[Xen-users] Xen 4.0.1 and megaraid_sas causes I/O to hang (xen-4 + megasas(DELL 6i RAID) = Reject I/O to offline device)

[Stephan Austermühle <au@xxxxxxx>]

Hello all,

Am 10.10.2010 22:38, schrieb Stephan Austermühle:

> I don't now yet if this is a permanent solution but I tried to fix it by
> repeating the steps from the last time (server is still running after 7
> hours...):

Looks like I have not found a permanent solution. Any comments about the
attached messages?

Here's some more information:

# xm info
host                   : n0008
release                : 2.6.32-5-xen-amd64
version                : #1 SMP Fri Sep 17 22:00:48 UTC 2010
machine                : x86_64
nr_cpus                : 4
nr_nodes               : 1
cores_per_socket       : 4
threads_per_core       : 1
cpu_mhz                : 2400
hw_caps                :
bfebfbff:28100800:00000000:00001b40:0098e3fd:00000000:00000001:00000000
virt_caps              : hvm hvm_directio
total_memory           : 4058
free_memory            : 2221
node_to_cpu            : node0:0-3
node_to_memory         : node0:2221
node_to_dma32_mem      : node0:2221
max_node_id            : 0
xen_major              : 4
xen_minor              : 0
xen_extra              : .1
xen_caps               : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32
hvm-3.0-x86_32p hvm-3.0-x86_64
xen_scheduler          : credit
xen_pagesize           : 4096
platform_params        : virt_start=0xffff800000000000
xen_changeset          : Wed Aug 25 09:23:31 2010 +0100 21326:07ac5459b250
xen_commandline        : placeholder console=vga dom0_mem=512M
cpufreq=xen hpetbroadcast xencons=tty watchdog noreboot iommu=pv
cc_compiler            : gcc version 4.4.5 20100728 (prerelease) (Debian
4.4.4-8)
cc_compile_by          : root
cc_compile_domain      : (none)
cc_compile_date        : Sun Aug 29 14:45:50 CEST 2010
xend_config_format     : 4

# cat /proc/cmdline
placeholder root=/dev/mapper/vg00-lv_root ro quiet
pciback.hide=(0a:00.0) xen-pciback.hide=(0a:00.0)

Best regards,

Stephan

megraid_sas_hang.txt
Description: Text document

smime.p7s
Description: S/MIME Cryptographic Signature

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