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Re: [Qemu-devel] [PATCH v2 0/3] AioContext: ctx->dispatching is dead, al
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From: |
Richard W.M. Jones |
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Subject: |
Re: [Qemu-devel] [PATCH v2 0/3] AioContext: ctx->dispatching is dead, all hail ctx->notify_me |
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Date: |
Thu, 16 Jul 2015 20:05:46 +0100 |
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User-agent: |
Mutt/1.5.20 (2009-12-10) |
Sorry to spoil things, but I'm still seeing this bug, although it is
now a lot less frequent with your patch. I would estimate it happens
more often than 1 in 5 runs with qemu.git, and probably 1 in 200 runs
with qemu.git + the v2 patch series.
It's the exact same hang in both cases.
Is it possible that this patch doesn't completely close any race?
Still, it is an improvement, so there is that.
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
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- [Qemu-devel] [PATCH v2 0/3] AioContext: ctx->dispatching is dead, all hail ctx->notify_me, Paolo Bonzini, 2015/07/16
- [Qemu-devel] [PATCH v2 2/3] aio-win32: reorganize polling loop, Paolo Bonzini, 2015/07/16
- [Qemu-devel] [PATCH v2 1/3] tests: remove irrelevant assertions from test-aio, Paolo Bonzini, 2015/07/16
- [Qemu-devel] [PATCH v2 3/3] AioContext: fix broken ctx->dispatching optimization, Paolo Bonzini, 2015/07/16
- Re: [Qemu-devel] [PATCH v2 0/3] AioContext: ctx->dispatching is dead, all hail ctx->notify_me, Kevin Wolf, 2015/07/16
- Re: [Qemu-devel] [PATCH v2 0/3] AioContext: ctx->dispatching is dead, all hail ctx->notify_me, Richard W.M. Jones, 2015/07/16
- Re: [Qemu-devel] [PATCH v2 0/3] AioContext: ctx->dispatching is dead, all hail ctx->notify_me,
Richard W.M. Jones <=
- Re: [Qemu-devel] [PATCH v2 0/3] AioContext: ctx->dispatching is dead, all hail ctx->notify_me, Paolo Bonzini, 2015/07/16
- Re: [Qemu-devel] [PATCH v2 0/3] AioContext: ctx->dispatching is dead, all hail ctx->notify_me, Paolo Bonzini, 2015/07/17
- Re: [Qemu-devel] [PATCH v2 0/3] AioContext: ctx->dispatching is dead, all hail ctx->notify_me, Marc Zyngier, 2015/07/17
- Re: [Qemu-devel] [PATCH v2 0/3] AioContext: ctx->dispatching is dead, all hail ctx->notify_me, Laszlo Ersek, 2015/07/17
- Re: [Qemu-devel] [PATCH v2 0/3] AioContext: ctx->dispatching is dead, all hail ctx->notify_me, Marc Zyngier, 2015/07/17
- Re: [Qemu-devel] [PATCH v2 0/3] AioContext: ctx->dispatching is dead, all hail ctx->notify_me, Richard W.M. Jones, 2015/07/17