Messages in this thread | | | Date | Tue, 12 Jul 2005 13:45:21 -0700 | From | Mike Anderson <> | Subject | Re: 2.6.13-rc2-mm2 : oops in dm_mod |
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Laurent Riffard [laurent.riffard@free.fr] wrote: > device-mapper: 4.4.0-ioctl (2005-01-12) initialised: dm-devel@redhat.com > Unable to handle kernel NULL pointer dereference at virtual address 00000094 > printing eip: > d08612ec > *pde = 00000000 > Oops: 0000 [#1] > last sysfs file: > Modules linked in: dm_mod joydev usbhid uhci_hcd usbcore video hotkey configfs > CPU: 0 > EIP: 0060:[<d08612ec>] Not tainted VLI > EFLAGS: 00010246 (2.6.13-rc2-mm2) > EIP is at suspend_targets+0x8/0x42 [dm_mod] > eax: 00000000 ebx: cf764340 ecx: 00000000 edx: 00000000 > esi: 00000000 edi: 00000000 ebp: cf06bec4 esp: cf06beb8 > ds: 007b es: 007b ss: 0068 > Process lvm2 (pid: 1532, threadinfo=cf06a000 task=cfa3e520) > Stack: cf764340 00000000 ffffffea cf06becc d0861330 cf06bf20 d085ff99 00000000 > cfa3e520 c0114664 00000000 00000000 00000000 00000000 00000000 00000000 > cfa3e520 c0114664 00000000 00000000 00000000 cf06bf20 d0861e0f cf615aa0 > Call Trace: > [<c01038e1>] show_stack+0x76/0x7e > [<c01039ea>] show_registers+0xea/0x152 > [<c0103b8e>] die+0xc2/0x13c > [<c0113348>] do_page_fault+0x394/0x4d4 > [<c0103583>] error_code+0x4f/0x54 > [<d0861330>] dm_table_presuspend_targets+0xa/0xc [dm_mod] > [<d085ff99>] dm_suspend+0x79/0x1a3 [dm_mod] > [<d0862b51>] do_resume+0xee/0x173 [dm_mod]
I am also receiving a similar oops in a call to suspend_targets on bootup.
Alasdiar, Based on your previous patch http://marc.theaimsgroup.com/?l=linux-kernel&m=112112298922766&w=2
How is suspend_targets suppose to protect against the NULL value now being passed in. or is something else going on here?
-andmike -- Michael Anderson andmike@us.ibm.com
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