Thanks for your report and analysis, Janusz!
On 09/19/2015 01:48 AM, Janusz wrote:
W dniu 18.09.2015 o 12:07, Laszlo Ersek pisze:
On 09/18/15 11:37, Janusz wrote:
Hello,
I am writting about this patch that was posted by Xiao:
http://www.spinics.net/lists/kvm/msg119044.html and this:
http://www.spinics.net/lists/kvm/msg119045.html
I've tested both kernel 4.2 and 4.3 and problem still exists when I use
OVMF - 100% cpu usage, VM resetting, while it works properly on kernel 4.1
My last (still current) request remains "please quirk it". See the end
of <http://thread.gmane.org/gmane.linux.kernel/1952205/focus=1996025>,
and other messages in that subthread.
when I saw message from Xiao that he posted patch for it and have seen
this code in kernel sources (landed in 4.2-rc3) I though that the status
is not "please quirk it" anymore
I haven't been following kernel development, so maybe the quirk has not
happened. No clue.
... "VM resetting" looks something different though; I've been under the
impression that the pedantic (=unquirked) MTRR configuration didn't
impact other things than speed. Janusz, maybe you could contribute with
a host kernel bisection for the VM reset symptom.
To be more exact - VM is mostly not starting or its starting after long
time and then resetting it self at random time (but before system boots)
or gets very high cpu usage or sometimes boots without problem (the
least possible case scenario). When I start VM with -vga std, not with
my gpu passthrough - in most of the time I get this:
http://pastebin.com/raw.php?i=CKrNsueS
It seems the behaviour is different with previous (previously, it can boot
but slowly), right?
The URL cat not be accessed, i do not know it's your web server issue or
our networking issue.
Result of bisect:
git bisect start
# bad: [d770e558e21961ad6cfdf0ff7df0eb5d7d4f0754] Linux 4.2-rc1
git bisect bad d770e558e21961ad6cfdf0ff7df0eb5d7d4f0754
# good: [b953c0d234bc72e8489d3bf51a276c5c4ec85345] Linux 4.1
git bisect good b953c0d234bc72e8489d3bf51a276c5c4ec85345
# good: [4570a37169d4b44d316f40b2ccc681dc93fedc7b] Merge tag
'sound-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
git bisect good 4570a37169d4b44d316f40b2ccc681dc93fedc7b
# good: [8d7804a2f03dbd34940fcb426450c730adf29dae] Merge tag
'driver-core-4.2-rc1' of
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
git bisect good 8d7804a2f03dbd34940fcb426450c730adf29dae
# bad: [78c10e556ed904d5bfbd71e9cadd8ce8f25d6982] Merge branch
'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
git bisect bad 78c10e556ed904d5bfbd71e9cadd8ce8f25d6982
# good: [623f0e137c0fedb81bbf3d88be4ed300eee163da] Staging: lustre: fix
space before and after comma in dt_object.c
git bisect good 623f0e137c0fedb81bbf3d88be4ed300eee163da
# bad: [8c7febe83915332276cab49e89f6580bb963fb9a] Merge tag
'tty-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
git bisect bad 8c7febe83915332276cab49e89f6580bb963fb9a
# good: [bcf5b92d9bbf0b7683199615f0f184e89fa486bc] staging: rtl8192e:
Remove rt_hi_throughput::ChnkOp
git bisect good bcf5b92d9bbf0b7683199615f0f184e89fa486bc
# good: [71eec4836b834b992e0cefeefc8b85efe4cb185b] drivers: PL011: allow
avoiding UART enabling/disabling
git bisect good 71eec4836b834b992e0cefeefc8b85efe4cb185b
# good: [49ef9c850154756cf2fbc50fd3804c44675d4633] staging: comedi:
me4000: rename 'thisboard' variables
git bisect good 49ef9c850154756cf2fbc50fd3804c44675d4633
# good: [2a4462418af771ef9f1f1d1532bcbb8799df842d] tty/serial: kill off
set_irq_flags usage
git bisect good 2a4462418af771ef9f1f1d1532bcbb8799df842d
# good: [6d43b0f482561ab421a91ebf59a51192d66cf8a7] Staging: sm750fb:
ddk750_swi2c.c: Insert spaces around operators
git bisect good 6d43b0f482561ab421a91ebf59a51192d66cf8a7
# good: [84e1eb83d0b9e0969a59b6848d718eaf71e98fcb] MAINTAINERS: tty: add
serial docs directory
git bisect good 84e1eb83d0b9e0969a59b6848d718eaf71e98fcb
# good: [53a20e9e378ecd52f0afa4b60f8f8c81b6f97c27] staging: wilc1000:
disable driver due to build warnings
git bisect good 53a20e9e378ecd52f0afa4b60f8f8c81b6f97c27
# good: [71206b9f8120eb513c621d4f31906577bb658df3] Doc:
serial-rs485.txt: update RS485 driver interface
git bisect good 71206b9f8120eb513c621d4f31906577bb658df3
# bad: [23908db413eccd77084b09c9b0a4451dfb0524c0] Merge tag
'staging-4.2-rc1' of
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
git bisect bad 23908db413eccd77084b09c9b0a4451dfb0524c0
# first bad commit: [23908db413eccd77084b09c9b0a4451dfb0524c0] Merge tag
'staging-4.2-rc1' of
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
The bad commit is:
commit 23908db413eccd77084b09c9b0a4451dfb0524c0
Merge: 8d7804a 53a20e9
Author: Linus Torvalds <torva...@linux-foundation.org>
Date: Fri Jun 26 15:46:08 2015 -0700
Hard to find which one causes the real issue... but i will try to reproduce
it, could you please share your command line?
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