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xen-users
RE: [Xen-users] gplpv 0.9.11-pre10 BSODs
>
> I stress tested it during a few days and performance were ok. I have
> noticed that it works very poorly when using weird block size, but
well,
> it is more than enough for normal use anyway.
Disk performance will do that. Linux requires that blocks are aligned to
a 512 byte boundary while Windows has no such requirement, and scsiport
(windows scsi interface) has some fairly harsh restrictions about what
you can do about it.
> So here is my issue : since it was performing ok, I wanted to give it
a
> try on a non mission critical app (a few users rdesktoping on a ms
> access front end connecting through odbc to a postgres database).
> Performance are ok and user experience is quite positive.
>
> However about once per day, I get a BSOD that not only freeze the
> windows domU, but also make the dom0 unusable (ie if I try to xm
create
> it just hang). The BSOD says (French localised screenshot attached) :
>
> DRIVER_IRQL_NOT_LESS_OR_EQUAL
>
> *** STOP : 0x000000D1 (0x00CA0B2C,0x000000FF,0x00000001,0x808877FA)
>
> I have not found a scenario for reproducing this error, actually it
just
> happen sometime in the day. It is not load related because the stress
> test where much heavier on ressources and never produced a BSOD.
>
> Is there any config file parameters that I should be carefull about ?
(I
> already removed the ioemu flag from the network card). Any advice or
> hint to get this Windows behaving nicely?
>
This should not happen no matter what configuration parameters you
specify.
0xD1 means that either the memory address is invalid, or that memory
that was swapped out was accessed while a spinlock was held or
something.
That second parameter being 0xFF seems really strange though... it
should be a maximum of 0x1F (31) under x32 and a maximum of 0x0F (15)
under x64.
Can you please turn on the driver verifier?
Run verifier.exe from start->run
Select 'Create custom settings' then Next
Select 'Select individual settings from a full list' then Next
Tick all but the last 3 options then Next
Select 'Select driver names from a list' then Next
Tick all the xen drivers (down the bottom of the list) then Finish
That should cause a BSoD as soon as the drivers do something that
_could_ cause a crash, and report it in a more useful way, rather than
waiting until the drivers _do_ something that causes a crash
Thanks
James
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