Re: [OOPS, usbcore, releaseintf] 2.6.0-test10-mm1

From: Vince
Date: Sun Dec 07 2003 - 17:26:24 EST

Duncan Sands wrote:
On Sunday 07 December 2003 22:09, Vince wrote:

Duncan Sands wrote:

Does this help? It isn't finished - it represents the current state of
my fix. Warning: have barf bag ready.

> [patch cut]

Yes, your patch fixes the problem: no more oops and modem_run now exits
cleanly. Thank you very much !

Hi Vincent, that's great! I think the fix is solid, but can you please beat on it
a bit just to be sure...



Yes, I was doing just that, and perhaps I've spoken too early as I got this (non-fatal) oops in the log (the kernel is tainted as this time I've loaded X and therefore the nvidia kernel driver; however I've never experienced this bug before; I'll try to reproduce without it):

------------[ cut here ]------------
kernel BUG at include/linux/list.h:148!
invalid operand: 0000 [#1]
CPU: 0
EIP: 0060:[<c016d3a3>] Tainted: PF VLI
EFLAGS: 00010206
EIP is at prune_dcache+0x1d3/0x1e0
eax: 00000000 ebx: c259dbc0 ecx: c259dbd4 edx: c7009e1c
esi: c259dc30 edi: c1190000 ebp: c1191e84 esp: c1191e6c
ds: 007b es: 007b ss: 0068
Process kswapd0 (pid: 7, threadinfo=c1190000 task=c1195340)
Stack: c70dfa40 c1191e70 0000007b 00000080 c1190000 0000000d c1191e90 c016d892
00000080 c1191ec4 c014524f 00000080 000000d0 000069a8 00110162 00000000
00000029 00000000 c7ffeb60 000000ad c02ec9f4 00000001 c1191f08 c014662e
Call Trace:
[<c016d892>] shrink_dcache_memory+0x22/0x30
[<c014524f>] shrink_slab+0x10f/0x160
[<c014662e>] balance_pgdat+0x1ce/0x1f0
[<c0146729>] kswapd+0xd9/0xf0
[<c0120640>] autoremove_wake_function+0x0/0x50
[<c02a2f66>] ret_from_fork+0x6/0x14
[<c0120640>] autoremove_wake_function+0x0/0x50
[<c0146650>] kswapd+0x0/0xf0
[<c010a2a9>] kernel_thread_helper+0x5/0xc

Code: 4f 14 a8 08 75 11 8b 47 08 ff 4f 14 a8 08 74 b3 e8 83 1a fb ff eb ac e8 7c 1a fb ff eb e8 0f 0b 95 00 5d 84 2b c0 e9 33 ff ff ff <0f> 0b 94 00 5d 84 2b c0 e9 1a ff ff ff 55 89 e5 57 56 53 83 ec
<6>note: kswapd0[7] exited with preempt_count 2

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