Displaying 5 results from an estimated 5 matches for "mces".
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2012 Nov 21
3
Reentrant NMIs, MCEs and interrupt stack tables.
Hello,
While working on a fix for the rare-but-possible problem of reentrant
NMIs and MCEs, I have discovered that it is sadly possible to generate
fake NMIs and MCEs which will run the relevant handlers on the relevant
stacks, without invoking any of the other CPU logic for these special
interrupts.
A fake NMI can be generated by a processor in PIC mode as opposed to
Virtual wire mode,...
2007 Aug 27
3
[PATCH] Limit MCG Cap
Intercept guest reads of MSR_IA32_MCG_CAP and limit the number of memory banks reported to one.
This prevents us from trying to read status of non-existent banks when migrated to a machine
with fewer banks.
Signed-off-by: Ben Guthro
Signed-off-by: David Lively <dlively@virtualiron.com>
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Xen-devel@lists.xensource.com
2010 Jun 22
4
New kernel causes hardware error?
I have recently upgraded to 2.6.18-194.3.1.el5 and within several days
the machine crashed with the following error (repeating in mcelog):
MCE 0
HARDWARE ERROR. This is *NOT* a software problem!
Please contact your hardware vendor
CPU 2 BANK 8 MISC 41
MCG status:
MCi status:
Error overflow
Uncorrected error
MCi_MISC register valid
Processor context corrupt
MCA: MEMORY CONTROLLER AC_CHANNEL0_ERR
2008 Jun 20
7
Kernel panic - not syncing: CPU context corrupt
Hi,
Is there someone on this mailing list who could/want help me figure out
this issue? We do not know where to look to solve this.
--- Description ---
This is a brand new server, which has been tested for days with FreeBSD
in our office, and a few days with Windows on the site of our hardware
distributor. Now customer wants CentOS, which we installed, but after
few days we get a kernel panic.
2012 Dec 12
7
[PATCH V5] x86/kexec: Change NMI and MCE handling on kexec path
...w
NMI to re-interrupt us later if NMIs get unlatched. Because of the
call to __stop_this_cpu(), we have to hand craft self_nmi() to be
safe from General Protection Faults.
* Fall into infinite loop.
machine_kexec() will:
* Swap the MCE handlers to be a nop.
We cannot prevent MCEs from being delivered when we pass off to the
crash kernel, and the less Xen context is being touched the better.
* Explicitly enable NMIs.
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
--
Changes since v4:
* Change stale comments, spelling corrections and coding style c...