Oops with ALSA and OSS emulation - 2.6.0-test1

I'm getting the following oops when I start some audio applications:

Jul 15 16:05:25 supernova kernel: Unable to handle kernel paging request at virtual address d0a07000
Jul 15 16:05:25 supernova kernel:  printing eip:
Jul 15 16:05:25 supernova kernel: d09b5b37
Jul 15 16:05:25 supernova kernel: *pde = 0ff7f067
Jul 15 16:05:25 supernova kernel: *pte = 00000000
Jul 15 16:05:25 supernova kernel: Oops: 0000 [#1]
Jul 15 16:05:25 supernova kernel: CPU:    0
Jul 15 16:05:25 supernova kernel: EIP:    0060:[__crc_send_group_sig_info+5177760/5680417]    Tainted: P
Jul 15 16:05:25 supernova kernel: EFLAGS: 00210202
Jul 15 16:05:25 supernova kernel: EIP is at resample_expand+0x343/0x377 [snd_pcm_oss]
Jul 15 16:05:25 supernova kernel: eax: d09b5b37   ebx: 00000000   ecx: 000007ff   edx: 00000000
Jul 15 16:05:25 supernova kernel: esi: d0a80166   edi: c3355610   ebp: d0a06ffe   esp: c4f55e54
Jul 15 16:05:25 supernova kernel: ds: 007b   es: 007b   ss: 0068
Jul 15 16:05:25 supernova kernel: Process fltk-eclient (pid: 668, threadinfo=c4f54000 task=c7478080)
Jul 15 16:05:25 supernova kernel: Stack: d09b2fb1 c3355580 c3c644e0 c4f55e80 00000000 c4f5007b ffffff00 ffffffff
Jul 15 16:05:25 supernova kernel:        d09b595b d09b5aaf d09b5b37 c33555f0 00000000 00000004 00000004 00000001
Jul 15 16:05:25 supernova kernel:        00000000 000003ee 0000045a 00000400 c3355580 c6975580 d09b5fe1 c3355580
Jul 15 16:05:25 supernova kernel: Call Trace:
Jul 15 16:05:25 supernova kernel:  [__crc_send_group_sig_info+5166618/5680417] snd_pcm_plug_playback_channels_mask+0x72/0xd8 [snd_pcm_oss]
Jul 15 16:05:25 supernova kernel:  [__crc_send_group_sig_info+5177284/5680417] resample_expand+0x167/0x377 [snd_pcm_oss]
Jul 15 16:05:25 supernova kernel:  [__crc_send_group_sig_info+5177624/5680417] resample_expand+0x2bb/0x377 [snd_pcm_oss]
Jul 15 16:05:25 supernova kernel:  [__crc_send_group_sig_info+5177760/5680417] resample_expand+0x343/0x377 [snd_pcm_oss]
Jul 15 16:05:25 supernova kernel:  [__crc_send_group_sig_info+5178954/5680417] rate_transfer+0x59/0x5d [snd_pcm_oss]
Jul 15 16:05:25 supernova kernel:  [__crc_send_group_sig_info+5167602/5680417] snd_pcm_plug_write_transfer+0x95/0xf4 [snd_pcm_oss]
Jul 15 16:05:25 supernova kernel:  [__crc_send_group_sig_info+5151219/5680417] snd_pcm_oss_write2+0xd0/0x13c [snd_pcm_oss]
Jul 15 16:05:25 supernova kernel:  [__crc_send_group_sig_info+5151752/5680417] snd_pcm_oss_write1+0x1a9/0x1d0 [snd_pcm_oss]
Jul 15 16:05:25 supernova kernel:  [__crc_send_group_sig_info+5159856/5680417] snd_pcm_oss_write+0x43/0x5d [snd_pcm_oss]
Jul 15 16:05:25 supernova kernel:  [__crc_send_group_sig_info+5159789/5680417] snd_pcm_oss_write+0x0/0x5d [snd_pcm_oss]
Jul 15 16:05:25 supernova kernel:  [vfs_write+176/281] vfs_write+0xb0/0x119
Jul 15 16:05:25 supernova kernel:  [do_gettimeofday+25/134] do_gettimeofday+0x19/0x86
Jul 15 16:05:25 supernova kernel:  [sys_write+66/99] sys_write+0x42/0x63
Jul 15 16:05:25 supernova kernel:  [syscall_call+7/11] syscall_call+0x7/0xb
Jul 15 16:05:25 supernova kernel:
Jul 15 16:05:25 supernova kernel: Code: 8b 45 00 eb ac 0f b6 45 00 c1 e0 08 eb a3 81 fa 00 80 00 00

The card is a intel8x0 (Intel 82801CA/CAM AC'97)
Kernel is tainted due to nvidia drivers.

Any ideas on what might be ?

Álvaro

At Fri, 18 Jul 2003 16:43:29 +0100,

i've heard that this might happen if you compile without frame pointer. anyway it must be fixed...

Takashi

I can verify that this oops goes away when building the kernel
with frame pointers. I have a SiS 7012 and was seeing the same oops.

Joseph Fannin
[email protected]

Rothchild's Rule -- "For every phenomenon, however complex, someone will
eventually come up with a simple and elegant theory. This theory will
be wrong."