Re: aacraid: kernel NULL pointer dereference

Mark Haverkamp
2005-04-13T16:58:52Z

On Wed, 2005-04-13 at 18:02 +0200, Ralf Müller wrote:
> I currently try to set up a server with an Adaptec 2810SA RAID controller.
> While testing the Adaptec command line utility aacraid (actually the
> command "controller list") with a vanilla 2.6.12-rc2 kernel I got the
> following kernel oops - maybe someone is interested, maybe someone as
> some help for me:

I was able to reproduce this on my machine. What I found was that if I
had some aacX devices in /dev that didn't exist that I got this fault.
You may try, as a work around for now, to delete any aac devices in /dev
that don't really exist and see it that helps.

Mark.

>
> Unable to handle kernel NULL pointer dereference at virtual address 0000002c
> printing eip:
> c02e62fa
> *pde = 00000000
> Oops: 0002 [#1]
> PREEMPT SMP
> Modules linked in: nvram ipv6 speedstep_lib freq_table processor edd evdev joydev st sr_mod af_packet sg 3c59x mii ehci_hcd uhci_hcd e1000 usbcore i2c_i801 i2c_core intel_agp agpgart parport_pc lp parport video1394 ohci1394 raw1394 ieee1394 capability commoncap dm_mod reiserfs ide_cd cdrom ide_disk aacraid piix ide_core sd_mod scsi_mod
> CPU: 0
> EIP: 0060:[<c02e62fa>] Not tainted VLI
> EFLAGS: 00010046 (2.6.12-rc2-smp)
> EIP is at _spin_lock_irqsave+0x1a/0x80
> eax: 00000000 ebx: 0000002c ecx: 00000001 edx: 00000286
> esi: f6116000 edi: 0000002c ebp: bf8a4440 esp: f6117f34
> ds: 007b es: 007b ss: 0068
> Process aaccli (pid: 6691, threadinfo=f6116000 task=f5f18a60)
> Stack: 00042008 00000000 f886980f 00042008 00000000 00000000 f886888d 00042008
> bf8a4440 00000000 bf8a4440 f8869243 f88708a0 f5331d80 ffffffe7 c0170888
> bf8a4440 00042008 00000000 f5331d80 00000005 f6116000 c0170a05 f6116000
> Call Trace:
> [<f886980f>] fib_alloc+0xf/0x60 [aacraid]
> [<f886888d>] ioctl_send_fib+0xd/0x100 [aacraid]
> [<f8869243>] aac_do_ioctl+0xb3/0xb8 [aacraid]
> [<c0170888>] do_ioctl+0x48/0x70
> [<c0170a05>] vfs_ioctl+0x55/0x1d0
> [<c0170bc6>] sys_ioctl+0x46/0x60
> [<c01040cb>] sysenter_past_esp+0x54/0x79
> Code: eb db e8 9a ef ff ff eb c0 90 8d b4 26 00 00 00 00 56 53 89 c3 b8 01 00 00 00 e8 12 65 e3 ff be 00 e0 ff ff 21 e6 9c 5a fa 31 c0 <86> 03 84 c0 7e 0c c7 43 04 00 00 00 00 89 d0 5b 5e c3 52 9d b8
> <6>note: aaccli[6691] exited with preempt_count 1
>
> The system is a newly installed SuSE 9.3. If you need more
> information - please ask.
>
> Regard
> Ralf