Bug 704972
| Summary: | rhel4.9 guest cannot find cdrom device after boot up (50% reproduce) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Product: | Red Hat Enterprise Linux 5 | Reporter: | Golita Yue <gyue> | ||||||||
| Component: | kvm | Assignee: | Markus Armbruster <armbru> | ||||||||
| Status: | CLOSED DEFERRED | QA Contact: | Virtualization Bugs <virt-bugs> | ||||||||
| Severity: | high | Docs Contact: | |||||||||
| Priority: | high | ||||||||||
| Version: | 5.7 | CC: | amit.shah, gcosta, juzhang, mkenneth, rhod, shuang, virt-maint | ||||||||
| Target Milestone: | rc | ||||||||||
| Target Release: | --- | ||||||||||
| Hardware: | Unspecified | ||||||||||
| OS: | Unspecified | ||||||||||
| Whiteboard: | |||||||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||||||
| Doc Text: | Story Points: | --- | |||||||||
| Clone Of: | Environment: | ||||||||||
| Last Closed: | 2011-08-09 14:27:47 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: | 580946 | ||||||||||
| Attachments: |
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Created attachment 499098 [details]
dmesg
Created attachment 499100 [details]
messages
is the index consecutive or inconsecutive when you reproduce this bug, if it's inconsecutive, it should reproduce as bug 654170 reproduce steps: 1. boot up guest 2. reboot guest some times(about 3-10 times) When boot up guest first time: # file /dev/cdrom /dev/cdrom: symbolic link to `hdb' # mkfs /dev/cdrom mke2fs 1.35 (28-Feb-2004) /dev/cdrom is entire device, not just one partition! Proceed anyway? (y,n) y /dev/cdrom: Read-only file system while setting up superblock But, after reboot some times: # file /dev/cdrom /dev/cdrom: symbolic link to `hdc' # mkfs /dev/cdrom mke2fs 1.35 (28-Feb-2004) mkfs.ext2: No medium found while trying to determine filesystem size # mkfs /dev/hdb mke2fs 1.35 (28-Feb-2004) /dev/hdb is entire device, not just one partition! Proceed anyway? (y,n) y /dev/hdb: Read-only file system while setting up superblock So, the symbolic link point to /dev/hdc automatically after reboot some times. *** Bug 707834 has been marked as a duplicate of this bug. *** What about RHEL-5 and RHEL-6 guests? Please try to reproduce and report findings. Can reproduce this bug in RHEL-5.7 guest, but cannot reproduce it in RHEL-6 guest. |
Created attachment 499096 [details] screenshot Description of problem: rhel4.9 guest cannot find cdrom device after boot up(50% reproduce). # dd if=/dev/cdrom of=/dev/null bs=1024 count=100 dd: opening `/dev/cdrom': No medium found # ls -al /dev/cdrom lrwxrwxrwx 1 root root 3 May 16 03:53 /dev/cdrom -> hdc Version-Release number of selected component (if applicable): host: kernel 2.6.18-259.el5 kvm-83-232.el5 guest: kernel 2.6.9-100.ELsmp How reproducible: 50% Steps to Reproduce: 1. boot up rhel4.9 guest with cmd * * * * cmd * * * * * # /usr/libexec/qemu-kvm -drive file='RHEL-4.9-32.raw',index=0,if=ide,media=disk,cache=none,format=raw -net nic,vlan=0,model=virtio,macaddr='9a:e3:8e:79:d8:33' -net tap,vlan=0,ifname='t0-174007-A8sb',script='/usr/local/staf/test/RHEV/kvm/autotest-devel/client/tests/kvm/scripts/qemu-ifup-switch',downscript='no' -m 4096 -smp 2,cores=1,threads=1,sockets=2 -drive file='/tmp/orig.iso',media=cdrom,index=1 -cpu qemu64,+sse2 -soundhw ac97 -spice port=8000,disable-ticketing -qxl 1 -rtc-td-hack -M rhel5.6.0 -boot c -usbdevice tablet -no-kvm-pit-reinjection -monitor stdio * * * * * * * * * * * * 2. run "dd if=/dev/cdrom of=/dev/null bs=1024 count=100" Actual results: return message: dd: opening `/dev/cdrom': No medium found Expected results: could find the cdrom device Additional info: Attached the dmesg & /var/log/messages log