Bug 169597
| Summary: | I/O but deadlock with multiple snapshot | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Rocky Lee <rocky366> |
| Component: | lvm2 | Assignee: | Alasdair Kergon <agk> |
| Status: | CLOSED DUPLICATE | QA Contact: | |
| Severity: | high | Docs Contact: | |
| Priority: | medium | ||
| Version: | 3 | ||
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | i386 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2005-10-03 15:28:42 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
*** Bug 169598 has been marked as a duplicate of this bug. *** |
From Bugzilla Helper: User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; KKman3.0) Description of problem: I/O but deadlock with multiple snapshot, if there's more then 3 snapshot devices on one source volume. then trying to put hundreds files to the source volume and sync. the sync process will go to deep-sleep and can't wake up anymore. daemon pdflush also goes to sleep.. Version-Release number of selected component (if applicable): FC3 kernel and LVM2, also test with 2.6.13 kernel has the same result How reproducible: Always Steps to Reproduce: 1.create a source volume lv1. 2.create 3 snapshot volumes s1, s2, s3 with source lv1 3.copy all /usr/local files to the lv1 4.sync or execute the following script for i in 1 2 3 4 5 6; do lvcreate -s -L 128 -n s${I} /dev/VG01/lv1 cp -af /etc /mnt/lv1 sync sleep 5 done Actual Results: copy files to the source volume, then I/O process sleep... can't sync files anymore... Expected Results: success sync. Additional info: