Re: XP machine freeze

[Brad Campbell <lists2009@fnarfbargle.com>]

On 31/03/15 05:11, Paolo Bonzini wrote:
>
>
> On 22/03/2015 16:31, Brad Campbell wrote:
>>
>>
>> No help I'm afraid, but at least I can conclusively say that 3.16 is
>> good, and 3.17 is bad.
>
> Can you try more specifically around the first KVM pull request?  That
> would be between c9b88e958182 (presumed good) and 8533ce727188 (presumed
> bad)?
>


G'day Paolo,

I can and will. Right now I'm toward the end of the bisect run I 
detailed in my previous e-mail, however disturbingly git bisect 
visualize shows no kvm commits at all. I'm beginning to think that 
something non-deterministic is just making this easier or harder to hit. 
Bad kernels usually go bad in a day at most, good kernels I've been 
leaving for up to 5 days.

Here's where the log is at right now. visualize shows 68 commits and I 
can't see any of them being even remotely related to kvm.

brad@srv:/raid10/src/linux$ git bisect log
git bisect start
# good: [19583ca584d6f574384e17fe7613dfaeadcdc4a6] Linux 3.16
git bisect good 19583ca584d6f574384e17fe7613dfaeadcdc4a6
# bad: [bfe01a5ba2490f299e1d2d5508cbbbadd897bbe9] Linux 3.17
git bisect bad bfe01a5ba2490f299e1d2d5508cbbbadd897bbe9
# good: [f2d7e4d4398092d14fb039cb4d38e502d3f019ee] checkpatch: add 
fix_insert_line and fix_delete_line helpers
git bisect good f2d7e4d4398092d14fb039cb4d38e502d3f019ee
# good: [c309bfa9b481e7dbd3e1ab819271bf3009f44859] Merge tag 
'for-linus-20140808' of git://git.infradead.org/linux-mtd
git bisect good c309bfa9b481e7dbd3e1ab819271bf3009f44859
# bad: [433ab34d26e29d0f036c3f514a09ae96f973d8c5] Merge 
git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
git bisect bad 433ab34d26e29d0f036c3f514a09ae96f973d8c5
# bad: [d27c0d90184a13e9e9f28c38e84f889a259f6b5f] Merge branch 
'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
git bisect bad d27c0d90184a13e9e9f28c38e84f889a259f6b5f
# bad: [913847586290d5de22659e2a6195d91ff24d5aa6] Merge branch 
'linux-3.17' of git://anongit.freedesktop.org/git/nouveau/linux-2.6
git bisect bad 913847586290d5de22659e2a6195d91ff24d5aa6
# good: [d1e458fe671baf1e60afafc88bda090202a412f1] svcrdma: remove 
rdma_create_qp() failure recovery logic
git bisect good d1e458fe671baf1e60afafc88bda090202a412f1
# bad: [023f78b02c729070116fa3a7ebd4107a032d3f5c] Merge branch 
'for-next' of git://git.samba.org/sfrench/cifs-2.6
git bisect bad 023f78b02c729070116fa3a7ebd4107a032d3f5c
# bad: [ad1f5caf34390bb20fdbb4eaf71b0494e89936f0] Merge branch 'fixes' 
of git://ftp.arm.linux.org.uk/~rmk/linux-arm
git bisect bad ad1f5caf34390bb20fdbb4eaf71b0494e89936f0

If someone could give me some hard tests to do along the lines of what 
Saso is up to I could probably get that done faster. With the right bad 
kernel I can reproduce this lockup in a matter of hours.

Regards,
Brad