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Message-ID: <6bffcb0e0705151117l34931c58p2a7720f6c79f24d0@mail.gmail.com>
Date: Tue, 15 May 2007 20:17:57 +0200
From: "Michal Piotrowski" <michal.k.k.piotrowski@gmail.com>
To: "Eric R. Buddington" <ebuddington@wesleyan.edu>
Subject: Re: 2.6.21.1 panic in sis900_interrupt
Cc: linux-kernel@vger.kernel.org
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Hi Eric,

On 15/05/07, Eric R. Buddington <ebuddington@wesleyan.edu> wrote:
> (my apologies if this is a duplicate. Verizon has been losing or delaying
> my mail, and refuses to address the problem until I switch from
> mutt (or telnet to port 25) to Outlook Express.)
>
> My kernel, on an Athlon XP system:
> Linux version 2.6.21.1 (eric@pool-71-123-104-7.spfdma.east.verizon.net)
> (gcc version 4.1.1) #1 Sun Apr 29 16:13:06 EDT 2007
>
> This is repeatable 2 out of 2 times, during boot. It did not happen in
> 2.6.20-mm2.
>
> The BUG (apologies for the linewrapping):
> -------------------------------------------------------------------
> BUG: unable to handle kernel NULL pointer dereference at virtual
> address 000001c0
>  printing eip:
> c03ebe1a
> *pde = 00000000
> Oops: 0000 [#1]
> Modules linked in: ppp_synctty ppp_async crc_ccitt ppp_generic slhc
> netconsole r128 drm softdog keyspan_pda usbserial sch_tbf raw1
> 394 dv1394 ohci1394 ieee1394 snd_ice1712 snd_ice17xx_ak4xxx
> snd_ak4xxx_adda snd_cs8427 snd_i2c snd_mpu401_uart snd_rawmidi usbnet
> snd_intel8x0 snd_ac97_codec ac97_bus ipt_tos ipt_owner iptable_nat
> nf_conntrack_ipv4 ipt_MASQUERADE nf_nat nf_conntrack nfnetlink
> ipt_TOS iptable_filter iptable_mangle ip_tables x_tables 8139too
> sis900 sis5595 hwmon i2c_isa i2c_core sis_agp agpgart ide_scsi
> CPU:    0
> EIP:    0060:[<c03ebe1a>]    Not tainted VLI
> EFLAGS: 00010212   (2.6.21.1 #1)
> EIP is at netif_rx+0x7/0xec
> eax: 00000000   ebx: f5e3e600   ecx: 0000aa12   edx: 000012aa
> esi: f5e3e600   edi: 00800000   ebp: 000000ba   esp: c0697f84
> ds: 007b   es: 007b   fs: 00d8  gs: 0033  ss: 0068
> Process httpd (pid: 3808, ti=c0697000 task=f14bb550 task.ti=f14be000)
> Stack: f5e3e600 f5da0b40 f8911e5e ffffffff 00000086 c0709340 00000296
> 0000d410
>        f5da0800 f5da0b40 00000028 0000d400 00000009 f5e3e600 0000000f
> 00000000
>        0000d400 00000000 f2150d60 00000000 00000000 00000014 c0136a5e
> c0637480
> Call Trace:
>  [<f8911e5e>] sis900_interrupt+0x240/0x59e [sis900]
>  [<c0136a5e>] handle_IRQ_event+0x1a/0x3f
>  [<c013766c>] handle_fasteoi_irq+0x0/0x77
>  [<c01376bd>] handle_fasteoi_irq+0x51/0x77
>  [<c01069d7>] do_IRQ+0xa5/0xca
>  [<c0158d2a>] do_path_lookup+0x146/0x161
>  [<c0157147>] generic_permission+0x55/0xca
>  [<c01054bf>] common_interrupt+0x23/0x28
>  [<c0138675>] find_get_page+0x21/0x22
>  [<c013a6a2>] filemap_nopage+0x98/0x2af
>  [<c015065c>] __dentry_open+0xd4/0x160
>  [<c014249a>] __handle_mm_fault+0x13a/0x79c
>  [<c0478cc0>] do_page_fault+0x20d/0x4d1
>  [<c0478ab3>] do_page_fault+0x0/0x4d1
>  [<c0477914>] error_code+0x74/0x7c
>  =======================
> Code: 82 8a 00 00 00 f6 c4 01 0f 85 d1 fd ff ff e9 e2 fd ff ff 31 db
> e9 ee fe ff ff 83 c4 14 89 d8 5b 5e 5f 5d 8b 40 <8b> c0 01 00
>  c0 74 83 78 0c 75 83 08 00 74 Kernel panic - not syncing: Fatal
> exception in interrupt
>

Yes, it's a known issue. Patch ->
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff_plain;h=dc5a144991ba803bc8afded105c9db1dea0e57ab

Regards,
Michal
-- 
Michal K. K. Piotrowski
Kernel Monkeys
(http://kernel.wikidot.com/start)
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