Re: pktcddvd -> immediate crash

[Soeren Sonnenburg <kernel@nn7.de>]

On Tue, 2005-04-05 at 18:04 +0100, Nix wrote:
> On 5 Apr 2005, Soeren Sonnenburg whispered secretively:
> > I wonder whether anyone could use the pktcddvd device without killing
> > random jobs (due to sudden out of memory or better memory leaks in
> > pktcddvd) and finally a complete freeze of the machine ?
> 
> I'm using it without difficulty.
> 
> > To reproduce just create an udf filesystem on some dvdrw, mount it rw
> > and copy some large file to the mount point.
> 
> Well, I copied a 502Mb file to a CD/RW yesterday as part of my
> regular backups. No problems.
>
> I think we need more details (a .config would be nice, and preferably
> a cat of /proc/slabinfo and a dmesg dump when the problem starts).

.config is attached (gzipped) and dmesg see below. unfortunately I
cannot provide a cat of /proc/slabinfo after the problem started...

however this machine has like 1.5G mem 2G swap and was doing no serious
stuff, i.e. no high load no high memory requirements (I guess <500M)

Soeren

pktcdvd: inserted media is DVD+RW
pktcdvd: write speed 2822kB/s
pktcdvd: 4590208kB available on disc
UDF-fs INFO UDF 0.9.8.1 (2004/29/09) Mounting volume 'LinuxUDF', timestamp 2005/03/27 18:49 (103c)
rtc: lost some interrupts at 1024Hz.
rtc: lost some interrupts at 1024Hz.
rtc: lost some interrupts at 1024Hz.
rtc: lost some interrupts at 1024Hz.
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
Normal per-cpu:
cpu 0 hot: low 32, high 96, batch 16
cpu 0 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

Free pages:       28944kB (896kB HighMem)
Active:46742 inactive:158822 dirty:666 writeback:114320 unstable:0 free:7236 slab:18648 mapped:44732 pagetables:845
DMA free:3960kB min:584kB low:728kB high:876kB active:1996kB inactive:1104kB present:16384kB pages_scanned:3747 all_unreclaimable? yes
lowmem_reserve[]: 0 880 1519
Normal free:24088kB min:32180kB low:40224kB high:48268kB active:5780kB inactive:167540kB present:901120kB pages_scanned:29844 all_unreclaimable? no
lowmem_reserve[]: 0 0 5119
HighMem free:896kB min:512kB low:640kB high:768kB active:179192kB inactive:466644kB present:655344kB pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 0 0
DMA: 0*4kB 1*8kB 1*16kB 1*32kB 1*64kB 0*128kB 1*256kB 1*512kB 1*1024kB 1*2048kB 0*4096kB = 3960kB
Normal: 0*4kB 1*8kB 1*16kB 0*32kB 0*64kB 0*128kB 2*256kB 0*512kB 1*1024kB 1*2048kB 5*4096kB = 24088kB
HighMem: 62*4kB 7*8kB 5*16kB 0*32kB 0*64kB 0*128kB 0*256kB 1*512kB 0*1024kB 0*2048kB 0*4096kB = 896kB
Swap cache: add 35451, delete 35184, find 371/482, race 0+0
Free swap  = 1838852kB
Total swap = 1975976kB
Out of Memory: Killed process 18330 (cat).
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
Normal per-cpu:
cpu 0 hot: low 32, high 96, batch 16
cpu 0 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

Free pages:       35628kB (832kB HighMem)
Active:51650 inactive:151150 dirty:48 writeback:112458 unstable:0 free:8907 slab:18596 mapped:45563 pagetables:830
DMA free:3996kB min:584kB low:728kB high:876kB active:0kB inactive:1108kB present:16384kB pages_scanned:1587 all_unreclaimable? yes
lowmem_reserve[]: 0 880 1519
Normal free:30800kB min:32180kB low:40224kB high:48268kB active:16732kB inactive:147212kB present:901120kB pages_scanned:342208 all_unreclaimable? yes
lowmem_reserve[]: 0 0 5119
HighMem free:832kB min:512kB low:640kB high:768kB active:189868kB inactive:456280kB present:655344kB pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 0 0
DMA: 9*4kB 1*8kB 1*16kB 1*32kB 1*64kB 0*128kB 1*256kB 1*512kB 1*1024kB 1*2048kB 0*4096kB = 3996kB
Normal: 284*4kB 696*8kB 2*16kB 0*32kB 0*64kB 0*128kB 2*256kB 0*512kB 1*1024kB 1*2048kB 5*4096kB = 30800kB
HighMem: 0*4kB 38*8kB 1*16kB 0*32kB 0*64kB 0*128kB 0*256kB 1*512kB 0*1024kB 0*2048kB 0*4096kB = 832kB
Swap cache: add 38465, delete 35875, find 1174/1602, race 0+0
Free swap  = 1837744kB
Total swap = 1975976kB
Out of Memory: Killed process 18326 (cat).
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
Normal per-cpu:
cpu 0 hot: low 32, high 96, batch 16
cpu 0 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

Free pages:       35632kB (832kB HighMem)
Active:51606 inactive:151149 dirty:48 writeback:112458 unstable:0 free:8908 slab:18596 mapped:45514 pagetables:826
DMA free:4000kB min:584kB low:728kB high:876kB active:4kB inactive:1104kB present:16384kB pages_scanned:495 all_unreclaimable? no
lowmem_reserve[]: 0 880 1519
Normal free:30800kB min:32180kB low:40224kB high:48268kB active:16732kB inactive:147212kB present:901120kB pages_scanned:342208 all_unreclaimable? yes
lowmem_reserve[]: 0 0 5119
HighMem free:832kB min:512kB low:640kB high:768kB active:189688kB inactive:456280kB present:655344kB pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 0 0
DMA: 10*4kB 1*8kB 1*16kB 1*32kB 1*64kB 0*128kB 1*256kB 1*512kB 1*1024kB 1*2048kB 0*4096kB = 4000kB
Normal: 284*4kB 696*8kB 2*16kB 0*32kB 0*64kB 0*128kB 2*256kB 0*512kB 1*1024kB 1*2048kB 5*4096kB = 30800kB
HighMem: 0*4kB 38*8kB 1*16kB 0*32kB 0*64kB 0*128kB 0*256kB 1*512kB 0*1024kB 0*2048kB 0*4096kB = 832kB
Swap cache: add 38465, delete 35875, find 1174/1602, race 0+0
Free swap  = 1837744kB
Total swap = 1975976kB
Out of Memory: Killed process 18327 (vdr).


-- 
Sometimes, there's a moment as you're waking, when you become aware of
the real world around you, but you're still dreaming.

Attachment: config.gz
Description: GNU Zip compressed data