Hi Artur, Artur Linhart wrote:
> It also does not hang up the computer completely, it just freezes the > keyboard (also the numlock does not react etc.) and services (for example > concurrent ssh connection to the amchine is no longer usefull), but the > system itself does still something. There come after some minutes of waiting > again and again messages, ending by the following call trace (I hope I made > no mistakes in writing it down from monitor): > Call Trace: > [<....>]? smp_call_function_many+0x191/0x1af > [<....>]? drain_local_pages+0x0/0xd > [<....>]? smp_call_function+0x20/0x24 [...] > containing also following message: > > kernel bug .... ..../source_amd_xen/drivers/scsi/aacraid/aachba.c:2825! [...] > Code: 00 00 c7 46 0c 00 00 00 00 c7 46 10 00 00 00 00 c7 46 14 00 > 00 00 00 c7 46 18 00 00 00 00 e8 10 63 fa ff 83 f8 00 41 89 c6 7d 04 <0f> 0b > eb > fe 75 08 45 31 e4 e9 9c 00 00 00 49 8b 7f 58 48 89 eb > RIP [<....>] aac_build_sgraw+0x51/0x10a [aacraid] > RSP <ffff88003cd998e0> Konrad Wilk wrote: > Based on what Ian analyzed it really looks that we just ran out of DMA > buffers and > the driver didn't try to retry but just bails out. > > We can narrow down who is using so many buffers by using the attached debug > module > that when loaded will print out who is using what buffers if > CONFIG_DMA_API_DEBUG=y is set. Thanks for reporting this and sorry for the long quiet. Can you reproduce this using a sid kernel for the dom0? I think the only packages that should be needed for this test from outside squeeze are the kernel image itself, linux-base, and initramfs-tools. Jonathan -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
