Bug 901518
Summary: | raid1 devices occasional degraded on boot for no reason | ||||||||
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Product: | [Fedora] Fedora | Reporter: | Tim Waugh <twaugh> | ||||||
Component: | mdadm | Assignee: | Jes Sorensen <Jes.Sorensen> | ||||||
Status: | CLOSED WONTFIX | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | ||||||
Severity: | unspecified | Docs Contact: | |||||||
Priority: | unspecified | ||||||||
Version: | 17 | CC: | agk, dledford, harald, Jes.Sorensen, sschaefer | ||||||
Target Milestone: | --- | ||||||||
Target Release: | --- | ||||||||
Hardware: | Unspecified | ||||||||
OS: | Unspecified | ||||||||
Whiteboard: | |||||||||
Fixed In Version: | Doc Type: | Bug Fix | |||||||
Doc Text: | Story Points: | --- | |||||||
Clone Of: | Environment: | ||||||||
Last Closed: | 2013-08-01 01:08:23 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: | |||||||||
Attachments: |
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Hi Could you please provide /proc/mdstat output from a fully assembled system as well as dmesg output? How many arrays do you have? Thanks, Jes Here's /proc/mdstat from a fully assembled system, except for /dev/md8 for which the external drive is not powered (normal state of affairs). Personalities : [raid1] md5 : active raid1 sda8[2] sdb8[1] 281531260 blocks super 1.1 [2/2] [UU] bitmap: 0/3 pages [0KB], 65536KB chunk md4 : active raid1 sda6[2] sdb6[1] 76798908 blocks super 1.1 [2/2] [UU] bitmap: 0/1 pages [0KB], 65536KB chunk md1 : active raid1 sda1[2] sdb1[1] 10238908 blocks super 1.1 [2/2] [UU] bitmap: 0/1 pages [0KB], 65536KB chunk md3 : active raid1 sda5[2] sdb5[1] 102398908 blocks super 1.1 [2/2] [UU] bitmap: 1/1 pages [4KB], 65536KB chunk md8 : active raid1 sda9[2] sdc1[3] 312569040 blocks super 1.2 [3/2] [UU_] bitmap: 3/3 pages [12KB], 65536KB chunk md124 : active raid1 sda7[0] sdb7[1] 6143936 blocks [2/2] [UU] bitmap: 0/1 pages [0KB], 65536KB chunk md2 : active raid1 sda2[2] sdb2[1] 10238908 blocks super 1.1 [2/2] [UU] bitmap: 1/1 pages [4KB], 65536KB chunk unused devices: <none> The dmesg output in comment #0 is from this point (i.e. after I've correctly assembled the degraded arrays). Would you like dmesg output from a boot which assembles them automatically without problems? I think this is good - is there anything in /var/log/messages or on the console indicating a timeout or an error during the assembly? Created attachment 682398 [details]
messages
Not that I can see. /var/log/messages from boot attached.
The console just has:
Cannot open font file True
Starting Manage, Install and Generate Color Profiles... [ OK ]
Started Manage, Install and Generate Color Profiles.
Starting Daemon for monitoring attached scanners and registering them with colord... [ OK ]
Started Daemon for monitoring attached scanners and registering them with colord.
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Created attachment 682362 [details] dmesg output Description of problem: Every few boots, I'm seeing several degraded raid1 devices. A few 'mdadm /dev/md$n --re-add missing' commands correct the problem until it happens again a few boots later. This has been happening since November last year, and maybe earlier. Version-Release number of selected component (if applicable): mdadm-3.2.6-7.fc17.x86_64 kernel-3.6.11-1.fc17.x86_64 dracut-018-105.git20120927.fc17.noarch systemd-44-23.fc17.x86_64 udev-182-3.fc17.x86_64 How reproducible: Occasional. Steps to Reproduce: 1.I have several raid1 devices configured, mostly with 2 members but one has 3 -- this one usually only has 2 of those members present. Additional info: This reminds me of a race condition that was fixed from several releases back but I can't seem to find the bug ID for it. Attached is the output of 'dmesg' from a degraded boot, including the messages produced from manually re-adding the missing devices some time later.