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Re: [qemu-s390x] [Qemu-devel] [PULL 1/4] balloon: Allow multiple inhibit


From: Alex Williamson
Subject: Re: [qemu-s390x] [Qemu-devel] [PULL 1/4] balloon: Allow multiple inhibit users
Date: Wed, 22 Aug 2018 11:47:09 -0600

On Wed, 22 Aug 2018 17:56:12 +0200
Christian Borntraeger <address@hidden> wrote:

> This breaks qemu-io test for me.
> 
> #0  0x000003ff98f3e2d4 in raise () at /lib64/libc.so.6
> #1  0x000003ff98f239a8 in abort () at /lib64/libc.so.6
> #2  0x000003ff98f3632e in __assert_fail_base () at /lib64/libc.so.6
> #3  0x000003ff98f363ac in  () at /lib64/libc.so.6
> #4  0x000000000108301a in qemu_balloon_inhibit (address@hidden) at 
> /home/cborntra/REPOS/qemu/balloon.c:56
> #5  0x00000000012026f2 in postcopy_ram_incoming_cleanup (address@hidden) at 
> /home/cborntra/REPOS/qemu/migration/postcopy-ram.c:542
> #6  0x00000000011eed5e in process_incoming_migration_co (opaque=<optimized 
> out>) at /home/cborntra/REPOS/qemu/migration/migration.c:407
> #7  0x0000000001374000 in coroutine_trampoline (i0=<optimized out>, 
> i1=<optimized out>) at /home/cborntra/REPOS/qemu/util/coroutine-ucontext.c:116
> #8  0x000003ff98f53c02 in __makecontext_ret () at /lib64/libc.so.6
> 
> Cant see right now whats wrong.

I'd have to guess it's the assert added to verify increments and
decrements are balanced, which suggests postcopy is de-inhibiting more
than it's inhibiting :-\  Thanks,

Alex



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