Quoting Ronald Klop <[email protected]>:
On Tue, 14 Apr 2009 15:04:11 +0200, Oleg V. Nauman
<[email protected]> wrote:
Have experienced today strange issue with my fresh RELENG_7 (
sources from yesterday April 13, userland and kernel in sync ) -
sometimes some processes stop running without any visible reason.
Have seen it twice today during KDE compilation - make process just
waiting for something while nothing else compiles or some other
way prevents this process from running ( no SIGSTOP performed, no
Ctrl-S performed on console). Well it possible related to ( or
triggered by ) new ports compilation feature for SMP machines (
most of KDE port marked as MAKE_JOBS_SAFE=yes ) but anyway this
stuck process behavior is strange. kill -SIGCONT not helps, but it
killable ( Ctrl-C helps at least )
Well some info related to this process:
procstat -t 63472 output:
PID TID COMM TDNAME CPU PRI STATE WCHAN
63472 100059 make - 1 92 sleep wait
procstat -kk 63472 output:
PID TID COMM TDNAME KSTACK
63472 100059 make - mi_switch+0x2c8
sleepq_switch+0xd9 sleepq_catch_signals+0x239 sleepq_wait_sig+0x14
_sleep+0x307 kern_wait+0xa36 wait4+0x3b syscall+0x2b3
Xint0x80_syscall+0x20
Some related sysctls output:
kern.smp.cpus: 2
kern.smp.disabled: 0
kern.smp.active: 1
uname -msr output:
FreeBSD 7.2-PRERELEASE i386
It sounds like
http://www.mail-archive.com/[email protected]/msg102628.html .
There are some tips in that mailthread about debugging it.
Thank you. Looks like it was the same issue.
Ronald.
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