-----Original Message----- From: libvir-list-bounces@redhat.com [mailto:libvir-list-bounces@redhat.com] On Behalf Of Michal Privoznik Sent: Wednesday, April 04, 2018 5:21 PM To: zhangzijian (Cloud); libvir-list@redhat.com Cc: huangyong (Cloud) Subject: Re: [libvirt] hash: failed on concurrent iterating.
On 04/04/2018 11:10 AM, Zhangzijian wrote:
In function 'virHashForEach/virHashSearch', 'table->iterating' prevent concurrent iterating. But most caller evoke it, after hold a read lock. This will lead the second caller failed to iterate the table. So, the caller should hold a write lock, then iterate the table.
Looks like there's another thread discussing this issue:
Yes, the issue is still exist in v4.2.0. Is it applicable to using write lock instead?
https://www.redhat.com/archives/libvirt-users/2018-April/msg00004.html
Michal
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