I can reliably oops the 2.6.24-server kernel with my AAR-2410SA in
4x500GB RAID 1+0 mode, any real IO for instance via NFS or iSCSI will
cause the oops. Increasing the swiotlb causes the system to be
unbootable and results in almost instant oops. I built a vanilla
2.6.26.2 kernel and experienced the same error. I have another box
running feisty and 2.6.20-16-server in RAID 5 with lots of consistent IO
and never experience a problem. Below is the lspci -vv output for the
card and attached is the most recent trace with linux-image-debug-
server, I'll now also try with -generic
02:02.0 RAID bus controller: Adaptec AAC-RAID (rev 01)
Subsystem: Adaptec AAR-2410SA PCI SATA 4ch (Jaguar II)
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=slow >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 64 (250ns min, 250ns max), Cache Line Size: 32 bytes
Interrupt: pin A routed to IRQ 28
Region 0: Memory at e8000000 (32-bit, prefetchable) [size=64M]
Expansion ROM at ff6e0000 [disabled] [size=32K]
Capabilities: [80] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
** Attachment added: "oops trace"
http://launchpadlibrarian.net/16839455/aacraid_trace.txt
--
Xen AACRaid kernel panic
https://bugs.launchpad.net/bugs/232017
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