alsa cvs stability problems.

alsa cvs stability problems.

[James Courtier-Dutton]

I am seeing a log to stability problems when using the latest alsa cvs.
Is anyone else seeing similar problems?

Cheers
James

Example stack trackes of the problem:
Jul 10 14:37:18 new kernel: kernel BUG at mm/page_alloc.c:208!
Jul 10 14:37:18 new kernel: invalid operand: 0000 [#1]
Jul 10 14:37:18 new kernel: PREEMPT SMP DEBUG_PAGEALLOC
Jul 10 14:37:18 new kernel: Modules linked in: snd_p16v snd_pcm 
snd_timer snd_ac97_codec snd soundcore snd_page_alloc nvidia md5 ipv6 
parport_pc lp parport usbhid uhci_hcd usbcore e1000 sg ide_cd sr_mod cdrom
Jul 10 14:37:18 new kernel: CPU:    0
Jul 10 14:37:18 new kernel: EIP:    0060:[<c013f552>]    Tainted: P
Jul 10 14:37:18 new kernel: EFLAGS: 00210002   (2.6.7)
Jul 10 14:37:18 new kernel: EIP is at free_pages_bulk+0x23b/0x276
Jul 10 14:37:18 new kernel: eax: 00000001   ebx: c0384ac0   ecx: 
00000000   edx: fff9c256
Jul 10 14:37:18 new kernel: esi: ffffffff   edi: 7ffce12b   ebp: 
d87f1d54   esp: d87f1d0c
Jul 10 14:37:18 new kernel: ds: 007b   es: 007b   ss: 0068
Jul 10 14:37:18 new kernel: Process speaker-test (pid: 12204, 
threadinfo=d87f0000 task=dc4a4a60)
Jul 10 14:37:18 new kernel: Stack: c0384700 c0384ac0 00000001 c038498c 
00000000 c0384ae0 fff9c257 c0384908
Jul 10 14:37:18 new kernel:        00000000 c1000000 c0384908 00200096 
ffffffff d87f1d54 c0116365 c0384700
Jul 10 14:37:18 new kernel:        c1008260 d87f0000 d87f1d84 c013fc28 
c0384700 00000000 c0384a90 00000000
Jul 10 14:37:18 new kernel: Call Trace:
Jul 10 14:37:18 new kernel:  [<c01052ff>] show_stack+0x80/0x96
Jul 10 14:37:18 new kernel:  [<c0105496>] show_registers+0x15f/0x1ae
Jul 10 14:37:18 new kernel:  [<c010563f>] die+0xc1/0x186
Jul 10 14:37:18 new kernel:  [<c0105a55>] do_invalid_op+0xb5/0xb7
Jul 10 14:37:18 new kernel:  [<c0104fa1>] error_code+0x2d/0x38
Jul 10 14:37:18 new kernel:  [<c013fc28>] free_hot_cold_page+0x12d/0x146
Jul 10 14:37:18 new kernel:  [<c01402e1>] __pagevec_free+0x1b/0x24
Jul 10 14:37:18 new kernel:  [<c0149559>] release_pages+0x83/0x25e
Jul 10 14:37:18 new kernel:  [<c015b893>] 
free_pages_and_swap_cache+0x64/0x88
Jul 10 14:37:18 new kernel:  [<c015383a>] exit_mmap+0x209/0x22f
Jul 10 14:37:18 new kernel:  [<c011b98a>] mmput+0x85/0xbf
Jul 10 14:37:18 new kernel:  [<c012124a>] do_exit+0x17d/0x62f
Jul 10 14:37:18 new kernel:  [<c01217be>] do_group_exit+0x3d/0x177
Jul 10 14:37:18 new kernel:  [<c012b118>] get_signal_to_deliver+0x38f/0x574
Jul 10 14:37:18 new kernel:  [<c0104276>] do_signal+0x6c/0xf1
Jul 10 14:37:18 new kernel:  [<c0104336>] do_notify_resume+0x3b/0x3d
Jul 10 14:37:18 new kernel:  [<c0104562>] work_notifysig+0x13/0x15
Jul 10 14:37:18 new kernel:
Jul 10 14:37:18 new kernel: Code: 0f 0b d0 00 71 97 34 c0 e9 0b ff ff ff 
0f 0b c3 00 71 97 34
Jul 10 14:37:18 new kernel:  <6>note: speaker-test[12204] exited with 
preempt_count 3
Jul 10 14:37:18 new kernel: Debug: sleeping function called from invalid 
context at include/linux/rwsem.h:43
Jul 10 14:37:18 new kernel: in_atomic():1, irqs_disabled():0
Jul 10 14:37:18 new kernel:  [<c0105333>] dump_stack+0x1e/0x22
Jul 10 14:37:18 new kernel:  [<c011aee1>] __might_sleep+0xb2/0xd3
Jul 10 14:37:18 new kernel:  [<c011f222>] profile_exit_task+0x22/0x60
Jul 10 14:37:18 new kernel:  [<c0121148>] do_exit+0x7b/0x62f
Jul 10 14:37:18 new kernel:  [<c0105704>] do_divide_error+0x0/0xdd
Jul 10 14:37:18 new kernel:  [<c0105a55>] do_invalid_op+0xb5/0xb7
Jul 10 14:37:18 new kernel:  [<c0104fa1>] error_code+0x2d/0x38
Jul 10 14:37:18 new kernel:  [<c013fc28>] free_hot_cold_page+0x12d/0x146
Jul 10 14:37:18 new kernel:  [<c01402e1>] __pagevec_free+0x1b/0x24
Jul 10 14:37:18 new kernel:  [<c0149559>] release_pages+0x83/0x25e
Jul 10 14:37:18 new kernel:  [<c015b893>] 
free_pages_and_swap_cache+0x64/0x88
Jul 10 14:37:18 new kernel:  [<c015383a>] exit_mmap+0x209/0x22f
Jul 10 14:37:18 new kernel:  [<c011b98a>] mmput+0x85/0xbf
Jul 10 14:37:18 new kernel:  [<c012124a>] do_exit+0x17d/0x62f
Jul 10 14:37:18 new kernel:  [<c01217be>] do_group_exit+0x3d/0x177
Jul 10 14:37:18 new kernel:  [<c012b118>] get_signal_to_deliver+0x38f/0x574
Jul 10 14:37:18 new kernel:  [<c0104276>] do_signal+0x6c/0xf1
Jul 10 14:37:18 new kernel:  [<c0104336>] do_notify_resume+0x3b/0x3d
Jul 10 14:37:18 new kernel:  [<c0104562>] work_notifysig+0x13/0x15


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RE: alsa cvs stability problems.

[fmoraes]

I've also noticed the stability problems with the latest CVS code. The problem goes away on my system (Fedora Core 1, kernel 2.4.22-1.2194.nptl) when I revert the latest changes done to alsa-kernel/core/memalloc.c

Francisco



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Re: alsa cvs stability problems.

[James Courtier-Dutton]

Takashi Iwai wrote:
> At Sat, 10 Jul 2004 19:52:41 +0100,
> James Courtier-Dutton wrote:
> 
>>I am seeing a log to stability problems when using the latest alsa cvs.
> 
> 
> I hope this is fixed now.  The pages are marked as reserved again.
> 
> 
> Takashi
> 
> 

That patch fixed the stability problems, or at least, it has not crashed 
again since.

thanks

James



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