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Re: [Qemu-devel] [PULL 19/43] rcu: init rcu_registry_lock after fork
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From: |
Gerd Hoffmann |
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Subject: |
Re: [Qemu-devel] [PULL 19/43] rcu: init rcu_registry_lock after fork |
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Date: |
Wed, 16 Sep 2015 14:37:37 +0200 |
On Mi, 2015-09-09 at 15:49 +0200, Paolo Bonzini wrote:
> From: "Emilio G. Cota" <address@hidden>
>
> We were unlocking this lock after fork, which is wrong since
> only the thread that holds a mutex is allowed to unlock it.
This breaks libvirt capability probing. I see qemu running:
/home/kraxel/projects/qemu/build-default/x86_64-softmmu/qemu-system-x86_64 -S
-no-user-config -nodefaults -nographic -M none -qmp
unix:/var/lib/libvirt/qemu/capabilities.monitor.sock,server,nowait -pidfile
/var/lib/libvirt/qemu/capabilities.pidfile -daemonize
and libvirt is stuck until I kill qemu.
cheers,
Gerd
- [Qemu-devel] [PULL 11/43] remove qemu/tls.h, (continued)
- [Qemu-devel] [PULL 11/43] remove qemu/tls.h, Paolo Bonzini, 2015/09/09
- [Qemu-devel] [PULL 13/43] tcg: synchronize cpu->exit_request and cpu->tcg_exit_req accesses, Paolo Bonzini, 2015/09/09
- [Qemu-devel] [PULL 16/43] tcg: signal-free qemu_cpu_kick, Paolo Bonzini, 2015/09/09
- [Qemu-devel] [PULL 12/43] tcg: assign cpu->current_tb in a simpler place, Paolo Bonzini, 2015/09/09
- [Qemu-devel] [PULL 18/43] Makefile.target: include top level build dir in vpath, Paolo Bonzini, 2015/09/09
- [Qemu-devel] [PULL 17/43] Move RAMBlock and ram_list to ram_addr.h, Paolo Bonzini, 2015/09/09
- [Qemu-devel] [PULL 22/43] translate-all: remove obsolete comment about l1_map, Paolo Bonzini, 2015/09/09
- [Qemu-devel] [PULL 20/43] rcu: fix comment with s/rcu_gp_lock/rcu_registry_lock/, Paolo Bonzini, 2015/09/09
- [Qemu-devel] [PULL 21/43] linux-user: call rcu_(un)register_thread on pthread_(exit|create), Paolo Bonzini, 2015/09/09
- [Qemu-devel] [PULL 19/43] rcu: init rcu_registry_lock after fork, Paolo Bonzini, 2015/09/09
- Re: [Qemu-devel] [PULL 19/43] rcu: init rcu_registry_lock after fork,
Gerd Hoffmann <=
- [Qemu-devel] [PULL 23/43] cutils: Add qemu_strtol() wrapper, Paolo Bonzini, 2015/09/09
- [Qemu-devel] [PULL 28/43] CODING_STYLE: update mixed declaration rules, Paolo Bonzini, 2015/09/09
- [Qemu-devel] [PULL 26/43] cutils: Add qemu_strtoull() wrapper, Paolo Bonzini, 2015/09/09
- [Qemu-devel] [PULL 24/43] cutils: Add qemu_strtoul() wrapper, Paolo Bonzini, 2015/09/09
- [Qemu-devel] [PULL 27/43] qmp: Add example usage of strto*l() qemu wrapper, Paolo Bonzini, 2015/09/09
- [Qemu-devel] [PULL 25/43] cutils: Add qemu_strtoll() wrapper, Paolo Bonzini, 2015/09/09
- [Qemu-devel] [PULL 29/43] checkpatch: adapt some tests to QEMU, Paolo Bonzini, 2015/09/09
- [Qemu-devel] [PULL 30/43] checkpatch: remove tests that are not relevant outside the kernel, Paolo Bonzini, 2015/09/09
- [Qemu-devel] [PULL 31/43] vhost-scsi: fix wrong vhost-scsi firmware path, Paolo Bonzini, 2015/09/09