Date: Sun, 14 Jul 2013 11:59:53 +0200 From: Patrick Lamaiziere <patfbsd@davenulle.org> To: freebsd-stable@freebsd.org Subject: (9.2) panic under disk load (gam_server / knlist_remove_kq) Message-ID: <20130714115953.1afd6e90@davenulle.org>
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9.2 PRERELEASE (today) / amd64 Hello, I'm seeing a panic while trying to build a poudriere repository. As far I can see it always happens when gam_server is started (ie xfce is running) and under disk load (poudriere bulk build) : (That is something new, the box was pretty stable) the complete crash dump (core.0.txt) is here: http://user.lamaiziere.net/patrick/panic_gam_server.txt Fatal trap 12: page fault while in kernel mode cpuid = 1; apic id = 02 fault virtual address = 0x58 fault code = supervisor read data, page not present Unread portion of the kernel message buffer: Fatal trap 12: page fault while in kernel mode cpuid = 1; apic id = 02 fault virtual address = 0x58 fault code = supervisor read data, page not present instruction pointer = 0x20:0xffffffff808f1bf1 stack pointer = 0x28:0xffffff8108e12a40 frame pointer = 0x28:0xffffff8108e12a70 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 23557 (gam_server) trap number = 12 panic: page fault cpuid = 1 ... #0 doadump (textdump=<value optimized out>) at pcpu.h:234 234 pcpu.h: No such file or directory. in pcpu.h (kgdb) #0 doadump (textdump=<value optimized out>) at pcpu.h:234 #1 0xffffffff8092e4d6 in kern_reboot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:449 #2 0xffffffff8092e9d7 in panic (fmt=0x1 <Address 0x1 out of bounds>) at /usr/src/sys/kern/kern_shutdown.c:637 #3 0xffffffff80d13030 in trap_fatal (frame=0xc, eva=<value optimized out>) at /usr/src/sys/amd64/amd64/trap.c:879 #4 0xffffffff80d13391 in trap_pfault (frame=0xffffff8108e12990, usermode=0) at /usr/src/sys/amd64/amd64/trap.c:795 #5 0xffffffff80d13944 in trap (frame=0xffffff8108e12990) at /usr/src/sys/amd64/amd64/trap.c:463 #6 0xffffffff80cfcc73 in calltrap () at /usr/src/sys/amd64/amd64/exception.S:232 #7 0xffffffff808f1bf1 in knlist_remove_kq (knl=0x30, kn=0xfffffe003b70b280, knlislocked=0, kqislocked=0) at /usr/src/sys/kern/kern_event.c:1847 #8 0xffffffff808f4a5b in knote_fdclose (td=0xfffffe0009a34490, fd=9924) at /usr/src/sys/kern/kern_event.c:2065 #9 0xffffffff808ea573 in kern_close (td=0xfffffe0009a34490, fd=9924) at /usr/src/sys/kern/kern_descrip.c:1250 #10 0xffffffff80d127da in amd64_syscall (td=0xfffffe0009a34490, traced=0) at subr_syscall.c:135 #11 0xffffffff80cfcf57 in Xfast_syscall () at /usr/src/sys/amd64/amd64/exception.S:391 #12 0x00000008019e9a9c in ?? () Previous frame inner to this frame (corrupt stack?) (kgdb) Thanks, regards
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