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xen-devel
Re: [Xen-devel] xen-2.0 20040923 and previous: rpm crash in xenU
I'd certainly recommend upgrading to a more recent xen2.0 release
and trying to repeat.
You're not sending large amounts of output from dom0 to a serial
line are you? I've observed this causing time (in all domains) to
be somewhat jerky, but this is to be expected as the serial line
is intended only for synchronous debug output.
Are dom0 and domU both on the same CPU? I presume you're using 2.6?
Ian
> I have previously mentioned a floating point exception in rpm which
> seemed at one point to be connected with block-device handling in xenU
> systems, as both problems occurred at the same time. As I now get only
> the rpm floating point exception (sporadically), I have examined it further:
>
> ... # strace rpm
>
> [lots of strace output omitted]
>
> gettimeofday({1096021305, 741150}, NULL) = 0
> nanosleep({0, 20000000}, {1076798912, 1075195904}) = 0
> gettimeofday({1096021305, 741150}, NULL) = 0
> --- SIGFPE (Floating point exception) @ 0 (0) ---
> +++ killed by SIGFPE +++
>
> Does anyone else have problems of this kind? It may of course be a bug
> in rpm but I would then expect it to appear in xen0 as well. This did
> happen,but only in xen2.0-20040909 and xen2.0-20040910.
>
> So the implication (to me) is that there is a problem which sometimes
> causes rpm to crash in gettimeofday, which did affect both xen0 and xenU
> in xen2.0-20040909 and xen2.0-20040910, and which now only affects xenU.
>
> Any ideas?
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