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| author | Christian Krinitsin <mail@krinitsin.com> | 2025-06-30 12:24:58 +0000 |
|---|---|---|
| committer | Christian Krinitsin <mail@krinitsin.com> | 2025-06-30 12:27:06 +0000 |
| commit | 33606b41d35115f887ea688b1a16f2ff85bf2fe4 (patch) | |
| tree | 406b2c7b19a087ba437c68f3dbf0b589fa1d6150 /results/scraper/launchpad-without-comments/1888601 | |
| parent | adedf8771bc4de3113041ca21bd4d0d1c0014b6a (diff) | |
| download | emulator-bug-study-33606b41d35115f887ea688b1a16f2ff85bf2fe4.tar.gz emulator-bug-study-33606b41d35115f887ea688b1a16f2ff85bf2fe4.zip | |
add launchpad bug reports without comments
Diffstat (limited to 'results/scraper/launchpad-without-comments/1888601')
| -rw-r--r-- | results/scraper/launchpad-without-comments/1888601 | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/results/scraper/launchpad-without-comments/1888601 b/results/scraper/launchpad-without-comments/1888601 new file mode 100644 index 00000000..d28884f3 --- /dev/null +++ b/results/scraper/launchpad-without-comments/1888601 @@ -0,0 +1,40 @@ +QEMU v5.1.0-rc0/rc1 hang with nested virtualization + +We're running Kata Containers using QEMU and with v5.1.0rc0 and rc1 have noticed a problem at startup where QEMu appears to hang. We are not seeing this problem on our bare metal nodes and only on a VSI that supports nested virtualization. + +We unfortunately see nothing at all in the QEMU logs to help understand the problem and a hung process is just a guess at this point. + +Using git bisect we first see the problem with... + +--- + +f19bcdfedd53ee93412d535a842a89fa27cae7f2 is the first bad commit +commit f19bcdfedd53ee93412d535a842a89fa27cae7f2 +Author: Jason Wang <email address hidden> +Date: Wed Jul 1 22:55:28 2020 +0800 + + virtio-pci: implement queue_enabled method + + With version 1, we can detect whether a queue is enabled via + queue_enabled. + + Signed-off-by: Jason Wang <email address hidden> + Signed-off-by: Cindy Lu <email address hidden> + Message-Id: <email address hidden> + Reviewed-by: Michael S. Tsirkin <email address hidden> + Signed-off-by: Michael S. Tsirkin <email address hidden> + Acked-by: Jason Wang <email address hidden> + + hw/virtio/virtio-pci.c | 13 +++++++++++++ + 1 file changed, 13 insertions(+) + +--- + +Reverting this commit seems to work and prevent the hanging. + +--- + +Here's how kata ends up launching qemu in our environment -- +/opt/kata/bin/qemu-system-x86_64 -name sandbox-849df14c6065931adedb9d18bc9260a6d896f1814a8c5cfa239865772f1b7a5f -uuid 6bec458e-1da7-4847-a5d7-5ab31d4d2465 -machine pc,accel=kvm,kernel_irqchip -cpu host,pmu=off -qmp unix:/run/vc/vm/849df14c6065931adedb9d18bc9260a6d896f1814a8c5cfa239865772f1b7a5f/qmp.sock,server,nowait -m 4096M,slots=10,maxmem=30978M -device pci-bridge,bus=pci.0,id=pci-bridge-0,chassis_nr=1,shpc=on,addr=2,romfile= -device virtio-serial-pci,disable-modern=true,id=serial0,romfile= -device virtconsole,chardev=charconsole0,id=console0 -chardev socket,id=charconsole0,path=/run/vc/vm/849df14c6065931adedb9d18bc9260a6d896f1814a8c5cfa239865772f1b7a5f/console.sock,server,nowait -device virtio-scsi-pci,id=scsi0,disable-modern=true,romfile= -object rng-random,id=rng0,filename=/dev/urandom -device virtio-rng-pci,rng=rng0,romfile= -device virtserialport,chardev=charch0,id=channel0,name=agent.channel.0 -chardev socket,id=charch0,path=/run/vc/vm/849df14c6065931adedb9d18bc9260a6d896f1814a8c5cfa239865772f1b7a5f/kata.sock,server,nowait -chardev socket,id=char-396c5c3e19e29353,path=/run/vc/vm/849df14c6065931adedb9d18bc9260a6d896f1814a8c5cfa239865772f1b7a5f/vhost-fs.sock -device vhost-user-fs-pci,chardev=char-396c5c3e19e29353,tag=kataShared,romfile= -netdev tap,id=network-0,vhost=on,vhostfds=3:4,fds=5:6 -device driver=virtio-net-pci,netdev=network-0,mac=52:ac:2d:02:1f:6f,disable-modern=true,mq=on,vectors=6,romfile= -global kvm-pit.lost_tick_policy=discard -vga none -no-user-config -nodefaults -nographic -daemonize -object memory-backend-file,id=dimm1,size=4096M,mem-path=/dev/shm,share=on -numa node,memdev=dimm1 -kernel /opt/kata/share/kata-containers/vmlinuz-5.7.9-74 -initrd /opt/kata/share/kata-containers/kata-containers-initrd_alpine_1.11.2-6_agent.initrd -append tsc=reliable no_timer_check rcupdate.rcu_expedited=1 i8042.direct=1 i8042.dumbkbd=1 i8042.nopnp=1 i8042.noaux=1 noreplace-smp reboot=k console=hvc0 console=hvc1 iommu=off cryptomgr.notests net.ifnames=0 pci=lastbus=0 debug panic=1 nr_cpus=4 agent.use_vsock=false scsi_mod.scan=none init=/usr/bin/kata-agent -pidfile /run/vc/vm/849df14c6065931adedb9d18bc9260a6d896f1814a8c5cfa239865772f1b7a5f/pid -D /run/vc/vm/849df14c6065931adedb9d18bc9260a6d896f1814a8c5cfa239865772f1b7a5f/qemu.log -smp 2,cores=1,threads=1,sockets=4,maxcpus=4 + +--- \ No newline at end of file |