Re: [Qemu-devel] [PATCH] file-posix: unlock qemu_global_mutex before pread when attach disk

2019-06-10 Thread no-reply
Patchew URL: https://patchew.org/QEMU/1560173684-6264-1-git-send-email-lizhen...@huawei.com/ Hi, This series seems to have some coding style problems. See output below for more information: Subject: [Qemu-devel] [PATCH] file-posix: unlock qemu_global_mutex before pread when attach disk Type

[Qemu-devel] [PATCH] file-posix: unlock qemu_global_mutex before pread when attach disk

2019-06-10 Thread Zhengui li
virtual machine cpu soft lockup when attach a disk to the vm in the case that backend storage network has a large delay or IO pressure is too large. The bt of qemu main thread: #0 0x9d78402c in pread64 () from /lib64/libpthread.so.0 #1 0xce3357d8 in pread64 (__offset=0,