Bug 747011
| Summary: | Taking screenshot hangs Spice display when a client is connected | |||
|---|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | Marc-Andre Lureau <marcandre.lureau> | |
| Component: | qemu-kvm | Assignee: | Alon Levy <alevy> | |
| Status: | CLOSED ERRATA | QA Contact: | Virtualization Bugs <virt-bugs> | |
| Severity: | medium | Docs Contact: | ||
| Priority: | unspecified | |||
| Version: | 6.2 | CC: | acathrow, alevy, bsarathy, cfergeau, cmeadors, dblechte, juzhang, minovotn, mkenneth, mkrcmari, shu, syeghiay, virt-maint, wdai | |
| Target Milestone: | rc | |||
| Target Release: | --- | |||
| Hardware: | Unspecified | |||
| OS: | Unspecified | |||
| Whiteboard: | ||||
| Fixed In Version: | qemu-kvm-0.12.1.2-2.251.el6 | Doc Type: | Bug Fix | |
| Doc Text: |
No Documentation Needed
|
Story Points: | --- | |
| Clone Of: | ||||
| : | 800338 (view as bug list) | Environment: | ||
| Last Closed: | 2012-06-20 11:35:18 UTC | Type: | --- | |
| Regression: | --- | Mount Type: | --- | |
| Documentation: | --- | CRM: | ||
| Verified Versions: | Category: | --- | ||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | ||
| Cloudforms Team: | --- | Target Upstream Version: | ||
| Embargoed: | ||||
| Bug Depends On: | ||||
| Bug Blocks: | 800338 | |||
upstream commit d70d6b31091ab522ce793a52559e3dd9f9913b32 my bad, wrong bug edited. Bug should be on qemu-kvm, not on spice-server, that's where the current patchset that fixes it is, spice-server doesn't require any changes. Moving to qemu-kvm. Please note reproducer remains the same, and the fixes are on the mailing list: http://patchwork.ozlabs.org/patch/142978/ http://patchwork.ozlabs.org/patch/142987/ http://patchwork.ozlabs.org/patch/142972/ http://patchwork.ozlabs.org/patch/142986/ http://patchwork.ozlabs.org/patch/142973/ http://patchwork.ozlabs.org/patch/142983/ http://patchwork.ozlabs.org/patch/142985/ and http://patchwork.ozlabs.org/patch/142974/ http://patchwork.ozlabs.org/patch/142976/ http://patchwork.ozlabs.org/patch/142975/ http://patchwork.ozlabs.org/patch/142979/ Not sure which QE should take this. Alon I can't reproduce this issue with the steps in comment0 and the following environment: # uname -r;rpm -q qemu-kvm 2.6.32-220.el6.x86_64 qemu-kvm-0.12.1.2-2.209.el6.x86_64 spice-client-0.8.2-15.el6.x86_64 spice-server-0.8.2-5.el6.x86_64 virt-manager-0.9.0-7.el6.x86_64 libvirt-0.9.10-8.el6.x86_64 Steps： 1. setup a spice VM with virt-manager, and open the display 2. "while true; do sleep 1 && virsh screenshot domain; done" in the background 3. do random things in the guest: move windows around, scroll webpage
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New Contents:
No Documentation Needed
Verified this issue with the steps the following environment: 2.6.32-220.el6.x86_64 qemu-kvm-0.12.1.2-2.253.el6.x86_64 steps: 1. Boot guest using qemu-kvm directly, connect guest with spice then run TOMs-2D-Bench in a loop in guest and take screenshot more than 1000 times , guest works well. 2. Boot guest with virt-manager, and open the display with spice 2.1 run TOMs-2D-Bench in a loop in guest 2.2 "while true; do sleep 1 && virsh screenshot domain; done" in the background, take screenshot more than 1000 times. Both host and guest running well. Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. http://rhn.redhat.com/errata/RHBA-2012-0746.html |
Description of problem: A hang can occur while taking qemu screendumps and a spice client is connected: Thread 2 (Thread 0x7f46aa7fd700 (LWP 23002)): #0 0x000000373a0ab6ad in nanosleep () at ../sysdeps/unix/syscall-template.S:82 #1 0x000000373a0d9954 in usleep (useconds=<optimized out>) at ../sysdeps/unix/sysv/linux/usleep.c:33 #2 0x00007f46b1c39bc8 in flush_display_commands (worker=0x7f46aa6255e0) at red_worker.c:8932 #3 0x00007f46b1c3a1b9 in handle_dev_update (worker=0x7f46aa6255e0) at red_worker.c:10149 #4 handle_dev_input (listener=0x7f46aa6255e0, events=<optimized out>) at red_worker.c:10416 #5 0x00007f46b1c3c582 in red_worker_main (arg=<optimized out>) at red_worker.c:10803 #6 0x000000373a807b31 in start_thread (arg=0x7f46aa7fd700) at pthread_create.c:305 #7 0x000000373a0dfd2d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115 Version-Release number of selected component (if applicable): 0.8.2 (and git master) How reproducible: 100% Steps to Reproduce: 1. setup a spice VM with virt-manager, and open the display 2. "while true; do sleep 1 && virsh screenshot domain; done" in the background 3. do random things in the guest: move windows around, scroll webpage... Actual results: The display hangs. Expected results: It should not hang at all. Additional info: Restarting the client solves it.