NetBSD Problem Report #53154

From www@NetBSD.org  Wed Apr  4 00:43:16 2018
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Date: Wed,  4 Apr 2018 00:43:14 +0000 (UTC)
From: venture37@geeklan.co.uk
Reply-To: venture37@geeklan.co.uk
To: gnats-bugs@NetBSD.org
Subject: ruby 2.5 pegs CPU on DragonFly BSD
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>Number:         53154
>Category:       pkg
>Synopsis:       ruby 2.5 pegs CPU on DragonFly BSD
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Apr 04 00:45:00 +0000 2018
>Last-Modified:  Sun Sep 16 14:45:00 +0000 2018
>Originator:     Sevan Janiyan
>Release:        
>Organization:
>Environment:
DragonFly v5.3.0.28.g29df6-DEVELOPMENT #331: Sun Apr  1 15:41:38 PDT 2018
>Description:
I'm trying to bulkbuild the entire pkgsrc tree on DragonFly BSD. I keep on seeing the ruby25 binary wedging and chewing up CPU.

   PID USERNAME     NICE  SIZE    RES    STATE   C   TIME   CTIME    CPU COMMAND
971573 pbulk          0    34M    28M     CPU3   3  41:19   41:19 98.29% ruby25


>How-To-Repeat:
Try to build ruby25-concurrent-ruby or ruby25-thread_safe or ruby25-native-package-installer for example
>Fix:

>Audit-Trail:
From: Takahiro Kambe <taca@NetBSD.org>
To: gnats-bugs@NetBSD.org, venture37@geeklan.co.uk
Cc: taca@NetBSD.org
Subject: Re: pkg/53154: ruby 2.5 pegs CPU on DragonFly BSD
Date: Sun, 16 Sep 2018 23:43:08 +0900 (JST)

 In message <20180404004500.9D7827A155@mollari.NetBSD.org>
 	on Wed,  4 Apr 2018 00:45:00 +0000 (UTC),
 	venture37@geeklan.co.uk wrote:
 >>Number:         53154
 >>Category:       pkg
 >>Synopsis:       ruby 2.5 pegs CPU on DragonFly BSD
 >>Confidential:   no
 >>Severity:       serious
 >>Priority:       medium
 >>Responsible:    pkg-manager
 >>State:          open
 >>Class:          sw-bug
 >>Submitter-Id:   net
 >>Arrival-Date:   Wed Apr 04 00:45:00 +0000 2018
 >>Originator:     Sevan Janiyan
 >>Release:        
 >>Organization:
 >>Environment:
 > DragonFly v5.3.0.28.g29df6-DEVELOPMENT #331: Sun Apr  1 15:41:38 PDT 2018
 >>Description:
 > I'm trying to bulkbuild the entire pkgsrc tree on DragonFly BSD. I keep on seeing the ruby25 binary wedging and chewing up CPU.
 > 
 >    PID USERNAME     NICE  SIZE    RES    STATE   C   TIME   CTIME    CPU COMMAND
 > 971573 pbulk          0    34M    28M     CPU3   3  41:19   41:19 98.29% ruby25
 > 
 > 
 >>How-To-Repeat:
 > Try to build ruby25-concurrent-ruby or ruby25-thread_safe or ruby25-native-package-installer for example
 I have reproduced on below:

 DragonFly v5.3.0.18526.gd0cad-DEVELOPMENT #0: Mon Sep 17 20:41:06 JST 2018

 I have no idea but a few point.

 # bmake install
 => Bootstrap dependency digest>=20010302: found digest-20160304
 ===> Skipping vulnerability checks.
 WARNING: No /usr/pkg/pkgdb/pkg-vulnerabilities file found.
 WARNING: To fix run: `/usr/pkg/sbin/pkg_admin -K /usr/pkg/pkgdb fetch-pkg-vulnerabilities'.
 ===> Installing for ruby25-concurrent-ruby-1.0.5
 => Generating pre-install file lists
 => Installing gem into installation root
 Successfully installed concurrent-ruby-1.0.5
 Parsing documentation for concurrent-ruby-1.0.5

 So, somethine wrong on generating rdoc files phase.

 And with ktrace(1),

 # ktrace -di bmake stage-install &
 [1] 191256
 dragonfly# => Bootstrap dependency digest>=20010302: found digest-20160304
 ===> Skipping vulnerability checks.
 WARNING: No /usr/pkg/pkgdb/pkg-vulnerabilities file found.
 WARNING: To fix run: `/usr/pkg/sbin/pkg_admin -K /usr/pkg/pkgdb fetch-pkg-vulnerabilities'.
 ===> Installing for ruby25-concurrent-ruby-1.0.5
 => Generating pre-install file lists
 => Installing gem into installation root
 Successfully installed concurrent-ruby-1.0.5
 Parsing documentation for concurrent-ruby-1.0.5
 kdump | tail
 191428:1    ruby25   RET   sigprocmask 0
 191428:1    ruby25   CALL  umtx_wakeup(0x80044eb00,0)
 191428:1    ruby25   RET   umtx_wakeup 0
 191428:1    ruby25   CALL  mmap(0,0x80000,0x3<PROT_READ|PROT_WRITE>,0x1402<MAP_PRIVATE|MAP_STACK|MAP_ANON>,0xffffffff,0,0)
 191428:1    ruby25   RET   mmap 4198400/0x401000
 191428:1    ruby25   CALL  umtx_wakeup(0x80044eb00,0)
 191428:1    ruby25   RET   umtx_wakeup 0
 191428:1    ruby25   CALL  mprotect(0x800401000,0x1000,0<PROT_NONE>)
 191428:1    ruby25   RET   mprotect 0
 191428:1    ruby25   PSIG  SIGSEGV caught handler=0x8005ac5d0 mask=0x0 code=0x2

 ruby25 caught SIGSEGV??


 -- 
 Takahiro Kambe <taca@NetBSD.org>

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