From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
To: marcandre.lureau@redhat.com, qemu-devel@nongnu.org
Cc: mst@redhat.com, armbru@redhat.com
Subject: [Qemu-devel] make check: crash in vhost-user chardev cleanup
Date: Fri, 24 Feb 2017 19:51:18 +0000 [thread overview]
Message-ID: <20170224195117.GR8830@work-vm> (raw)
Hi,
I'm seeing a hang+crash doing a make check that
looks like it's coming from vhost-user's chardev cleanup,
so I'm suspecting your e0b283e7c.
The synptom is that the make check hangs in the qtest
part, and a dmesg shows that a qemu crashed.
I got a backtrace that shows:
(gdb) where
#0 0x0000560d3344f03e in qemu_chr_fe_read_all (be=be@entry=0x0, buf=buf@entry=0x7ffea7a2f520 "\v", len=len@entry=12) at /home/dgilbert/git/qemu/chardev/char.c:209
#1 0x0000560d33199d64 in vhost_user_read (msg=msg@entry=0x7ffea7a2f520, dev=<optimized out>)
at /home/dgilbert/git/qemu/hw/virtio/vhost-user.c:125
#2 0x0000560d3319a11f in vhost_user_get_vring_base (dev=0x560d35a614a0, ring=0x7ffea7a2f670)
at /home/dgilbert/git/qemu/hw/virtio/vhost-user.c:417
#3 0x0000560d33196abb in vhost_virtqueue_stop (dev=dev@entry=0x560d35a614a0, vdev=vdev@entry=0x560d3729cc00, vq=0x560d35a61678, idx=1) at /home/dgilbert/git/qemu/hw/virtio/vhost.c:1070
#4 0x0000560d33198cd4 in vhost_dev_stop (hdev=hdev@entry=0x560d35a614a0, vdev=vdev@entry=0x560d3729cc00)
at /home/dgilbert/git/qemu/hw/virtio/vhost.c:1533
#5 0x0000560d3317bfd8 in vhost_net_stop_one (net=0x560d35a614a0, dev=0x560d3729cc00)
at /home/dgilbert/git/qemu/hw/net/vhost_net.c:288
#6 0x0000560d3317c4aa in vhost_net_stop (dev=dev@entry=0x560d3729cc00, ncs=<optimized out>, total_queues=total_queues@entry=1) at /home/dgilbert/git/qemu/hw/net/vhost_net.c:367
#7 0x0000560d33179201 in virtio_net_vhost_status (status=<optimized out>, n=0x560d3729cc00)
at /home/dgilbert/git/qemu/hw/net/virtio-net.c:176
#8 0x0000560d33179201 in virtio_net_set_status (vdev=0x560d3729cc00, status=7 '\a')
at /home/dgilbert/git/qemu/hw/net/virtio-net.c:250
#9 0x0000560d3339ce99 in qemu_del_net_client (nc=0x560d35a61250) at /home/dgilbert/git/qemu/net/net.c:390
#10 0x0000560d3339e30d in net_cleanup () at /home/dgilbert/git/qemu/net/net.c:1454
#11 0x0000560d330ee940 in main (argc=<optimized out>, argv=<optimized out>, envp=<optimized out>)
at /home/dgilbert/git/qemu/vl.c:4637
(gdb)
#0 qemu_chr_fe_read_all (be=be@entry=0x0, buf=buf@entry=0x7ffea7a2f520 "\v", len=len@entry=12)
at /home/dgilbert/git/qemu/chardev/char.c:209
209 Chardev *s = be->chr;
Dave
--
Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK
next reply other threads:[~2017-02-24 19:51 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-24 19:51 Dr. David Alan Gilbert [this message]
2017-02-24 20:08 ` [Qemu-devel] make check: crash in vhost-user chardev cleanup Marc-André Lureau
2017-02-24 20:12 ` Dr. David Alan Gilbert
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20170224195117.GR8830@work-vm \
--to=dgilbert@redhat.com \
--cc=armbru@redhat.com \
--cc=marcandre.lureau@redhat.com \
--cc=mst@redhat.com \
--cc=qemu-devel@nongnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).