| Summary: | guest will core dump when the resolution of virtual console is higher | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | Xiaomei Gao <xigao> |
| Component: | qemu-kvm | Assignee: | Virtualization Maintenance <virt-maint> |
| Status: | CLOSED NOTABUG | QA Contact: | Virtualization Bugs <virt-bugs> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 6.3 | CC: | acathrow, bcao, bsarathy, juzhang, michen, mkenneth, tburke, virt-maint, xigao |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2012-01-02 08:36:28 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
FYI, -serial vc:xxy whether x or y larger than 2048 will cause guest core dump Mike (In reply to comment #2) > FYI, > -serial vc:xxy > > whether x or y larger than 2048 will cause guest core dump > > Mike hi, Mike Indeed, this issue is triggered under x or y larger than 2048. Best Regards |
Description of problem: when the resolution of virtual console is set up to a higher value, guest will core dump Version-Release number of selected component (if applicable): # uname -r 2.6.32-220.el6.x86_64 # rpm -qa| grep qemu-kvm qemu-kvm-0.12.1.2-2.213.el6.x86_64 How reproducible: 100% Steps to Reproduce: 1.boot a guest /usr/libexec/qemu-kvm -cpu qemu64,+sse2 -smp 2 -m 2G -drive file=/mnt/rhel-server-64.raw,if=none,id=drive-virtio-disk1,media=disk,cache=none,format=raw,werror=stop -device virtio-blk-pci,bus=pci.0,addr=0x3,drive=drive-virtio-disk1,id=virtio-disk1,bootindex=1 -vnc :0 -boot menu=on -M rhel6.2.0 -balloon none -netdev tap,id=id10,script=/etc/qemu-ifup -device virtio-net-pci,netdev=id10,mac=9a:fe:9d:9b:24:10,id=ndev10,bus=pci.0,addr=0x5 -serial vc:1000x1000 2.Ctrl+Alt+3,guest works normally 3.set the resolution of vc to a higher value /usr/libexec/qemu-kvm -serial vc:10000x10000 4 Ctrl+Alt+3,guest core dumped (gdb) bt #0 vnc_refresh_server_surface (vd=0x3772010) at vnc.c:2321 #1 0x00000000004de22c in vnc_refresh (opaque=0xffffffffffffffff) at vnc.c:2361 #2 0x000000000040c578 in qemu_run_timers (timeout=1000) at /usr/src/debug/qemu-kvm-0.12.1.2/vl.c:1309 #3 main_loop_wait (timeout=1000) at /usr/src/debug/qemu-kvm-0.12.1.2/vl.c:4058 #4 0x000000000042af2a in kvm_main_loop () at /usr/src/debug/qemu-kvm-0.12.1.2/qemu-kvm.c:2225 #5 0x000000000040deb5 in main_loop (argc=<value optimized out>, argv=<value optimized out>, envp=<value optimized out>) at /usr/src/debug/qemu-kvm-0.12.1.2/vl.c:4234 #6 main (argc=<value optimized out>, argv=<value optimized out>, envp=<value optimized out>) at /usr/src/debug/qemu-kvm-0.12.1.2/vl.c:6470 Actual results: guest core dump Expected results: when resolution of vc is set up to a higher value, guest should boot with default max value or guest can not boot. Additional info: