Bug 1262436
Summary: | Shared mount point not keep inconsistent between child and parent processes | ||
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Product: | [Fedora] Fedora | Reporter: | haosdent <haosdent> |
Component: | kernel | Assignee: | Kernel Maintainer List <kernel-maint> |
Status: | CLOSED INSUFFICIENT_DATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
Severity: | unspecified | Docs Contact: | |
Priority: | unspecified | ||
Version: | 22 | CC: | esandeen, gansalmon, itamar, jonathan, kernel-maint, madhu.chinakonda, mchehab, ovasik |
Target Milestone: | --- | Flags: | jforbes:
needinfo?
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Target Release: | --- | ||
Hardware: | Unspecified | ||
OS: | Unspecified | ||
Whiteboard: | |||
Fixed In Version: | Doc Type: | Bug Fix | |
Doc Text: | Story Points: | --- | |
Clone Of: | Environment: | ||
Last Closed: | 2015-11-23 17:17:28 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: |
Description
haosdent
2015-09-11 16:37:21 UTC
It also could reproduce through shell. 1. (In main bash) mount --bind /tmp/source /tmp/target 2. (In main bash) mount --make-shared /tmp/target 3. (Start child bash) unshare -m /bin/bash 4. (In main bash) umount /tmp/target 5. (In main bash) rmdir /tmp/target return `Device or resource busy` 6. (In main bash) cat /proc/self/mountinfo could not see /tmp/target 7. (In child bash) cat /proc/self/mountinfo could found /tmp/target ``` 78 48 8:3 /tmp/source /tmp/target rw,relatime shared:1 - ext4 /dev/disk/by-uuid/98708f21-a59d-4b80-a85c-27b78c22e316 rw,errors=remount-ro,data=ordered ``` Filesystem handles basic system directory layout. It has nothing to do with filesystems generally. Let's move it to kernel filesystem subcomponent, however it may be reassigned later to something else. Adding Eric Sandeen to cc - as he takes care of ext4 (which is mentioned as a filesystem here). *********** MASS BUG UPDATE ************** We apologize for the inconvenience. There is a large number of bugs to go through and several of them have gone stale. Due to this, we are doing a mass bug update across all of the Fedora 22 kernel bugs. Fedora 22 has now been rebased to 4.2.3-200.fc22. Please test this kernel update (or newer) and let us know if you issue has been resolved or if it is still present with the newer kernel. If you have moved on to Fedora 23, and are still experiencing this issue, please change the version to Fedora 23. If you experience different issues, please open a new bug report for those. *********** MASS BUG UPDATE ************** This bug is being closed with INSUFFICIENT_DATA as there has not been a response in over 4 weeks. If you are still experiencing this issue, please reopen and attach the relevant data from the latest kernel you are running and any data that might have been requested previously. |