At Mon, 20 Oct 2003 15:48:55 +0800, Gou Zhuang wrote: > > I'm running kernel 2.4.22 and alsa-0.9.7c on a Dell laptop. I have problem on > suspend/resume when alsa modules loaded. I have done a few testings, below is my > findings: > > If the snd-pcm-oss module is in use(by arts sound server) at the time of suspend, > kernel > oops upon resuming and X server crashes. It has no problem when snd-pcm-oss is not > in use( > released by arts). 0.9.6 has the same behavior. My sound card is on-board intel8x0. > > I searched the mail archive and didn't find any similar cases. Could anybody look > into > this problem?
i don't see any obvious bugs in the resume code, and i thought it worked fine once on my test machine. could you check at which funciton the oops occurs, e.g. simply by puttig debug printk at each entry point? according to ksymoops, it's in snd_intel8x0_resume() (i.e. intel8x0_resume()). this could be either in snd_intel8x0_chip_init() or snd_ac97_resume(). in the latter function, there is no sleep or no wakeup, so it's likely in the former one. Takashi > > Below is the decoded oops(on kernel 2.4.22 with alsa-0.9.7c loaded): > -------------------------------------------------------------- > ksymoops 2.4.9 on i686 2.4.22. Options used > -V (default) > -k /proc/ksyms (default) > -l /proc/modules (default) > -o /lib/modules/2.4.22/ (default) > -m /boot/System.map-2.4.22 (specified) > > Unable to handle kernel paging request at virtual address fffffffc > c0116d70 > *pde = 00001063 > Oops: 0000 > CPU: 0 > EIP: 0010:[<c0116d70>] Not tainted > Using defaults from ksymoops -t elf32-i386 -a i386 > EFLAGS: 00010007 > eax: 00000000 ebx: 00000000 ecx: 00000000 edx: 00000000 > esi: d7ec2fb0 edi: 00000003 ebp: d5307ee4 esp: d5307ec8 > ds: 0018 es: 0018 ss: 0018 > Process X (pid: 851, stackpage=d5307000) > Stack: 00000000 00000000 00000001 00000282 d7fc7808 d7fc9eb4 d7fc9ea0 00000000 > d8bee512 d754a000 c021dc06 d7fc7800 c021dd3b d7fc7800 d7fc9ea0 00000003 > 00000000 c021de83 d7fc9ea0 c142d2a0 c021dee5 c142d420 c0127e52 c142d2a0 > Call Trace: [<d8bee512>] [<c021dc06>] [<c021dd3b>] [<c021de83>] [<c021dee5>] > [<c0127e52>] [<c0127f54>] [<c0113a43>] [<c011415c>] [<c0149b39>] [<c010740f>] > Code: 8b 4b fc 8b 01 85 c7 75 19 8b 02 89 d3 89 c2 0f 18 00 39 f3 > > > >>EIP; c0116d70 <__wake_up+30/80> <===== > > >>esi; d7ec2fb0 <_end+17b53f8c/1880603c> > >>ebp; d5307ee4 <_end+14f98ec0/1880603c> > >>esp; d5307ec8 <_end+14f98ea4/1880603c> > > Trace; d8bee512 <[snd-intel8x0]snd_intel8x0_resume+12/20> > Trace; c021dc06 <pci_pm_resume_device+26/30> > Trace; c021dd3b <pci_pm_resume_bus+2b/70> > Trace; c021de83 <pci_pm_resume+33/50> > Trace; c021dee5 <pci_pm_callback+45/50> > Trace; c0127e52 <pm_send+72/a0> > Trace; c0127f54 <pm_send_all+74/b0> > Trace; c0113a43 <suspend+e3/120> > Trace; c011415c <do_ioctl+10c/180> > Trace; c0149b39 <sys_ioctl+c9/250> > Trace; c010740f <system_call+33/38> > > Code; c0116d70 <__wake_up+30/80> > 00000000 <_EIP>: > Code; c0116d70 <__wake_up+30/80> <===== > 0: 8b 4b fc mov 0xfffffffc(%ebx),%ecx <===== > Code; c0116d73 <__wake_up+33/80> > 3: 8b 01 mov (%ecx),%eax > Code; c0116d75 <__wake_up+35/80> > 5: 85 c7 test %eax,%edi > Code; c0116d77 <__wake_up+37/80> > 7: 75 19 jne 22 <_EIP+0x22> > Code; c0116d79 <__wake_up+39/80> > 9: 8b 02 mov (%edx),%eax > Code; c0116d7b <__wake_up+3b/80> > b: 89 d3 mov %edx,%ebx > Code; c0116d7d <__wake_up+3d/80> > d: 89 c2 mov %eax,%edx > Code; c0116d7f <__wake_up+3f/80> > f: 0f 18 00 prefetchnta (%eax) > Code; c0116d82 <__wake_up+42/80> > 12: 39 f3 cmp %esi,%ebx > > -------------------------------------------------------------- > > This is the list of modules: > Module Size Used by Not tainted > snd-pcm-oss 39364 1 > snd-mixer-oss 13720 1 [snd-pcm-oss] > keybdev 2112 0 (unused) > mousedev 4404 1 > hid 15624 0 (unused) > input 3328 0 [keybdev mousedev hid] > uhci 25968 0 (unused) > usbcore 62624 1 [hid uhci] > snd-intel8x0 19460 2 > snd-pcm 61536 0 [snd-pcm-oss snd-intel8x0] > snd-timer 14628 0 [snd-pcm] > snd-ac97-codec 42456 0 [snd-intel8x0] > snd-page-alloc 6484 0 [snd-intel8x0 snd-pcm] > snd-mpu401-uart 3456 0 [snd-intel8x0] > snd-rawmidi 13536 0 [snd-mpu401-uart] > snd-seq-device 4288 0 [snd-rawmidi] > snd 29956 0 [snd-pcm-oss snd-mixer-oss snd-intel8x0 snd-pcm > snd-timer > snd-ac97-codec snd-mpu401-uart snd-rawmidi snd-seq-device] > soundcore 3588 4 [snd] > 3c59x 27984 1 > yenta_socket 10816 0 > pcmcia_core 43104 0 [yenta_socket] > nls_cp936 119964 1 (autoclean) > nls_gb2312 448 1 (autoclean) > > > > ------------------------------------------------------- > This SF.net email sponsored by: Enterprise Linux Forum Conference & Expo > The Event For Linux Datacenter Solutions & Strategies in The Enterprise > Linux in the Boardroom; in the Front Office; & in the Server Room > http://www.enterpriselinuxforum.com > _______________________________________________ > Alsa-devel mailing list > [EMAIL PROTECTED] > https://lists.sourceforge.net/lists/listinfo/alsa-devel > ------------------------------------------------------- This SF.net email sponsored by: Enterprise Linux Forum Conference & Expo The Event For Linux Datacenter Solutions & Strategies in The Enterprise Linux in the Boardroom; in the Front Office; & in the Server Room http://www.enterpriselinuxforum.com _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
