Date: Fri, 10 Jul 2009 17:01:21 +0200 From: Oliver Pinter <oliver.pntr@gmail.com> To: Robert Watson <rwatson@freebsd.org> Cc: freebsd-stable@freebsd.org Subject: Re: smbfs panic when lost connection or unmount --force Message-ID: <6101e8c40907100801r382ded4boddd853f771867bd0@mail.gmail.com> In-Reply-To: <alpine.BSF.2.00.0907101209350.10745@fledge.watson.org> References: <6101e8c40907091755n5aefe289r6eec14cf7f4287dc@mail.gmail.com> <alpine.BSF.2.00.0907101209350.10745@fledge.watson.org>
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Hello! Here is the bt: http://centaur.sch.bme.hu/~oliverp/freebsd/smbfs_panic/DSC01845.JPG http://centaur.sch.bme.hu/~oliverp/freebsd/smbfs_panic/DSC01846.JPG http://centaur.sch.bme.hu/~oliverp/freebsd/smbfs_panic/DSC01847.JPG steps to reproduce: 1) mount_smbfs -I server //biz@foo.bar.baz /media/biz 2) generate IO from smb (cp somewate ..) 3) under IO pull down the network cable 4) a) wait to panic b) umount -f /media/biz, and the system faster panics On 7/10/09, Robert Watson <rwatson@freebsd.org> wrote: > > On Fri, 10 Jul 2009, Oliver Pinter wrote: > >> It is a kernel panic, when force unmount the smbfs volume or lost the >> connection with the samba server. > > This is a NULL pointer dereference in the kernel. Per Attilio's e-mail, a > stack trace should help us track it down. Thanks! > > Robert N M Watson > Computer Laboratory > University of Cambridge > >> >> -- >> Thes OS is: >> >> >> kern.ostype: FreeBSD >> kern.osrelease: 7.2-STABLE >> kern.osrevision: 199506 >> kern.version: FreeBSD 7.2-STABLE #4: Sat Jun 27 21:44:32 CEST 2009 >> root@oliverp:/usr/obj/usr/src/sys/stable >> kern.osreldate: 702103 >> >> -- >> make.conf: >> >> >> CPUTYPE?=core2 >> CFLAGS= -O2 -fno-strict-aliasing -pipe >> MODULES_OVERRIDE=smbfs libiconv libmchain zfs opensolaris drm cd9660 >> cd9660_iconv >> >> -- >> panic message: >> >> Jul 10 01:58:39 oliverp syslogd: kernel boot file is /boot/kernel/kernel >> Jul 10 01:58:39 oliverp kernel: kernel trap 12 with interrupts disabled >> Jul 10 01:58:39 oliverp kernel: >> Jul 10 01:58:39 oliverp kernel: >> Jul 10 01:58:39 oliverp kernel: Fatal trap 12: page fault while in kernel >> mode >> Jul 10 01:58:39 oliverp kernel: cpuid = 2; apic id = 02 >> Jul 10 01:58:39 oliverp kernel: fault virtual address = 0x30 >> Jul 10 01:58:39 oliverp kernel: fault code = supervisor read data, >> page not present >> Jul 10 01:58:39 oliverp kernel: instruction pointer = >> 0x8:0xffffffff80327fd0 >> Jul 10 01:58:39 oliverp kernel: stack pointer = >> 0x10:0xffffff8078360940 >> Jul 10 01:58:39 oliverp kernel: frame pointer = >> 0x10:0xffffff0004c31390 >> Jul 10 01:58:39 oliverp kernel: code segment = base 0x0, limit >> 0xfffff, type 0x1b >> Jul 10 01:58:39 oliverp kernel: = DPL 0, pres 1, long 1, def32 0, gran 1 >> Jul 10 01:58:39 oliverp kernel: processor eflags = resume, IOPL = 0 >> Jul 10 01:58:39 oliverp kernel: current process = 60406 (smbiod0) >> Jul 10 01:58:39 oliverp kernel: trap number = 12 >> Jul 10 01:58:39 oliverp kernel: panic: page fault >> Jul 10 01:58:39 oliverp kernel: cpuid = 2 >> Jul 10 01:58:39 oliverp kernel: Uptime: 6h51m16s >> Jul 10 01:58:39 oliverp kernel: Physical memory: 4087 MB >> Jul 10 01:58:39 oliverp kernel: Dumping 2448 MB:Copyright (c) >> 1992-2009 The FreeBSD Project. >> _______________________________________________ >> freebsd-stable@freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-stable >> To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" >> >
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