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From: Paolo Bonzini <pbonzini@redhat.com>
To: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Anthony Liguori <aliguori@us.ibm.com>,
	Alon Levy <alevy@redhat.com>,
	qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH 1/6] Enable joinable POSIX threads
Date: Wed, 21 Sep 2011 09:16:54 +0200	[thread overview]
Message-ID: <4E798F66.4070809@redhat.com> (raw)
In-Reply-To: <3beaa0c559cd7f2df1299e7385a8997165c0f851.1316537591.git.jan.kiszka@siemens.com>

On 09/20/2011 06:53 PM, Jan Kiszka wrote:
> -    qemu_thread_create(&thread_id, event_thread, card);
> -    qemu_thread_create(&thread_id, handle_apdu_thread, card);
> +    qemu_thread_create(&thread_id, event_thread, card, QEMU_THREAD_DETACHED);
> +    qemu_thread_create(&thread_id, handle_apdu_thread, card,
> +                       QEMU_THREAD_DETACHED);
>       return 0;
>   }

I think these two should be joinable.  Otherwise, you might be 
destroying the apdu_thread_quit_mutex while the handle_apdu_thread 
hasn't yet finished unlocking it (even though it already progressed 
enough in qemu_mutex_destroy to release the main thread).

Anyhow, the bug is not introduced by your patch, so

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>

  reply	other threads:[~2011-09-21  7:17 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-09-20 16:53 [Qemu-devel] [PATCH 0/6] Spread the use of QEMU threading & locking API Jan Kiszka
2011-09-20 16:53 ` [Qemu-devel] [PATCH 1/6] Enable joinable POSIX threads Jan Kiszka
2011-09-21  7:16   ` Paolo Bonzini [this message]
2011-09-21 13:40     ` Kevin Wolf
2011-09-21 13:38       ` Paolo Bonzini
2011-09-20 16:53 ` [Qemu-devel] [PATCH 2/6] Introduce qemu_cond_timedwait Jan Kiszka
2011-09-20 18:22   ` Paolo Bonzini
2011-09-20 19:02     ` [Qemu-devel] [PATCH v2 2/6] Introduce qemu_cond_timedwait for POSIX Jan Kiszka
2011-09-20 16:53 ` [Qemu-devel] [PATCH 3/6] Switch POSIX compat AIO to QEMU abstractions Jan Kiszka
2011-09-21 13:57   ` Kevin Wolf
2011-09-21 14:02     ` Jan Kiszka
2011-09-21 14:11       ` Kevin Wolf
2011-09-20 16:53 ` [Qemu-devel] [PATCH 4/6] Switch compatfd to QEMU thread Jan Kiszka
2011-09-20 16:53 ` [Qemu-devel] [PATCH 5/6] audio: Use QEMU threads & synchronization Jan Kiszka
2011-09-20 16:53 ` [Qemu-devel] [PATCH 6/6] audio: Switch coreaudio to QemuMutex Jan Kiszka
2011-09-26  7:58   ` Andreas Färber
2011-09-26  8:06     ` Jan Kiszka

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