Burning audio CD's is totally broken under 2.6.8.1.

Burning audio CD's is totally broken under 2.6.8.1.

[Justin Piszcz]

Using: cdrtools-2.01a38-pre
User: root
Memory In My Box: 2GB
Swap: 4GB


Free pages:      716208kB (712448kB HighMem)
Active:92966 inactive:21940 dirty:3 writeback:0 unstable:0 free:179052 
slab:6007
  mapped:74076 pagetables:999
DMA free:1904kB min:16kB low:32kB high:48kB active:0kB inactive:0kB 
present:1638
4kB
protections[]: 8 476 732
Normal free:1856kB min:936kB low:1872kB high:2808kB active:12kB 
inactive:244kB p
resent:901120kB
protections[]: 0 468 724
HighMem free:712448kB min:512kB low:1024kB high:1536kB active:371852kB 
inactive:
87580kB present:1179584kB
protections[]: 0 0 256
DMA: 2*4kB 1*8kB 0*16kB 1*32kB 1*64kB 0*128kB 1*256kB 1*512kB 1*1024kB 
0*2048kB
0*4096kB = 1904kB
Normal: 160*4kB 14*8kB 1*16kB 2*32kB 0*64kB 0*128kB 0*256kB 2*512kB 
0*1024kB 0*2
048kB 0*4096kB = 1856kB
HighMem: 5592*4kB 2490*8kB 719*16kB 1407*32kB 1240*64kB 612*128kB 
303*256kB 149*
512kB 93*1024kB 55*2048kB 23*4096kB = 712448kB
Swap cache: add 12456, delete 11114, find 1712/2078, race 0+0
Out of Memory: Killed process 737 (xchats).
Out of Memory: Killed process 739 (xchats).
Out of Memory: Killed process 740 (xchats).
oom-killer: gfp_mask=0xd0
DMA per-cpu:
cpu 0 hot: low 2, high 6, batch 1
cpu 0 cold: low 0, high 2, batch 1
cpu 1 hot: low 2, high 6, batch 1
cpu 1 cold: low 0, high 2, batch 1
Normal per-cpu:
cpu 0 hot: low 32, high 96, batch 16
cpu 0 cold: low 0, high 32, batch 16
cpu 1 hot: low 32, high 96, batch 16
cpu 1 cold: low 0, high 32, batch 16
HighMem per-cpu:
cpu 0 hot: low 32, high 96, batch 16
cpu 0 cold: low 0, high 32, batch 16
cpu 1 hot: low 32, high 96, batch 16
cpu 1 cold: low 0, high 32, batch 16

Free pages:      797332kB (793536kB HighMem)
Active:91450 inactive:3306 dirty:0 writeback:0 unstable:0 free:199333 
slab:5949
mapped:72724 pagetables:995
DMA free:1908kB min:16kB low:32kB high:48kB active:0kB inactive:16kB 
present:163
84kB
protections[]: 8 476 732
Normal free:1888kB min:936kB low:1872kB high:2808kB active:336kB 
inactive:84kB p
resent:901120kB
protections[]: 0 468 724
HighMem free:793536kB min:512kB low:1024kB high:1536kB active:365464kB 
inactive:
13124kB present:1179584kB
protections[]: 0 0 256
DMA: 3*4kB 1*8kB 0*16kB 1*32kB 1*64kB 0*128kB 1*256kB 1*512kB 1*1024kB 
0*2048kB
0*4096kB = 1908kB
Normal: 156*4kB 18*8kB 2*16kB 2*32kB 0*64kB 0*128kB 0*256kB 2*512kB 
0*1024kB 0*2
048kB 0*4096kB = 1888kB
HighMem: 5238*4kB 2595*8kB 797*16kB 1448*32kB 1258*64kB 623*128kB 
308*256kB 150*
512kB 92*1024kB 54*2048kB 42*4096kB = 793536kB
Swap cache: add 12583, delete 11169, find 1927/2319, race 0+0
Out of Memory: Killed process 716 (xchatl).
Out of Memory: Killed process 718 (xchatl).
Out of Memory: Killed process 719 (xchatl).

Re: Burning audio CD's is totally broken under 2.6.8.1.

[Con Kolivas]

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Justin Piszcz wrote:
> Out of Memory: Killed process 737 (xchats).

Known issue:
http://marc.theaimsgroup.com/?l=linux-kernel&m=109309119620622&w=2

Cheers,
Con

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Re: Burning audio CD's is totally broken under 2.6.8.1.

[Justin Piszcz]

Ahh, thanks!

On Sat, 28 Aug 2004, Con Kolivas wrote:

> Justin Piszcz wrote:
>> Out of Memory: Killed process 737 (xchats).
>
> Known issue:
> http://marc.theaimsgroup.com/?l=linux-kernel&m=109309119620622&w=2
>
> Cheers,
> Con
>

Re: Burning audio CD's is totally broken under 2.6.8.1.

[Ed Sweetman]

I went to linux-2.6.8-rc1-ck6 when i found this problem to exist in 
2.6.7 and patches to the kernel and the problem went away.  But I was 
told it had nothing t odo with the ck6 patchset as it didn't touch the 
area that was effected (as i was told anyway).  

I've just upgraded to 2.6.9-rc1-mm1 (with nick's patch and mm's patches 
backed out as he suggested to do).  Now the kernel does not leak memory, 
which it did with vanilla 2.6.9-rc1. 

Audio writing however doesn't seem to be using dma. I get heavy io 
related cpu usage when burning the cd that brings write speed and system 
responsiveness down significantly. This should not be  obviously and i 
was wondering if that had something to do with why the mem leak no 
longer exists or if it's something else entirely separate.  Note, in ck6 
audio writing was fine and did not exibit this non-dma-like behavior and 
no configuration changes were made between versions. DMA is detected and 
enabled for the drive in data mode. 





Con Kolivas wrote:

> Justin Piszcz wrote:
>
>> Out of Memory: Killed process 737 (xchats).
>
>
> Known issue:
> http://marc.theaimsgroup.com/?l=linux-kernel&m=109309119620622&w=2
>
> Cheers,
> Con