NetBSD Problem Report #52138

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Date: Mon,  3 Apr 2017 23:03:36 +0000 (UTC)
From: venture37@geeklan.co.uk
Reply-To: venture37@geeklan.co.uk
To: gnats-bugs@NetBSD.org
Subject: Change for the benefit of DTrace on MP ARM breaks it on UP ARM
X-Send-Pr-Version: www-1.0

>Number:         52138
>Category:       port-hpcarm
>Synopsis:       Change for the benefit of DTrace on MP ARM breaks it on UP ARM
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    skrll
>State:          closed
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Apr 03 23:05:00 +0000 2017
>Closed-Date:    Tue Apr 04 11:51:01 +0000 2017
>Last-Modified:  Tue Apr 04 11:51:01 +0000 2017
>Originator:     Sevan Janiyan
>Release:        7.99.67
>Organization:
>Environment:
NetBSD 7.99.67 hpcarm
>Description:
Changes in r1.92 of src/sys/arch/arm/include/cpu.h break DTrace on NetBSD/hpcarm.
When the system boot, with the modules set in /etc/modules.conf, the system reports:
kobj_checksyms, 979: [dtrace]: linker error: symbol `cpu_info' not found
WARNING: module error: unable to affix module `dtrace', error 8
kobj_checksyms, 979: [dtrace]: linker error: symbol `cpu_info' not found
WARNING: module error: unable to affix module `dtrace', error 8
WARNING: module error: recursive load failed for `dtrace_sdt' (`dtrace' required), error 8
kobj_checksyms, 979: [dtrace]: linker error: symbol `cpu_info' not found
WARNING: module error: unable to affix module `dtrace', error 8
WARNING: module error: recursive load failed for `dtrace_fbt' (`dtrace' required), error 8
kobj_checksyms, 979: [dtrace]: linker error: symbol `cpu_info' not found
WARNING: module error: unable to affix module `dtrace', error 8
WARNING: module error: recursive load failed for `dtrace_lockstat' (`dtrace' required), error 8
kobj_checksyms, 979: [dtrace]: linker error: symbol `cpu_info' not found
WARNING: module error: unable to affix module `dtrace', error 8
WARNING: module error: recursive load failed for `dtrace_profile' (`dtrace' required), error 8
kobj_checksyms, 979: [dtrace]: linker error: symbol `cpu_info' not found
WARNING: module error: unable to affix module `dtrace', error 8
WARNING: module error: recursive load failed for `dtrace_syscall' (`dtrace' required), error 8

Reverting this change, allows all but the lockstat module to load.

With this change reverted, Lockstat module now reports that lockstat_dtrace_enabled, lockstat_dev_enabled, lockstat_probe_stub, lockstat_probe_func, lockstat_probemap, lockstat_enabled symbols not found.
>How-To-Repeat:
Try a daily from today for hpcarm on a hpcarm 710/720/728.
set the following in /etc/modules.conf & reboot
solaris
dtrace
dtrace_sdt
dtrace_fbt
dtrace_lockstat
dtrace_profile
dtrace_syscall

>Fix:
reverting r1.92 of src/sys/arch/arm/include/cpu.h resolves the issue.

>Release-Note:

>Audit-Trail:

Responsible-Changed-From-To: port-hpcarm-maintainer->skrll
Responsible-Changed-By: skrll@NetBSD.org
Responsible-Changed-When: Tue, 04 Apr 2017 06:20:30 +0000
Responsible-Changed-Why:
Take


From: "Sevan Janiyan" <sevan@netbsd.org>
To: gnats-bugs@gnats.NetBSD.org
Cc: 
Subject: PR/52138 CVS commit: src/sys/arch/arm/arm
Date: Tue, 4 Apr 2017 11:46:13 +0000

 Module Name:	src
 Committed By:	sevan
 Date:		Tue Apr  4 11:46:13 UTC 2017

 Modified Files:
 	src/sys/arch/arm/arm: arm_machdep.c

 Log Message:
 Define NCPUINFO and set it to 1 or MAXCPUS whether on single or multiprocessor system.
 Use NCPUINFO as the array size for *cpu_info[].
 Closes PR port-hpcarm/52138
 Patch by skrll
 ok pgoyette


 To generate a diff of this commit:
 cvs rdiff -u -r1.50 -r1.51 src/sys/arch/arm/arm/arm_machdep.c

 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.

State-Changed-From-To: open->closed
State-Changed-By: sevan@NetBSD.org
State-Changed-When: Tue, 04 Apr 2017 11:51:01 +0000
State-Changed-Why:
Fixed, thanks to Nick :)


>Unformatted:

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