Bug 1273731
| Summary: | It displays IO error to use "ls" in directory mounted for usb device after guest boot up with "host-usb" | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Xujun Ma <xuma> |
| Component: | qemu-kvm-rhev | Assignee: | Laurent Vivier <lvivier> |
| Status: | CLOSED NOTABUG | QA Contact: | Virtualization Bugs <virt-bugs> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 7.2 | CC: | hannsj_uhl, jsuchane, knoel, lvivier, michen, qzhang, sherold, virt-maint, xuma, zhengtli |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | ppc64le | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2016-02-24 10:33:57 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: | |||
| Bug Depends On: | |||
| Bug Blocks: | 1308609, 1359843 | ||
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Description
Xujun Ma
2015-10-21 06:42:49 UTC
Having a device simultaneously mounted by the host and passed through to the guest with usb-host can't possibly work well. I don't quite see how it is working on x86. What are the exact steps you ran on x86, and what were the results at each stage? Also, a question for product management. Are we intending to support usb-host on Power? I believe the main use case is for Spice, which we're not supporting. (In reply to David Gibson from comment #2) > Having a device simultaneously mounted by the host and passed through to the > guest with usb-host can't possibly work well. I don't quite see how it is > working on x86. first ,I mount the usb stick on /mnt of host,then enter /mnt and stay here second,start a guest with "usb-host" for the usb stick. third,execute "ls" in the /mnt of host,it displays:ls: reading directory .: Input/output error. the usb stick is working for guest now ,so it won't list any thing on /mnt of host,but it dispalys io error info on powerpc.it won't display any error info on x86 ,and it just list nothing like in a empty directory. I filed this bug because I verifyed a similar bug about eject cdrom of guest https://bugzilla.redhat.com/show_bug.cgi?id=1187471 > > What are the exact steps you ran on x86, and what were the results at each > stage? the same steps and list nothing like in a empty directory. Get the needinfo back for David's question in comment 3. |