Re: rem crashed / oops cought
Flo wrote:
>-=-=-=-=-=-
>
>
>Hi,
>rem.rfc822.org the mipsel autobuilder crashed yesterday evening or this
>morning early UTC. I cought the crash on serial console:
>
>
>Kernel unaligned instruction access[#1]:
>Cpu 0
>$ 0 : 0000000000000000 ffffffff804e0000 0000000000000000 0000000000000000
>$ 4 : a800000003d21348 0000000030001fe1 0000000000000000 a800000089cdfd28
>$ 8 : 0000000000000001 005bd0c800000000 2ab78348004007dc 000000002aab8568
>$12 : 000000002abc15a8 ffffffff802d8be4 000000007fbd77e0 7fbd79c4004189a0
>$16 : 000000002aac8f08 000000007fbd78a4 0000000000411008 fffffffffffffffa
>$20 : 000000007fbd78a0 00000000005bd0c8 00000000005d1008 00000000005bd468
>$24 : 0000000000000000 000000007fbd77c8
>$28 : a800000089cdc000 a800000089cdfeb0 0000000000000000 ffffffff2ad05960
>Hi : 000000000001bd68
>Lo : 0000000000009478
>epc : ffffffff2ad05960 0xffffffff2ad05960 Not tainted
>ra : ffffffff2ad05960 0xffffffff2ad05960
>Status: 30001fe3 KX SX UX KERNEL EXL IE
>Cause : 00808010
>BadVA : ffffffff2ad05960
>PrId : 01040102
>Modules linked in: ipv6 dm_snapshot dm_mirror dm_mod
>Process conftest (pid: 22405, threadinfo=a800000089cdc000, task=a80000000bc501a8)
>Stack : 0000000000000000 0000000030001fe0 00000000000010a1 0000000000000001
> fffffffffffffffa 000000007fbd78a4 000000007fbd77e0 0000000000000000
> 0000000000000001 0000000000000000 0000000000000000 0000000000000411
> 0000000000000000 ffffffff802d8bd4 ffffffff80184b30 000000002ab98e7c
> 0000000000432000 0000000000000000 0000000000000000 000000002acff7dc
> 000000002acff7ac 0000000000411000 0000000000000010 0000000000000020
> 0000000000000042 000000002acff7ac 0000000000000000 0000000000000000
> 000000002aaee050 000000007fbd77c8 0000000000000008 000000002aad2c88
> 0000000020001ff3 00000000000001d3 000000000001ce80 0000000000411004
> 0000000000808020 000000002aad2cb0 00000010014cf8c8 0000000000000014
> ...
>Call Trace:
> [<ffffffff802d8bd4>] memset_partial+0x30/0x60
> [<ffffffff80184b30>] sys_brk+0x0/0x160
>
>
>Code:
Hmmm, looks familiar. I had to reboot ball (mips buildd) this morning
for the same reason. My trace:
ball:~# Kernel unaligned instruction access[#1]:
Cpu 1
$ 0 : 0000000000000000 ffffffff804e0000 0000000000000000 0000000000000000
$ 4 : a80000009b1f1368 0000000030001fe1 0000000000000000 a800000004e93d28
$ 8 : 0000000000000001 00000000005bd208 004007dc2aacc690 2aab862800000000
$12 : 2abce56800000000 ffffffff802db444 000000007fedb7f0 004189a07fedb9d4
$16 : 000000002aad7f08 000000007fedb8b4 0000000000411008 fffffffffffffffa
$20 : 000000007fedb8b0 00000000005bd208 00000000005d2008 00000000005bd568
$24 : 0000000000000000 000000007fedb7d8
$28 : a800000004e90000 a800000004e93eb0 0000000000000000 2ad1196080119df4
Hi : 000000000024895e
Lo : 00000000000c2dca
epc : 2ad1196080119df4 0x2ad1196080119df4 Not tainted
ra : 2ad1196080119df4 0x2ad1196080119df4
Status: 30001fe3 KX SX UX KERNEL EXL IE
Cause : 00808010
BadVA : 2ad1196080119df4
PrId : 03040102
Modules linked in: ipv6 uhci_hcd ohci_hcd ehci_hcd usbcore dm_snapshot dm_mirror dm_mod sd_mod aic7xxx scsi_transport_spi scsi_mod m
Process conftest (pid: 12913, threadinfo=a800000004e90000, task=a80000009e5b21e8)
Stack : 0000000000000000 0000000030001fe0 00000000000010a1 0000000000000001
fffffffffffffffa 000000007fedb8b4 000000007fedb7f0 0000000000000000
0000000000000001 0000000000000000 0000000000000000 0000000000000411
0000000000000000 ffffffff802db434 ffffffff801853b0 000000002aba5e7c
0000000000432000 0000000000000000 0000000000000000 000000002ad0b7dc
000000002ad0b7ac 0000000000411000 0000000000000010 0000000000000020
0000000000000042 000000002ad0b7ac 0000000000000000 0000000000000000
000000002aaf9050 000000007fedb7d8 0000000000000008 000000002aaddc88
0000000020001ff3 00000000000001d3 000000000001ce80 0000000000411004
0000000000808020 000000002aaddcb0 640a496e7374616c 6c65642d53697a65
...
Call Trace:
[<ffffffff802db434>] memset_partial+0x30/0x60
[<ffffffff801853b0>] sys_brk+0x0/0x160
Code:
Both of these are in conftest; is that a clue maybe?
--
Steve McIntyre, Cambridge, UK. steve@einval.com
"C++ ate my sanity" -- Jon Rabone
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