Hi,
I installed Linux 2.2.7 last night; this afternoon, I tried to play an
Audio CD and heard nothing come out of the speakers. This in itself is
not so unusual - it usually happens when I first boot the machine and
sometimes after it has been suspended (APM) for a long time. The
normal cure is to load the sound drivers, and for this I usually run
my "worry" script which writes two .au files to /dev/audio.
This time, however, I received the following message:
$ worry
./worry: /dev/audio: Cannot allocate memory
./worry: /dev/audio: Cannot allocate memory
This bothers me, because I actually have quite a lot of memory available!
$ free -t
total used free shared buffers cached
Mem: 63516 62056 1460 35752 3404 36588
-/+ buffers/cache: 22064 41452
Swap: 260052 2192 257860
Total: 323568 64248 259320
$ worry
./worry: /dev/audio: Cannot allocate memory
./worry: /dev/audio: Cannot allocate memory
$ lsmod
Module Size Used by
sb 33140 0 (autoclean) (unused)
uart401 5968 0 (autoclean) [sb]
sound 57196 0 (autoclean) [sb uart401]
soundcore 2372 6 (autoclean) [sb sound]
nls_iso8859-1 2020 2 (autoclean)
nls_cp437 3548 2 (autoclean)
vfat 11388 2 (autoclean)
fat 25696 2 (autoclean) [vfat]
$ cat /proc/meminfo
total: used: free: shared: buffers: cached:
Mem: 65040384 60850176 4190208 36634624 4767744 33574912
Swap: 266293248 2244608 264048640
MemTotal: 63516 kB
MemFree: 4092 kB
MemShared: 35776 kB
Buffers: 4656 kB
Cached: 32788 kB
SwapTotal: 260052 kB
SwapFree: 257860 kB
Well, I am now listening to U2 so the problem has "gone away". One
other thing, though - this is the output of my message log around the
time of the incident:
May 2 08:16:23 WellHouse pppd[607]: Hangup (SIGHUP)
May 2 08:16:23 WellHouse pppd[607]: Exit.
May 2 14:47:38 WellHouse apmd[105]: Resume after 06:31:05 (-1% 0:01)
May 2 14:49:09 WellHouse kernel: Soundblaster audio driver Copyright (C) by Hannu
Savolainen 1993-1996
May 2 14:49:09 WellHouse kernel: SB 4.13 detected OK (220)
May 2 14:50:00 WellHouse kernel: PPP: ppp line discipline successfully unregistered
You will notice that I was running PPP, and then suspended for
6:31:05. Cross reference this log with my console log:
May 2 01:21:33 WellHouse kernel: PPP BSD Compression module registered
May 2 01:21:33 WellHouse kernel: PPP Deflate Compression module registered
May 2 14:48:34 WellHouse kernel: VFS: Disk change detected on device ide1(22,0)
May 2 14:49:09 WellHouse kernel: Soundblaster audio driver Copyright (C) by Hannu
Savolainen 1993-1996
May 2 14:49:09 WellHouse kernel: SB 4.13 detected OK (220)
May 2 14:49:09 WellHouse kernel: Sound error: Couldn't allocate DMA buffer
May 2 14:49:48 WellHouse last message repeated 2 times
May 2 14:49:48 WellHouse kernel: Sound error: Couldn't allocate DMA buffer
May 2 14:50:00 WellHouse kernel: PPP: ppp line discipline successfully unregistered
So you will see that the PPP module unregistered itself, and now I can
play audio again. So if this isn't a sound problem, maybe there is a
memory leak in the PPP code?
Has anyone else seen unusual results in either PPP or sound?
Cheers,
Chris.
PS, in case it is the sound, here is the sound-section from my .config
file:
#
# Sound
#
CONFIG_SOUND=m
# CONFIG_SOUND_ES1370 is not set
# CONFIG_SOUND_ES1371 is not set
# CONFIG_SOUND_SONICVIBES is not set
# CONFIG_SOUND_MSNDCLAS is not set
# CONFIG_SOUND_MSNDPIN is not set
CONFIG_SOUND_OSS=m
# CONFIG_SOUND_PAS is not set
CONFIG_SOUND_SB=m
CONFIG_SOUND_ADLIB=m
# CONFIG_SOUND_GUS is not set
# CONFIG_SOUND_MPU401 is not set
# CONFIG_SOUND_PSS is not set
# CONFIG_SOUND_MSS is not set
# CONFIG_SOUND_SSCAPE is not set
# CONFIG_SOUND_TRIX is not set
# CONFIG_SOUND_MAD16 is not set
# CONFIG_SOUND_WAVEFRONT is not set
# CONFIG_SOUND_CS4232 is not set
# CONFIG_SOUND_OPL3SA2 is not set
# CONFIG_SOUND_MAUI is not set
# CONFIG_SOUND_SGALAXY is not set
# CONFIG_SOUND_AD1816 is not set
# CONFIG_SOUND_OPL3SA1 is not set
CONFIG_SOUND_SOFTOSS=m
CONFIG_SOUND_YM3812=m
CONFIG_SOUND_VMIDI=m
# CONFIG_SOUND_UART6850 is not set
If there's anything else you might need, then let me know.
