00% xcall/4   [system]
    0   192 root     127 xcall/7  297:59  0.00%  0.00% xcall/7   [system]
    0   444 root     127 xcall/27 158:40  0.00%  0.00% xcall/27  [system]
    0   978 root     126 pgdaem/1   6:34  0.00%  0.00% pgdaemon  [system]
    0     9 root     125 vdrain/1   3:11  0.00%  0.00% vdrain    [system]
    0   979 root     124 syncer/2   2:59  0.00%  0.00% ioflush   [system]
    0   755 root     123 physio/1   2:12  0.00%  0.00% physiod   [system]
    0  2791 root     221 raidio/1   0:39  0.00%  0.00% raidio2   [system]
    0   763 root      96 zfscv/2    0:23  0.00%  0.00% zfs       [system]
 9370  9370 kdm       85 select/3   0:20  0.00%  0.00% -         kdm_greet
    0  2790 root     221 rfnode/1   0:18  0.00%  0.00% raid2     [system]
 8341  8341 root     191 pause/0    0:16  0.00%  0.00% -         ntpd

vmstat -e:

interrupt                                                 total  rate type
bus_dma bounces                                        76055857  1148 misc
bus_dma loads                                         159639431  2411 misc
bus_dma nbouncebufs                                         151     0 misc
pdpolicy reactanon                                      1461551    22 misc
pdpolicy reactexec                                        86592     1 misc
vmcmd kills                                               22146     0 misc
vmcmd extends                                              9683     0 misc
vmcmd calls                                              104605     1 misc
entropy notify                                                6     0 misc
entropy request                                               1     0 misc
entropy consolidate                                           3     0 misc
entropy immediate                                             3     0 misc
pserialize exclusive access                                6313     0 misc
vmem static_bt_inuse                                        200     0 misc
vmem static_bt_count                                        200     0 misc
TLB shootdown                                         185232513  2798 intr
cpu0 cprng_strong reseed                                      4     0 misc
cpu0 cprng_strong reseed                                      4     0 misc
softint net/0                                          40492228   611 misc
softint net block/0                                       81126     1 misc
softint bio/0                                           2221870    33 misc
softint bio block/0                                          42     0 misc
softint clk/0                                           6643944   100 misc
softint clk block/0                                       19602     0 misc
softint ser/0                                           3528946    53 misc
callout late/0                                               32     0 misc
callout wait/0                                               35     0 misc
crosscall unicast                                          1010     0 misc
crosscall broadcast                                   609278581  9203 misc
nfs timer                                                    10     0 misc
nfs timer start                                               9     0 misc
nfs timer stop                                                9     0 misc
cpu0 timer                                              6619323    99 intr
cpu0 AST IPI                                          637001317  9622 misc
cpu0 generic IPI                                       37331730   563 misc
cpu0 xcall IPI                                            75133     1 misc
cpu0 kpreempt IPI                                       1154985    17 misc
cpu1 cprng_strong reseed                                      4     0 misc
cpu1 cprng_strong reseed                                      3     0 misc
softint net/1                                            349428     5 misc
softint net block/1                                          14     0 misc
softint bio/1                                          73326994  1107 misc
softint bio block/1                                       32255     0 misc
softint clk/1                                           3213706    48 misc
softint clk block/1                                          51     0 misc
softint ser/1                                           4751098    71 misc
softint ser block/1                                           1     0 misc
callout late/1                                               11     0 misc
callout wait/1                                               92     0 misc
cpu1 timer                                              6619113    99 misc
cpu1 AST IPI                                          626040633  9457 misc
cpu1 xcall IPI                                            87675     1 misc
cpu1 kpreempt IPI                                       1370822    20 misc
cpu2 cprng_strong reseed                                      3     0 misc
cpu2 cprng_strong reseed                                      2     0 misc
softint net/2                                            193838     2 misc
softint net block/2                                           2     0 misc
softint bio/2                                                22     0 misc
softint clk/2                                           2887556    43 misc
softint ser/2                                              9648     0 misc
cpu2 timer                                              6619600    99 misc
cpu2 AST IPI                                          625282278  9445 misc
cpu2 xcall IPI                                            91278     1 misc
cpu2 kpreempt IPI                                        503810     7 misc
cpu3 cprng_strong reseed                                      3     0 misc
cpu3 cprng_strong reseed                                      2     0 misc
softint net/3                                            105424     1 misc
softint bio/3                                                 6     0 misc
softint clk/3                                           2318488    35 misc
softint ser/3                                              9648     0 misc
cpu3 timer                                              6619594    99 misc
cpu3 AST IPI                                          621167253  9383 misc
cpu3 xcall IPI                                            97750     1 misc
cpu3 kpreempt IPI                                        211776     3 misc
cpu4 cprng_strong reseed                                      3     0 misc
cpu4 cprng_strong reseed                                      2     0 misc
softint net/4                                            126084     1 misc
softint bio/4                                                 4     0 misc
softint clk/4                                           1826916    27 misc
softint ser/4                                              9648     0 misc
cpu4 timer                                              6619591    99 misc
cpu4 AST IPI                                          618809723  9347 misc
cpu4 xcall IPI                                            98803     1 misc
cpu4 kpreempt IPI                                        148634     2 misc
cpu5 cprng_strong reseed                                      3     0 misc
cpu5 cprng_strong reseed                                      2     0 misc
softint net/5                                             91489     1 misc
softint clk/5                                           1450466    21 misc
softint ser/5                                              9648     0 misc
cpu5 timer                                              6619567    99 misc
cpu5 AST IPI                                          617105876  9322 misc
cpu5 xcall IPI                                            99623     1 misc
cpu5 kpreempt IPI                                        117579     1 misc
cpu6 cprng_strong reseed                                      2     0 misc
cpu6 cprng_strong reseed                                      2     0 misc
softint net/6                                             91482     1 misc
softint bio/6                                                 4     0 misc
softint clk/6                                           1235827    18 misc
softint ser/6                                              9648     0 misc
cpu6 timer                                              6619599    99 misc
cpu6 AST IPI                                          616226396  9308 misc
cpu6 xcall IPI                                            99597     1 misc
cpu6 kpreempt IPI                                        128607     1 misc
cpu7 cprng_strong reseed                                      2     0 misc
cpu7 cprng_strong reseed                                      2     0 misc
softint net/7                                             91467     1 misc
softint clk/7                                           1144559    17 misc
softint ser/7                                              9648     0 misc
softint ser block/7                                           1     0 misc
cpu7 timer                                              6619579    99 misc
cpu7 AST IPI                                          616026692  9305 misc
cpu7 xcall IPI                                            99445     1 misc
cpu7 kpreempt IPI                                        107853     1 misc
cpu8 cprng_strong reseed                                      2     0 misc
cpu8 cprng_strong reseed                                      2     0 misc
softint net/8                                             91496     1 misc
softint net block/8                                           1     0 misc
softint clk/8                                           1271321    19 misc
softint ser/8                                              9648     0 misc
callout wait/8                                                1     0 misc
cpu8 timer                                              6619598    99 misc
cpu8 AST IPI                                          615761683  9301 misc
cpu8 xcall IPI                                            98898     1 misc
cpu8 kpreempt IPI                                        125666     1 misc
cpu9 cprng_strong reseed                                      2     0 misc
cpu9 cprng_strong reseed                                      2     0 misc
softint net/9                                             91468     1 misc
softint clk/9                                           1141547    17 misc
softint ser/9                                              9648     0 misc
cpu9 timer                                              6619601    99 misc
cpu9 AST IPI                                          614915934  9289 misc
cpu9 xcall IPI                                            99506     1 misc
cpu9 kpreempt IPI                                        120030     1 misc
cpu10 cprng_strong reseed                                     2     0 misc
cpu10 cprng_strong reseed                                     2     0 misc
softint net/10                                            91491     1 misc
softint clk/10                                          1019351    15 misc
softint ser/10                                             9648     0 misc
softint ser block/10                                          1     0 misc
cpu10 timer                                             6619585    99 misc
cpu10 AST IPI                                         614458607  9282 misc
cpu10 xcall IPI                                           99821     1 misc
cpu10 kpreempt IPI                                       105079     1 misc
cpu11 cprng_strong reseed                                     2     0 misc
cpu11 cprng_strong reseed                                     2     0 misc
softint net/11                                            91475     1 misc
softint clk/11                                          1068134    16 misc
softint ser/11                                             9648     0 misc
cpu11 timer                                             6619598    99 misc
cpu11 AST IPI                                         614540535  9283 misc
cpu11 xcall IPI                                           99234     1 misc
cpu11 kpreempt IPI                                       102304     1 misc
cpu12 cprng_strong reseed                                     2     0 misc
cpu12 cprng_strong reseed                                     2     0 misc
softint net/12                                            91473     1 misc
softint clk/12                                          1205121    18 misc
softint ser/12                                             9648     0 misc
cpu12 timer                                             6619596    99 misc
cpu12 AST IPI                                         614820677  9287 misc
cpu12 xcall IPI                                           98779     1 misc
cpu12 kpreempt IPI                                       119165     1 misc
cpu13 cprng_strong reseed                                     2     0 misc
cpu13 cprng_strong reseed                                     2     0 misc
softint net/13                                            91476     1 misc
softint clk/13                                          1344225    20 misc
softint ser/13                                             9648     0 misc
cpu13 timer                                             6619599    99 misc
cpu13 AST IPI                                         615010259  9290 misc
cpu13 xcall IPI                                           99011     1 misc
cpu13 kpreempt IPI                                       117963     1 misc
cpu14 cprng_strong reseed                                     2     0 misc
cpu14 cprng_strong reseed                                     2     0 misc
softint net/14                                            91507     1 misc
softint net block/14                                          3     0 misc
softint clk/14                                          2674465    40 misc
softint ser/14                                             9648     0 misc
callout wait/14                                               1     0 misc
cpu14 timer                                             6619601    99 misc
cpu14 AST IPI                                         617522880  9328 misc
cpu14 xcall IPI                                           98392     1 misc
cpu14 kpreempt IPI                                       106741     1 misc
cpu15 cprng_strong reseed                                     2     0 misc
cpu15 cprng_strong reseed                                     2     0 misc
softint net/15                                            91559     1 misc
softint net block/15                                          7     0 misc
softint clk/15                                          4036380    60 misc
softint clk block/15                                          1     0 misc
softint ser/15                                             9648     0 misc
softint ser block/15                                          1     0 misc
callout wait/15                                               4     0 misc
cpu15 timer                                             6619584    99 misc
cpu15 AST IPI                                         625956050  9455 misc
cpu15 xcall IPI                                           88385     1 misc
cpu15 kpreempt IPI                                       169277     2 misc
cpu16 cprng_strong reseed                                     2     0 misc
cpu16 cprng_strong reseed                                     2     0 misc
softint net/16                                            91462     1 misc
softint clk/16                                           533008     8 misc
softint ser/16                                             9648     0 misc
cpu16 timer                                             6619582    99 misc
cpu16 AST IPI                                         610648348  9224 misc
cpu16 xcall IPI                                          100268     1 misc
cpu16 kpreempt IPI                                         3601     0 misc
cpu17 cprng_strong reseed                                     2     0 misc
cpu17 cprng_strong reseed                                     2     0 misc
softint net/17                                            91463     1 misc
softint clk/17                                           395148     5 misc
softint ser/17                                             9648     0 misc
cpu17 timer                                             6619582    99 misc
cpu17 AST IPI                                         610524154  9222 misc
cpu17 xcall IPI                                          100285     1 misc
cpu17 kpreempt IPI                                         4052     0 misc
cpu18 cprng_strong reseed                                     2     0 misc
cpu18 cprng_strong reseed                                     2     0 misc
softint net/18                                            91463     1 misc
softint clk/18                                           191111     2 misc
softint ser/18                                             9648     0 misc
cpu18 timer                                             6619601    99 misc
cpu18 AST IPI                                         610323258  9219 misc
cpu18 xcall IPI                                          100544     1 misc
cpu18 kpreempt IPI                                          782     0 misc
cpu19 cprng_strong reseed                                     2     0 misc
cpu19 cprng_strong reseed                                     2     0 misc
softint net/19                                            91462     1 misc
softint clk/19                                           197297     2 misc
softint ser/19                                             9648     0 misc
cpu19 timer                                             6619601    99 misc
cpu19 AST IPI                                         610303077  9219 misc
cpu19 xcall IPI                                          100550     1 misc
cpu19 kpreempt IPI                                          430     0 misc
cpu20 cprng_strong reseed                                     1     0 misc
cpu20 cprng_strong reseed                                     2     0 misc
softint net/20                                            91463     1 misc
softint clk/20                                            71946     1 misc
softint ser/20                                             9648     0 misc
callout wait/20                                               1     0 misc
cpu20 timer                                             6619601    99 misc
cpu20 AST IPI                                         609850761  9212 misc
cpu20 xcall IPI                                          100592     1 misc
cpu20 kpreempt IPI                                          217     0 misc
cpu21 cprng_strong reseed                                     2     0 misc
cpu21 cprng_strong reseed                                     2     0 misc
softint net/21                                            91467     1 misc
softint net block/21                                          1     0 misc
softint clk/21                                            80410     1 misc
softint ser/21                                             9648     0 misc
cpu21 timer                                             6619600    99 misc
cpu21 AST IPI                                         609847715  9212 misc
cpu21 xcall IPI                                          100686     1 misc
cpu21 kpreempt IPI                                          319     0 misc
cpu22 cprng_strong reseed                                     2     0 misc
softint net/22                                            91463     1 misc
softint clk/22                                            83375     1 misc
softint ser/22                                             9648     0 misc
cpu22 timer                                             6619600    99 misc
cpu22 AST IPI                                         609793064  9211 misc
cpu22 xcall IPI                                          100658     1 misc
cpu22 kpreempt IPI                                          136     0 misc
cpu23 cprng_strong reseed                                     1     0 misc
cpu23 cprng_strong reseed                                     2     0 misc
softint net/23                                            91463     1 misc
softint clk/23                                            51690     0 misc
softint ser/23                                             9648     0 misc
cpu23 timer                                             6619600    99 misc
cpu23 AST IPI                                         609684437  9210 misc
cpu23 xcall IPI                                          100662     1 misc
cpu23 kpreempt IPI                                          181     0 misc
cpu24 cprng_strong reseed                                     1     0 misc
cpu24 cprng_strong reseed                                     2     0 misc
softint net/24                                            91463     1 misc
softint clk/24                                            81201     1 misc
softint ser/24                                             9648     0 misc
softint ser block/24                                          1     0 misc
cpu24 timer                                             6619600    99 misc
cpu24 AST IPI                                         609699934  9210 misc
cpu24 xcall IPI                                          100594     1 misc
cpu24 kpreempt IPI                                          520     0 misc
cpu25 cprng_strong reseed                                     1     0 misc
cpu25 cprng_strong reseed                                     2     0 misc
softint net/25                                            91463     1 misc
softint clk/25                                            70230     1 misc
softint ser/25                                             9648     0 misc
softint ser block/25                                          1     0 misc
cpu25 timer                                             6619595    99 misc
cpu25 AST IPI                                         609653962  9209 misc
cpu25 xcall IPI                                          100660     1 misc
cpu25 kpreempt IPI                                           82     0 misc
cpu26 cprng_strong reseed                                     1     0 misc
cpu26 cprng_strong reseed                                     2     0 misc
softint net/26                                            91463     1 misc
softint clk/26                                            54454     0 misc
softint ser/26                                             9648     0 misc
cpu26 timer                                             6619600    99 misc
cpu26 AST IPI                                         609614354  9208 misc
cpu26 xcall IPI                                          100606     1 misc
cpu26 kpreempt IPI                                          105     0 misc
cpu27 cprng_strong reseed                                     1     0 misc
cpu27 cprng_strong reseed                                     2     0 misc
softint net/27                                            91463     1 misc
softint clk/27                                           102875     1 misc
softint ser/27                                             9648     0 misc
cpu27 timer                                             6619600    99 misc
cpu27 AST IPI                                         609650842  9209 misc
cpu27 xcall IPI                                          100614     1 misc
cpu27 kpreempt IPI                                          282     0 misc
cpu28 cprng_strong reseed                                     1     0 misc
cpu28 cprng_strong reseed                                     2     0 misc
softint net/28                                            91463     1 misc
softint clk/28                                            95412     1 misc
softint ser/28                                             9648     0 misc
softint ser block/28                                          1     0 misc
cpu28 timer                                             6619600    99 misc
cpu28 AST IPI                                         609626733  9209 misc
cpu28 xcall IPI                                          100660     1 misc
cpu28 kpreempt IPI                                          267     0 misc
cpu29 cprng_strong reseed                                     2     0 misc
cpu29 cprng_strong reseed                                     2     0 misc
softint net/29                                            91467     1 misc
softint clk/29                                           218743     3 misc
softint ser/29                                             9648     0 misc
cpu29 timer                                             6619600    99 misc
cpu29 AST IPI                                         609824167  9212 misc
cpu29 xcall IPI                                          100440     1 misc
cpu29 kpreempt IPI                                          243     0 misc
cpu30 cprng_strong reseed                                     1     0 misc
cpu30 cprng_strong reseed                                     2     0 misc
softint net/30                                            91466     1 misc
softint clk/30                                          1108859    16 misc
softint ser/30                                             9648     0 misc
softint ser block/30                                          1     0 misc
cpu30 timer                                             6619595    99 misc
cpu30 AST IPI                                         610991451  9229 misc
cpu30 xcall IPI                                          100249     1 misc
cpu30 kpreempt IPI                                          111     0 misc
cpu31 cprng_strong reseed                                     2     0 misc
cpu31 cprng_strong reseed                                     2     0 misc
softint net/31                                            91464     1 misc
softint clk/31                                          2861956    43 misc
softint ser/31                                             9648     0 misc
callout wait/31                                               1     0 misc
cpu31 timer                                             6619589    99 misc
cpu31 AST IPI                                         614368932  9280 misc
cpu31 xcall IPI                                           95012     1 misc
cpu31 kpreempt IPI                                          334     0 misc
ioapic0 pin 1                                                 6     0 intr
msix0 vec 0                                                  38     0 intr
msix0 vec 1                                                  83     0 intr
msix0 vec 2                                                 653     0 intr
msix0 vec 3                                                  16     0 intr
msix0 vec 5                                                   4     0 intr
msix0 vec 7                                                   4     0 intr
msix1 vec 1                                                  30     0 intr
msix1 vec 2                                                  56     0 intr
msix1 vec 3                                                   6     0 intr
msix1 vec 4                                                   6     0 intr
ioapic1 pin 6                                               161     0 intr
ioapic1 pin 4                                            717347    10 intr
ioapic1 pin 5                                             62320     0 intr
ioapic1 pin 7                                            397656     6 intr
msix2 vec 0                                               94877     1 intr
msix2 vec 1                                               83604     1 intr
msix2 vec 2                                                   1     0 intr
msix3 vec 0                                              141155     2 intr
msix3 vec 1                                               13478     0 intr
msix3 vec 2                                               13612     0 intr
msix3 vec 3                                               33366     0 intr
msix3 vec 4                                                   1     0 intr
msi4 vec 0                                                   52     0 intr
msix5 vec 0                                                  35     0 intr
msi6 vec 0                                              3877494    58 intr
msi7 vec 0                                              8539625   129 intr
msix9 vec 0                                            67827989  1024 intr
msix10 vec 0                                                  1     0 intr
acpicpu0 C1 (HALT)                                    699740559 10570 misc
acpicpu0 P0 (3700 MHz)                                      352     0 misc
acpicpu0 P1 (2800 MHz)                                      331     0 misc
acpicpu0 P2 (2200 MHz)                                      257     0 misc
acpicpu1 C1 (HALT)                                    683204576 10320 misc
acpicpu1 P0 (3700 MHz)                                      352     0 misc
acpicpu1 P1 (2800 MHz)                                      331     0 misc
acpicpu1 P2 (2200 MHz)                                      257     0 misc
acpicpu2 C1 (HALT)                                    697384260 10534 misc
acpicpu2 P0 (3700 MHz)                                      352     0 misc
acpicpu2 P1 (2800 MHz)                                      331     0 misc
acpicpu2 P2 (2200 MHz)                                      257     0 misc
acpicpu3 C1 (HALT)                                    703514504 10627 misc
acpicpu3 P0 (3700 MHz)                                      352     0 misc
acpicpu3 P1 (2800 MHz)                                      331     0 misc
acpicpu3 P2 (2200 MHz)                                      257     0 misc
acpicpu4 C1 (HALT)                                    718806902 10858 misc
acpicpu4 P0 (3700 MHz)                                      352     0 misc
acpicpu4 P1 (2800 MHz)                                      331     0 misc
acpicpu4 P2 (2200 MHz)                                      257     0 misc
acpicpu5 C1 (HALT)                                    727584762 10991 misc
acpicpu5 P0 (3700 MHz)                                      352     0 misc
acpicpu5 P1 (2800 MHz)                                      331     0 misc
acpicpu5 P2 (2200 MHz)                                      257     0 misc
acpicpu6 C1 (HALT)                                    730667330 11037 misc
acpicpu6 P0 (3700 MHz)                                      352     0 misc
acpicpu6 P1 (2800 MHz)                                      331     0 misc
acpicpu6 P2 (2200 MHz)                                      257     0 misc
acpicpu7 C1 (HALT)                                    724562504 10945 misc
acpicpu7 P0 (3700 MHz)                                      352     0 misc
acpicpu7 P1 (2800 MHz)                                      331     0 misc
acpicpu7 P2 (2200 MHz)                                      257     0 misc
acpicpu8 C1 (HALT)                                    725187463 10954 misc
acpicpu8 P0 (3700 MHz)                                      352     0 misc
acpicpu8 P1 (2800 MHz)                                      331     0 misc
acpicpu8 P2 (2200 MHz)                                      257     0 misc
acpicpu9 C1 (HALT)                                    732968857 11072 misc
acpicpu9 P0 (3700 MHz)                                      352     0 misc
acpicpu9 P1 (2800 MHz)                                      331     0 misc
acpicpu9 P2 (2200 MHz)                                      257     0 misc
acpicpu10 C1 (HALT)                                   729234552 11015 misc
acpicpu10 P0 (3700 MHz)                                     352     0 misc
acpicpu10 P1 (2800 MHz)                                     331     0 misc
acpicpu10 P2 (2200 MHz)                                     257     0 misc
acpicpu11 C1 (HALT)                                   727013297 10982 misc
acpicpu11 P0 (3700 MHz)                                     352     0 misc
acpicpu11 P1 (2800 MHz)                                     331     0 misc
acpicpu11 P2 (2200 MHz)                                     257     0 misc
acpicpu12 C1 (HALT)                                   725551288 10960 misc
acpicpu12 P0 (3700 MHz)                                     352     0 misc
acpicpu12 P1 (2800 MHz)                                     331     0 misc
acpicpu12 P2 (2200 MHz)                                     257     0 misc
acpicpu13 C1 (HALT)                                   729637309 11022 misc
acpicpu13 P0 (3700 MHz)                                     352     0 misc
acpicpu13 P1 (2800 MHz)                                     331     0 misc
acpicpu13 P2 (2200 MHz)                                     257     0 misc
acpicpu14 C1 (HALT)                                   725378000 10957 misc
acpicpu14 P0 (3700 MHz)                                     352     0 misc
acpicpu14 P1 (2800 MHz)                                     331     0 misc
acpicpu14 P2 (2200 MHz)                                     257     0 misc
acpicpu15 C1 (HALT)                                   714850333 10798 misc
acpicpu15 P0 (3700 MHz)                                     352     0 misc
acpicpu15 P1 (2800 MHz)                                     331     0 misc
acpicpu15 P2 (2200 MHz)                                     257     0 misc
acpicpu16 C1 (HALT)                                   780913140 11796 misc
acpicpu16 P0 (3700 MHz)                                     352     0 misc
acpicpu16 P1 (2800 MHz)                                     331     0 misc
acpicpu16 P2 (2200 MHz)                                     257     0 misc
acpicpu17 C1 (HALT)                                   781392945 11803 misc
acpicpu17 P0 (3700 MHz)                                     352     0 misc
acpicpu17 P1 (2800 MHz)                                     331     0 misc
acpicpu17 P2 (2200 MHz)                                     257     0 misc
acpicpu18 C1 (HALT)                                   782578306 11821 misc
acpicpu18 P0 (3700 MHz)                                     352     0 misc
acpicpu18 P1 (2800 MHz)                                     331     0 misc
acpicpu18 P2 (2200 MHz)                                     257     0 misc
acpicpu19 C1 (HALT)                                   784627138 11852 misc
acpicpu19 P0 (3700 MHz)                                     352     0 misc
acpicpu19 P1 (2800 MHz)                                     331     0 misc
acpicpu19 P2 (2200 MHz)                                     257     0 misc
acpicpu20 C1 (HALT)                                   781765018 11809 misc
acpicpu20 P0 (3700 MHz)                                     352     0 misc
acpicpu20 P1 (2800 MHz)                                     331     0 misc
acpicpu20 P2 (2200 MHz)                                     257     0 misc
acpicpu21 C1 (HALT)                                   784666574 11853 misc
acpicpu21 P0 (3700 MHz)                                     352     0 misc
acpicpu21 P1 (2800 MHz)                                     331     0 misc
acpicpu21 P2 (2200 MHz)                                     257     0 misc
acpicpu22 C1 (HALT)                                   785147476 11860 misc
acpicpu22 P0 (3700 MHz)                                     352     0 misc
acpicpu22 P1 (2800 MHz)                                     331     0 misc
acpicpu22 P2 (2200 MHz)                                     257     0 misc
acpicpu23 C1 (HALT)                                   783972537 11842 misc
acpicpu23 P0 (3700 MHz)                                     352     0 misc
acpicpu23 P1 (2800 MHz)                                     331     0 misc
acpicpu23 P2 (2200 MHz)                                     257     0 misc
acpicpu24 C1 (HALT)                                   786051926 11874 misc
acpicpu24 P0 (3700 MHz)                                     352     0 misc
acpicpu24 P1 (2800 MHz)                                     331     0 misc
acpicpu24 P2 (2200 MHz)                                     257     0 misc
acpicpu25 C1 (HALT)                                   786580436 11882 misc
acpicpu25 P0 (3700 MHz)                                     352     0 misc
acpicpu25 P1 (2800 MHz)                                     331     0 misc
acpicpu25 P2 (2200 MHz)                                     257     0 misc
acpicpu26 C1 (HALT)                                   785940984 11872 misc
acpicpu26 P0 (3700 MHz)                                     352     0 misc
acpicpu26 P1 (2800 MHz)                                     331     0 misc
acpicpu26 P2 (2200 MHz)                                     257     0 misc
acpicpu27 C1 (HALT)                                   786748593 11884 misc
acpicpu27 P0 (3700 MHz)                                     352     0 misc
acpicpu27 P1 (2800 MHz)                                     331     0 misc
acpicpu27 P2 (2200 MHz)                                     257     0 misc
acpicpu28 C1 (HALT)                                   787221354 11891 misc
acpicpu28 P0 (3700 MHz)                                     352     0 misc
acpicpu28 P1 (2800 MHz)                                     331     0 misc
acpicpu28 P2 (2200 MHz)                                     257     0 misc
acpicpu29 C1 (HALT)                                   787905293 11902 misc
acpicpu29 P0 (3700 MHz)                                     352     0 misc
acpicpu29 P1 (2800 MHz)                                     331     0 misc
acpicpu29 P2 (2200 MHz)                                     257     0 misc
acpicpu30 C1 (HALT)                                   791359974 11954 misc
acpicpu30 P0 (3700 MHz)                                     352     0 misc
acpicpu30 P1 (2800 MHz)                                     331     0 misc
acpicpu30 P2 (2200 MHz)                                     257     0 misc
acpicpu31 C1 (HALT)                                   788347794 11908 misc
acpicpu31 P0 (3700 MHz)                                     352     0 misc
acpicpu31 P1 (2800 MHz)                                     331     0 misc
acpicpu31 P2 (2200 MHz)                                     257     0 misc
cpu0 cprng_fast reseed                                        3     0 misc
cpu1 cprng_fast reseed                                        3     0 misc
cpu2 cprng_fast reseed                                        2     0 misc
cpu3 cprng_fast reseed                                        2     0 misc
cpu4 cprng_fast reseed                                        2     0 misc
cpu5 cprng_fast reseed                                        2     0 misc
cpu6 cprng_fast reseed                                        2     0 misc
cpu7 cprng_fast reseed                                        2     0 misc
cpu8 cprng_fast reseed                                        2     0 misc
cpu9 cprng_fast reseed                                        2     0 misc
cpu10 cprng_fast reseed                                       2     0 misc
cpu11 cprng_fast reseed                                       2     0 misc
cpu12 cprng_fast reseed                                       2     0 misc
cpu13 cprng_fast reseed                                       2     0 misc
cpu14 cprng_fast reseed                                       2     0 misc
cpu15 cprng_fast reseed                                       2     0 misc
cpu16 cprng_fast reseed                                       2     0 misc
cpu17 cprng_fast reseed                                       2     0 misc
cpu18 cprng_fast reseed                                       2     0 misc
cpu19 cprng_fast reseed                                       2     0 misc
cpu20 cprng_fast reseed                                       2     0 misc
cpu21 cprng_fast reseed                                       2     0 misc
cpu22 cprng_fast reseed                                       2     0 misc
cpu23 cprng_fast reseed                                       2     0 misc
cpu24 cprng_fast reseed                                       2     0 misc
cpu25 cprng_fast reseed                                       2     0 misc
cpu26 cprng_fast reseed                                       2     0 misc
cpu27 cprng_fast reseed                                       2     0 misc
cpu28 cprng_fast reseed                                       2     0 misc
cpu29 cprng_fast reseed                                       2     0 misc
cpu30 cprng_fast reseed                                       2     0 misc
cpu31 cprng_fast reseed                                       2     0 misc
kpreempt defer: critical section                        1047682    15 misc
kpreempt defer: kernel_lock                               19898     0 misc
kpreempt immediate                                      9176145   138 misc
cpu0 entropy softint                                     131588     1 misc
cpu1 entropy softint                                    4966079    75 misc
msi12 vec 0                                                 301     0 intr
wapbl fsid 0xa822/0x78b commit                             6625     0 misc
wapbl fsid 0xa822/0x78b journal write total              312230     4 misc
wapbl fsid 0xa822/0x78b journal write finished async      16890     0 misc
wapbl fsid 0xa822/0x78b metadata async write             193102     2 misc
wapbl fsid 0xa822/0x78b cache flush                       13250     0 misc
wapbl fsid 0xa821/0x78b commit                               99     0 misc
wapbl fsid 0xa821/0x78b journal write total               51189     0 misc
wapbl fsid 0xa821/0x78b journal write finished async       1384     0 misc
wapbl fsid 0xa821/0x78b metadata async write              33412     0 misc
wapbl fsid 0xa821/0x78b cache flush                         198     0 misc
wapbl fsid 0xa806/0x78b commit                               19     0 misc
wapbl fsid 0xa806/0x78b journal write total                9090     0 misc
wapbl fsid 0xa806/0x78b journal write finished async         67     0 misc
wapbl fsid 0xa806/0x78b metadata async write               5937     0 misc
wapbl fsid 0xa806/0x78b cache flush                          38     0 misc


>How-To-Repeat:
	Use ZFS with dedup, lz4 compression on a 3 vdev raidz1 pool and
	run a plain bareos base backup for some TBytes.

>Fix:
	?

>Unformatted:

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