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Bug 2036289 - Qemu core dumped when do block-stream to a snapshot node on non-enough space storage
Summary: Qemu core dumped when do block-stream to a snapshot node on non-enough space ...
Keywords:
Status: CLOSED DUPLICATE of bug 2036178
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: qemu-kvm
Version: 8.6
Hardware: s390x
OS: Linux
medium
medium
Target Milestone: rc
: ---
Assignee: Virtualization Maintenance
QA Contact: Gu Nini
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2021-12-31 01:00 UTC by Gu Nini
Modified: 2022-01-04 02:42 UTC (History)
4 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
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Clone Of:
Environment:
Last Closed: 2021-12-31 01:09:05 UTC
Type: ---
Target Upstream Version:
Embargoed:

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Red Hat Issue Tracker RHELPLAN-106685 0 None None None 2021-12-31 01:05:15 UTC

Description Gu Nini 2021-12-31 01:00:48 UTC 
Description of problem:
When do block-stream to a snapshot node on some storage without enough space, qemu core dumped:

Segmentation fault      (core dumped) MALLOC_PERTURB_=1 /usr/libexec/qemu-kvm -S -name 'avocado-vt-vm1' -sandbox on -machine s390-ccw-virtio,memory-backend=mem-machine_mem -nodefaults -vga none -m 7168 -object memory-backend-ram,size=7168M,id=mem-machine_mem -smp 4,maxcpus=4,cores=2,threads=1,sockets=2 -cpu 'host' -chardev socket,path=/tmp/avocado_7ruqavcp/monitor-qmpmonitor1-20211230-030424-XB4N5POG,server=on,wait=off,id=qmp_id_qmpmonitor1 -mon chardev=qmp_id_qmpmonitor1,mode=control -chardev socket,path=/tmp/avocado_7ruqavcp/monitor-catch_monitor-20211230-030424-XB4N5POG,server=on,wait=off,id=qmp_id_catch_monitor -mon chardev=qmp_id_catch_monitor,mode=control -chardev socket,path=/tmp/avocado_7ruqavcp/serial-serial0-20211230-030424-XB4N5POG,server=on,wait=off,id=chardev_serial0 -device sclpconsole,id=serial0,chardev=chardev_serial0 -device virtio-scsi-ccw,id=virtio_scsi_ccw0 -blockdev node-name=file_image1,driver=file,auto-read-only=on,discard=unmap,aio=threads,filename=/home/ngu/kar/vt_test_images/rhel860-s390x-virtio-scsi.qcow2,cache.direct=on,cache.no-flush=off -blockdev node-name=drive_image1,driver=qcow2,read-only=off,cache.direct=on,cache.no-flush=off,file=file_image1 -device scsi-hd,id=image1,drive=drive_image1,write-cache=on -device virtio-net-ccw,mac=9a:a8:fc:e2:16:36,id=idLqLgts,netdev=id3tWnzy -netdev tap,id=id3tWnzy,vhost=on,vhostfd=24,fd=8 -nographic -rtc base=utc,clock=host,driftfix=slew -boot strict=on -enable-kvm -device virtio-mouse-ccw,id=input_mouse1 -device virtio-keyboard-ccw,id=input_keyboard1


Version-Release number of selected component (if applicable):
Host kernel: 4.18.0-357.el8.s390x
Guest kernel: 4.18.0-356.el8.s390x/4.18.0-348.7.1.el8_5.s390x
Qemu: qemu-kvm-6.2.0-1.module+el8.6.0+13725+61ae1949.s390x/qemu-kvm-6.0.0-33.module+el8.5.0+13514+2c386966.1.s390x

How reproducible:
4/10

Steps to Reproduce:
1. Boot up a guest:

/usr/libexec/qemu-kvm \
    -S  \
    -name 'avocado-vt-vm1'  \
    -sandbox on  \
    -machine s390-ccw-virtio,memory-backend=mem-machine_mem  \
    -nodefaults  \
    -vga none \
    -m 7168 \
    -object memory-backend-ram,size=7168M,id=mem-machine_mem  \
    -smp 4,maxcpus=4,cores=2,threads=1,sockets=2  \
    -cpu 'host' \
    -chardev socket,path=/tmp/avocado_1,server=on,wait=off,id=qmp_id_qmpmonitor1  \
    -mon chardev=qmp_id_qmpmonitor1,mode=control \
    -chardev socket,path=/tmp/avocado_2,server=on,wait=off,id=chardev_serial0 \
    -device sclpconsole,id=serial0,chardev=chardev_serial0 \
    -device virtio-scsi-ccw,id=virtio_scsi_ccw0 \
    -blockdev node-name=file_image1,driver=file,auto-read-on
Comment 1 Gu Nini 2021-12-31 01:09:05 UTC 

*** This bug has been marked as a duplicate of bug 2036178 ***
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