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File _service:tar_scm:qemu-nbd-set-timeout-to-qemu-nbd-socket.patch of Package qemu
From d6aa08ac3693be3e08f2c8d3ad5a356ea6e9dead Mon Sep 17 00:00:00 2001 From: WangJian <wangjian161@huawei.com> Date: Wed, 9 Feb 2022 10:55:08 +0800 Subject: [PATCH] qemu-nbd: set timeout to qemu-nbd socket In case of insufficient memory and kill-9, the NBD socket cannot be processed and stuck all the time. Signed-off-by: wangjian161 <wangjian161@huawei.com> --- nbd/client.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/nbd/client.c b/nbd/client.c index 29ffc609a4..987dde43c7 100644 --- a/nbd/client.c +++ b/nbd/client.c @@ -24,6 +24,8 @@ #include "nbd-internal.h" #include "qemu/cutils.h" +#define NBD_TIMEOUT_SECONDS 30 + /* Definitions for opaque data types */ static QTAILQ_HEAD(, NBDExport) exports = QTAILQ_HEAD_INITIALIZER(exports); @@ -1310,6 +1312,12 @@ int nbd_init(int fd, QIOChannelSocket *sioc, NBDExportInfo *info, } } + if (ioctl(fd, NBD_SET_TIMEOUT, NBD_TIMEOUT_SECONDS) < 0) { + int serrno = errno; + error_setg(errp, "Failed setting timeout"); + return -serrno; + } + trace_nbd_init_finish(); return 0; -- 2.27.0
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