Bug 810694
| Summary: | viostor fails with DRIVER_IRQL_NOT_LESS_OR_EQUAL BOSD under heavy random write load | |||
|---|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | Vadim Rozenfeld <vrozenfe> | |
| Component: | virtio-win | Assignee: | Vadim Rozenfeld <vrozenfe> | |
| Status: | CLOSED ERRATA | QA Contact: | Virtualization Bugs <virt-bugs> | |
| Severity: | medium | Docs Contact: | ||
| Priority: | unspecified | |||
| Version: | 6.3 | CC: | acathrow, bcao, bsarathy, chorn, dyasny, juzhang, michen, tcameron, xigao | |
| Target Milestone: | rc | |||
| Target Release: | --- | |||
| Hardware: | Unspecified | |||
| OS: | Windows | |||
| Whiteboard: | ||||
| Fixed In Version: | build 26 | Doc Type: | Bug Fix | |
| Doc Text: |
This bug was reported upstream by several different people.
Cause: it was a race condition in viostor driver due to incorrect flush requests handling.
Consequence: Under heavy load, usually (but not always) when using cache=writheback option, flush handler was executed asynchronously without proper synchronisation with the rest of request processing logic.
Fix: Synchronize execution of the flush request handler with ISR.
Result: Fixed for all OSes including WinXp
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Story Points: | --- | |
| Clone Of: | ||||
| : | 825986 (view as bug list) | Environment: | ||
| Last Closed: | 2012-06-20 11:58:51 UTC | Type: | Bug | |
| Regression: | --- | Mount Type: | --- | |
| Documentation: | --- | CRM: | ||
| Verified Versions: | Category: | --- | ||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | ||
| Cloudforms Team: | --- | Target Upstream Version: | ||
| Embargoed: | ||||
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Description
Vadim Rozenfeld
2012-04-08 11:12:12 UTC
this bug was reported upstream : https://github.com/YanVugenfirer/kvm-guest-drivers-windows/issues/2#issuecomment-5009116 http://lists.gnu.org/archive/html/qemu-devel/2012-03/msg04550.html However it's easily reproducible on rhel6.3 as well Fixed in build25 http://download.devel.redhat.com/brewroot/packages/virtio-win-prewhql/0.1/25/win/virtio-win-prewhql-0.1.zip Reproduced this issue on virtio-win-prewhql-22 Verified this issue on virtio-win-prewhql-25 Steps: 1.start guest w/ cache=writeback 2.in the guest ,running Crystal Disk mark .choose "9 2000MB C:\ “ Actual Results On virtio-win-prewhql-22 ,guest BSOD ocurrs On virtio-win-prewhql-25 ,gust works fine Based on above ,this issue has been fixed ald .
Technical note added. If any revisions are required, please edit the "Technical Notes" field
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New Contents:
This bug was reported upstream by several different people.
Cause: it was a race condition in viostor driver due to incorrect flush requests handling.
Consequence: Under heavy load, usually (but not always) when using cache=writheback option, flush handler was executed asynchronously without proper synchronisation with the rest of request processing logic.
Fix: Synchronize execution of the flush request handler with ISR.
Result: Fixed for all OSes including WinXp
I could not find the build 25 package, so I am using build 26. Is that OK? Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. http://rhn.redhat.com/errata/RHBA-2012-0751.html |