| Summary: | 4.4 regression, swap in md raid 0 takes very long time to mount | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Michael Cronenworth <mike> |
| Component: | kernel | Assignee: | Kernel Maintainer List <kernel-maint> |
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 23 | CC: | gansalmon, itamar, jonathan, kernel-maint, madhu.chinakonda, mchehab |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | kernel-4.5.5-201.fc23.x86_64 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2016-05-31 15:56:25 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: | |
Still a problem with 4.4.8. This has been fixed in the 4.5.x kernel series. |
Description of problem: Kernel 4.3 and lower mounts swap instantly and does not hinder the boot process. Kernel 4.4 and higher takes up to 1 minute to mount swap and slows down the entire boot process. 100% reproducable. # swapoff -a # swapon -a [hangs for 1+ minutes] # Version-Release number of selected component (if applicable): kernel-4.4.4-301.fc23.x86_64 $ systemd-analyze blame 48.325s dev-disk-by\x2duuid-82886506\x2d6388\x2d4c79\x2d8851\x2da28fe6b 15.305s systemd-udev-settle.service 9.614s systemd-fsck@dev-disk-by\x2duuid-d4b20d46\x2d4cba\x2d4bfc\x2da1 5.615s systemd-tmpfiles-setup.service ... The swap partition is UUID=82886506-6388-4c79-8851-a28fe6b62756. Note: This swap partition is on an MDADM RAID-0 array (version 1.2), across two SSDs, 8GB in size.