Date: Tue, 14 Apr 2009 16:04:11 +0300 From: "Oleg V. Nauman" <oleg@opentransfer.com> To: freebsd-stable@freebsd.org Subject: 7.2-PRERELEASE: make process waiting indefinitely Message-ID: <20090414160411.042472seockg0css@webmail.opentransfer.com>
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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
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