this issue occurred again. So reopen this bug. I use upstream kvm.git ef7c782ea and qemu-kvm.git 44755ea36. The host is rhel6.1 with lastest kvm and qemu-kvm installed, and its file system type is ext4. here's the dmesg info in rhel5u5 guest after being restored. -----------------------------------------log-------------------------------------- hda: status error: status=0x00 { } ide: failed opcode was: unknown hda: drive not ready for command hda: status error: status=0x00 { } ide: failed opcode was: unknown hda: drive not ready for command hda: status error: status=0x00 { } ide: failed opcode was: unknown hda: drive not ready for command hda: status error: status=0x00 { } ide: failed opcode was: unknown hda: drive not ready for command ide0: reset: master: error (0x00?) hda: status error: status=0x00 { } ide: failed opcode was: unknown hda: drive not ready for command hda: status error: status=0x00 { } ide: failed opcode was: unknown hda: drive not ready for command hda: status error: status=0x00 { } ide: failed opcode was: unknown hda: drive not ready for command hda: status error: status=0x00 { } ide: failed opcode was: unknown hda: drive not ready for command ide0: reset: master: error (0x00?) end_request: I/O error, dev hda, sector 32991 end_request: I/O error, dev hda, sector 32999 end_request: I/O error, dev hda, sector 33007 end_request: I/O error, dev hda, sector 4465351 Buffer I/O error on device hda1, logical block 558161 Aborting journal on device hda1. lost page write due to I/O error on hda1 end_request: I/O error, dev hda, sector 4465359 Buffer I/O error on device hda1, logical block 558162 lost page write due to I/O error on hda1 end_request: I/O error, dev hda, sector 13447 Buffer I/O error on device hda1, logical block 1673 lost page write due to I/O error on hda1 __journal_remove_journal_head: freeing b_committed_data journal commit I/O error ext3_abort called. EXT3-fs error (device hda1): ext3_journal_start_sb: Detected aborted journal Remounting filesystem read-only
** Project changed: qemu => qemu-kvm ** Changed in: qemu-kvm Status: Fix Released => New -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/739088 Title: I/O errors after "Save/Restore" Status in qemu-kvm: New Bug description: qemu-kvm commit: b73357ecd2b14c057134cb71d29447b5b988c516 ( Author: Marcelo Tosatti <mtosa...@redhat.com> Date: Wed Mar 16 17:04:16 2011 -0300) kvm commit: a72e315c509376bbd1e121219c3ad9f23973923f After restoring from saved img, some I/O errors appear in dmesg and file system is read-only. I'm sure that the guest runs normally before saving. See the pictures attached in detail. Reproduce steps: ---------------- 1.create a guest: qemu-img create -b /share/xvs/img/app/ia32e_SMP.img -f qcow2 /root/test0320.img qemu-system-x86_64 -m 256 -net nic,macaddr=00:16:3e:06:8a:08,model=rtl8139 -net tap,script=/etc/kvm/qemu-ifup -hda /root/test0320.img 2.save the guest: on qemu monitor: migrate "exec:dd of=/root/test-save.img" 3.quit from qemu: "q" command on qemu monitor 4.restore from img just saved: qemu-system-x86_64 -m 256 -net nic,macaddr=00:16:3e:06:8a:08,model=rtl8139 -net tap,script=/etc/kvm/qemu-ifup -incoming=/roo/test-save.img 5.see dmesg in restored guest, you'll find some I/O errors. And run some commands such as "ps", "touch","reboot" and so on. Then some I/O errors appear. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu-kvm/+bug/739088/+subscriptions