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Subjecthde: dma_timer_expiry: dma status == 0x24
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I'm having some pretty major stability issues with 2.6.5 right now.

The error consistently occurs when backing up using rsnapshot/rsync
to backup partitions. It is rather reproducible.
This happens both with rsync in daemon mode, as well as rsync over
NFS. Happened once after a 450mb upload through
a customer's xml-rpc application, which would have been written
through a webserver, onto an NFS partition.

The only useful log messages I've ever gotten during a crash, only
going to the console, are :

hde: dma_timer_expiry: dma status == 0x24


When the crash occurs, the server responds to pings, and tcp sockets
remain open.

My operating environment is:

Hardware:

HP DL145 G2, Single & Dual Opteron 246s
Dual 80gb Maxtor drives or Dual 400gb Western Digital drives

Software/Configuration

SLES 9 SP2 x86_64
Kernel 2.6.5-7.201-smp
boot options: append = "resume=/dev/rootvg/swaplv selinux=0
load_ramdisk=1 acpi=off console=tty0 console=ttyS2,57600 acpi=off
splash=silent elevator=cfq"
- or -
boot options: append = "resume=/dev/rootvg/swaplv selinux=0
load_ramdisk=1 acpi=off console=tty0 console=ttyS2,57600 apm=off
splash=silent elevator=cfq insmod=bcm5700"
All partitions, except for /boot, and swap, are reiserfs, on top of
lvm2, on top of software raid1.

Kernel modules:
sg 51128 0
sr_mod 26788 0
ipv6 317432 23
af_packet 33676 2
dm_snapshot 25016 0
bcm5700 157660 0
sata_nv 18564 0
ata_piix 19204 0
libata 59656 2 sata_nv,ata_piix
dm_mod 69344 11 dm_snapshot
raid1 24704 1
reiserfs 264816 8
sd_mod 30208 0
scsi_mod 144128 4 sg,sr_mod,libata,sd_mod

Misc related software:
rsync-2.6.2-8.14
rsnapshot-1.2.1-1
bcm5700-8.3.13a-1 (from hp's website)


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