Date: Mon, 10 Dec 2007 17:13:29 +0200 From: Kostik Belousov <kostikbel@gmail.com> To: Marcus Alves Grando <mnag@freebsd.org> Cc: current@freebsd.org Subject: Re: Fatal trap 12: page fault while in kernel mode [While close wine application] Message-ID: <20071210151329.GY83121@deviant.kiev.zoral.com.ua> In-Reply-To: <4756F8DC.3070301@FreeBSD.org> References: <4756F844.2000405@FreeBSD.org> <4756F8DC.3070301@FreeBSD.org>
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[-- Attachment #1 --] On Wed, Dec 05, 2007 at 05:15:40PM -0200, Marcus Alves Grando wrote: > # uname -a > FreeBSD sup-afu 7.0-BETA4 FreeBSD 7.0-BETA4 #9: Mon Dec 3 10:26:13 BRST > 2007 root@sup-afu:/usr/obj/usr/src/sys/MARCUS i386 > > Marcus Alves Grando wrote: > >Fatal trap 12: page fault while in kernel mode > >cpuid = 0; apic id = 00 > >fault virtual address = 0x10 > >fault code = supervisor write, page not present > >instruction pointer = 0x20:0xc062c948 > >stack pointer = 0x28:0xe652eb68 > >frame pointer = 0x28:0xe652eb88 > >code segment = base 0x0, limit 0xfffff, type 0x1b > > = DPL 0, pres 1, def32 1, gran 1 > >processor eflags = interrupt enabled, resume, IOPL = 0 > >current process = 87845 (wine-pthread) > >trap number = 12 > >panic: page fault > >cpuid = 0 > >Uptime: 2d6h12m13s > >Physical memory: 1007 MB > >Dumping 231 MB: 216 200 184 168 152 136 120 104 88 72 56 40 24 8 > > > >#0 doadump () at pcpu.h:195 > >195 pcpu.h: No such file or directory. > > in pcpu.h > >(kgdb) bt > >#0 doadump () at pcpu.h:195 > >#1 0xc0652df7 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:409 > >#2 0xc06530b9 in panic (fmt=Variable "fmt" is not available. > >) at /usr/src/sys/kern/kern_shutdown.c:563 > >#3 0xc08f772c in trap_fatal (frame=0xe652eb28, eva=16) at > >/usr/src/sys/i386/i386/trap.c:872 > >#4 0xc08f7990 in trap_pfault (frame=0xe652eb28, usermode=0, eva=16) at > >/usr/src/sys/i386/i386/trap.c:785 > >#5 0xc08f82e2 in trap (frame=0xe652eb28) at > >/usr/src/sys/i386/i386/trap.c:463 > >#6 0xc08decfb in calltrap () at /usr/src/sys/i386/i386/exception.s:139 > >#7 0xc062c948 in knlist_cleardel (knl=0xc44892b4, td=0x0, islocked=1, > >killkn=0) at atomic.h:149 > >#8 0xc068ba4d in pipeclose (cpipe=0xc4489244) at > >/usr/src/sys/kern/sys_pipe.c:1508 > >#9 0xc068bb60 in pipe_close (fp=0xc48ef828, td=0xc41b5220) at > >/usr/src/sys/kern/sys_pipe.c:1425 > >#10 0xc0622847 in fdrop (fp=0xc48ef828, td=0xc41b5220) at file.h:297 > >#11 0xc0623fef in closef (fp=0xc48ef828, td=0xc41b5220) at > >/usr/src/sys/kern/kern_descrip.c:1958 > >#12 0xc06244ff in kern_close (td=0xc41b5220, fd=45) at > >/usr/src/sys/kern/kern_descrip.c:1054 > >#13 0xc06245da in close (td=0xc41b5220, uap=0xe652ecfc) at > >/usr/src/sys/kern/kern_descrip.c:1006 > >#14 0xc08f7ce5 in syscall (frame=0xe652ed38) at > >/usr/src/sys/i386/i386/trap.c:1008 > >#15 0xc08ded60 in Xint0x80_syscall () at > >/usr/src/sys/i386/i386/exception.s:196 > >#16 0x00000033 in ?? () > >Previous frame inner to this frame (corrupt stack?) > >(kgdb) l /usr/src/sys/kern/sys_pipe.c:1508 > >1503 PIPE_UNLOCK(cpipe); > >1504 pipe_free_kmem(cpipe); > >1505 PIPE_LOCK(cpipe); > >1506 cpipe->pipe_present = 0; > >1507 pipeunlock(cpipe); > >1508 knlist_clear(&cpipe->pipe_sel.si_note, 1); > >1509 knlist_destroy(&cpipe->pipe_sel.si_note); > >1510 > >1511 /* > >1512 * If both endpoints are now closed, release the memory for the > > > >I have a vmcore if need... Is it easily reproducable ? Could you, please, show the output of the kgdb commands p/x *cpipe p/x *(cpipe->pipe_peer) from the dump ? Also, it would be very useful to get an idea of what line of kern_event.c is actually faulted in frame #7. Try to do "list" in that frame. Thanks. [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (FreeBSD) iD8DBQFHXVeZC3+MBN1Mb4gRAmxTAKCjdsGHNWRp7268T2cApdck1h4T8gCfYwmt kGaBaHROi9SF/pjsdCYK0rM= =s0lg -----END PGP SIGNATURE-----help
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