On Tue, Feb 12, 2008 at 01:54:38AM +0100, maximilian attems wrote:
> On Sun, 10 Feb 2008, Paul Logasa Bogen II wrote:
>
> > Package: linux-image-2.6.22-3-686
> > Version: 2.6.22-6
> > Severity: normal
>
>
> > The machine will completely freeze up and the kern.log shows the following:
> >
> > Feb 9 22:23:29 twang kernel: BUG: unable to handle kernel NULL pointer
> > dereference at virtual address 0000006e
> > Feb 9 22:23:29 twang kernel: printing eip:
> > Feb 9 22:23:29 twang kernel: c017c070
> > Feb 9 22:23:29 twang kernel: *pde = 00000000
> > Feb 9 22:23:29 twang kernel: Oops: 0000 [#1]
> > Feb 9 22:23:29 twang kernel: SMP
> > Feb 9 22:23:29 twang kernel: Modules linked in: nfs lockd nfs_acl sunrpc
> > autofs4 thermal fan button processor ac battery ipv6 dm_snapshot dm_mirror
> > dm_mod loop ide_cd cdrom generic tsdev intel_rng megaraid_mbox megaraid_mm
> > e1000 piix ide_core uhci_hcd usbcore ata_generic parport_pc parport
> > serio_raw floppy libata iTCO_wdt psmouse rtc sg e7xxx_edac edac_mc pcspkr
> > ext3 jbd mbcache sd_mod mptspi mptscsih mptbase scsi_transport_spi scsi_mod
> > shpchp pci_hotplug evdev
> > Feb 9 22:23:29 twang kernel: CPU: 1
> > Feb 9 22:23:29 twang kernel: EIP: 0060:[<c017c070>] Not tainted VLI
> > Feb 9 22:23:29 twang kernel: EFLAGS: 00010206 (2.6.22-3-686 #1)
> > Feb 9 22:23:29 twang kernel: EIP is at graft_tree+0x22/0xc9
> > Feb 9 22:23:29 twang kernel: eax: f19be9d8 ebx: d437bf2c ecx: 00000000
> > edx: d437bf2c
> > Feb 9 22:23:29 twang kernel: esi: ffffffec edi: ef14c3c0 ebp: 00000000
> > esp: d437bdf8
> > Feb 9 22:23:29 twang kernel: ds: 007b es: 007b fs: 00d8 gs: 0033 ss:
> > 0068
> > Feb 9 22:23:29 twang kernel: Process mount.nfs (pid: 31709, ti=d437a000
> > task=c5555070 task.ti=d437a000)
> > Feb 9 22:23:29 twang kernel: Stack: ef14c3c0 d437bf2c cf618003 c017c3af
> > 00000000 c03297c0 00000000 cf618003
> > Feb 9 22:23:29 twang kernel: 00000000 c017d399 00000000 c7458000
> > ef14c3c0 cf618000 cf376000 0038b025
> > Feb 9 22:23:29 twang kernel: 00000000 d437be70 00000000 d437be78
> > 0100007f 00000000 f150b800 c027d5cf
> > Feb 9 22:23:29 twang kernel: Call Trace:
> > Feb 9 22:23:29 twang kernel: [<c017c3af>] do_add_mount+0x86/0xfb
> > Feb 9 22:23:29 twang kernel: [<c017d399>] do_mount+0x647/0x69a
> > Feb 9 22:23:29 twang kernel: [<c027d5cf>] ip4_datagram_connect+0x2bf/0x314
> > Feb 9 22:23:29 twang kernel: [<c023f820>] move_addr_to_user+0x39/0x50
> > Feb 9 22:23:29 twang kernel: [<c011aeee>] do_page_fault+0x2d0/0x57e
> > Feb 9 22:23:29 twang kernel: [<c02a51fa>] error_code+0x72/0x78
> > Feb 9 22:23:29 twang kernel: [<c02a00d8>] atm_dev_register+0x26/0x1d4
> > Feb 9 22:23:29 twang kernel: [<c017bed2>] copy_mount_options+0x90/0x109
> > Feb 9 22:23:29 twang kernel: [<c017d463>] sys_mount+0x77/0xb3
> > Feb 9 22:23:29 twang kernel: [<c0103d0e>] sysenter_past_esp+0x6b/0xa1
> > Feb 9 22:23:29 twang kernel: =======================
> > Feb 9 22:23:29 twang kernel: Code: c4 10 89 d0 5b 5e 5f 5d c3 57 89 c7 56
> > be ea ff ff ff 53 8b 40 14 89 d3 83 78 30 00 0f 88 aa 00 00 00 8b 02 66 be
> > ec ff 8b 48 0c <0f> b7 41 6e 25 00 f0 00 00 3d 00 40 00 00 8b 47 10 0f 94
> > c2 8b
> > Feb 9 22:23:29 twang kernel: EIP: [<c017c070>] graft_tree+0x22/0xc9 SS:ESP
> > 0068:d437bdf8
>
> please try 2.6.24-4 from unstable beside an important security fix
> it should have some nfs fixes, thanks for feedback.
Does this error still occur with more recent kernel versions?
Cheers,
Moritz
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