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Bug 1926954
| Summary: | virt-sparsify of NTFS image in-place fails with FITRIM ioctl failed: Device or resource busy | ||||||
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| Product: | [Fedora] Fedora | Reporter: | Andrew M. <andrew> | ||||
| Component: | kernel | Assignee: | Kernel Maintainer List <kernel-maint> | ||||
| Status: | NEW --- | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | ||||
| Severity: | unspecified | Docs Contact: | |||||
| Priority: | unspecified | ||||||
| Version: | 33 | CC: | acaringi, adscvr, airlied, alciregi, bskeggs, hdegoede, itamar, jarodwilson, jeremy, jglisse, jonathan, josef, juzhou, kernel-maint, kheine7, lgoncalv, linville, masami256, mchehab, mxie, ptalbert, rjones, steved, tyan, tzheng, xiaodwan, yoguo, zili | ||||
| Target Milestone: | --- | ||||||
| Target Release: | --- | ||||||
| Hardware: | x86_64 | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | |||||||
| : | 1927184 (view as bug list) | Environment: | |||||
| Last Closed: | 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: | 910269, 1927184 | ||||||
| Attachments: |
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I can reproduce the bug. It fails in the same way in virt-rescue too:
$ virt-rescue --ro -a test.qcow2
><rescue> mount -o discard /dev/sda1 /sysroot/
><rescue> fstrim -v /sysroot/
fstrim: /sysroot/: FITRIM ioctl failed: Device or resource busy
With ntfs-3g option -o debug enabled: unique: 4, opcode: GETATTR (3), nodeid: 1, insize: 56 unique: 4, error: 0 (Success), outsize: 120 unique: 6, opcode: GETATTR (3), nodeid: 1, insize: 56 unique: 6, error: 0 (Success), outsize: 120 unique: 8, opcode: GETATTR (3), nodeid: 1, insize: 56 unique: 8, error: 0 (Success), outsize: 120 unique: 10, opcode: ACCESS (34), nodeid: 1, insize: 48 ACCESS / 00 unique: 10, error: 0 (Success), outsize: 16 unique: 12, opcode: OPENDIR (27), nodeid: 1, insize: 48 unique: 12, error: 0 (Success), outsize: 32 unique: 14, opcode: IOCTL (39), nodeid: 1, insize: 96 unique: 14, error: 0 (Success), outsize: 56 fstrim: /sysroot/: FITRIM ioctl failed: Device or resource busy unique: 16, opcode: RELEASEDIR (29), nodeid: 1, insize: 64 unique: 16, error: 0 (Success), outsize: 16 Which makes me think the error must actually be coming from FUSE or the host kernel. (Note that the ioctl call succeeds according to ntfs-3g.) Similar recent bugs: https://bugzilla.redhat.com/show_bug.cgi?id=1922857 https://bbs.archlinux.org/viewtopic.php?id=262243 https://bugzilla.kernel.org/show_bug.cgi?id=211167 I have bisected this in the kernel. Please see my comments on the upstream bug: https://bugzilla.kernel.org/show_bug.cgi?id=211167 *** Bug 1922857 has been marked as a duplicate of this bug. *** Upstream Kernel bug linked above indicates this is resolved, and my test case succeeds now in Fedora using Kernel 5.11.16-300.fc34.x86_64. |
Created attachment 1755998 [details] virt-sparsify-debug.log Description of problem: Attempting to in-place sparsify an NTFS image fails. Version-Release number of selected component (if applicable): libguestfs-1:1.43.2-2.fc33.x86_64 libguestfs-tools-1:1.43.2-2.fc33.noarch How reproducible: Always Steps to Reproduce: 1. Create NTFS qcow2 image ``` guestfish <<EOF disk-create test.qcow2 qcow2 1G add test.qcow2 run part-disk /dev/sda gpt mkfs ntfs /dev/sda1 EOF ``` 2. virt-sparsify --in-place -x -v test.qcow2 (this also occurs on a qcow2 image from a clean Windows install) Actual results: virt-sparsify: error: libguestfs error: fstrim: fstrim: /sysroot/: FITRIM ioctl failed: Device or resource busy Expected results: Sparsify in-place operation completed with no errors Additional info: - Omitting `--in-place` and specifying a destination image works. - Tested with vfat and ext4 instead of ntfs; both were successful with in-place. - Debug log is attached - libguestfs-test-tool reports OK