Date: Fri, 12 Dec 2008 13:54:32 -0600 From: Guy Helmer <ghelmer@palisadesys.com> To: "Paul B. Mahol" <onemda@gmail.com> Cc: freebsd-stable@freebsd.org Subject: Re: 7.1RC1: system hang Message-ID: <4942C178.2030206@palisadesys.com> In-Reply-To: <3a142e750812120729v478d850do93e31e5d8502ef68@mail.gmail.com> References: <49419BE0.2070502@palisadesys.com> <3a142e750812111900u1d9264bh27d39092f5dcc4bf@mail.gmail.com> <49426880.40302@palisadesys.com> <3a142e750812120729v478d850do93e31e5d8502ef68@mail.gmail.com>
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Paul B. Mahol wrote: > On 12/12/08, Guy Helmer <ghelmer@palisadesys.com> wrote: > >> Paul B. Mahol wrote: >> >>> On 12/12/08, Guy Helmer <ghelmer@palisadesys.com> wrote: >>> >>> >>>> I have a recurring hang on FreeBSD 7.1 roughly-RC1 (releng_7_1 checkout >>>> as of 2008-12-08) on a dual-CPU hyperthreaded Xeon i386. I've dropped >>>> into the kernel debugger on the VGA console and transcribed the >>>> following information (if I omit anything critical, let me know -- the >>>> machine is still sitting at the debugger prompt) : >>>> >>>> > where >>>> pid 20 tid 100018 td 0xc45008c0 >>>> kdb_enter_why >>>> scgetc >>>> sckdbevent >>>> kdbmux_intr >>>> kdbmux_kdb_intr >>>> taskqueue_run >>>> taskqueue_swi_giant_run >>>> ithread_loop >>>> fork_exit(c063cce0, c44ac590, e4a36d38) at 0xc063a624 = fork_exit+0x94 >>>> fork_trampoline() at 0xc07e41a0 = fork_trampoline+0x8 >>>> >>>> > show allpcpu >>>> cpuid 0 in idle >>>> cpuid 1: proc 23457 >>>> cpuid 2: idle >>>> cpuid 3: swi6 proc 20 >>>> >>>> >>> what is proc 23457? >>> >>> >> proc 23457 is "filter", an Autonomy KeyView Filter API program (extracts >> text out of various document formats) that is being run using FreeBSD 6 >> compatibility libraries. >> >> Guy >> >> >> > > Could you give most interesting part of "ps" output. > I've hooked up a serial console and I'll wait for the problem to occur again to to get the "ps" output -- there's about 70 active processes on the system, and transcribing from the VGA console is taking forever... Guy
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