Bug 200819
| Summary: | dm-writecache: kernel oops on creation | ||
|---|---|---|---|
| Product: | IO/Storage | Reporter: | edo (edo.rus) |
| Component: | LVM2/DM | Assignee: | Mike Snitzer (snitzer) |
| Status: | RESOLVED CODE_FIX | ||
| Severity: | normal | CC: | mpatocka, snitzer |
| Priority: | P1 | ||
| Hardware: | x86-64 | ||
| OS: | Linux | ||
| Kernel Version: | 4.18.0 | Subsystem: | |
| Regression: | No | Bisected commit-id: | |
| Attachments: |
dmesg output
A patch for this bug |
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Created attachment 277899 [details]
A patch for this bug
Try this patch
(In reply to Mikulas Patocka from comment #1) > Created attachment 277899 [details] > A patch for this bug > > Try this patch I've staged this fix for the current 4.19 merge window: https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git/commit/?h=dm-4.19&id=690ebae429de8e8a80fc32fb15dd02c50cdb1de1 I'll likely send to Linus tomorrow. (In reply to Mike Snitzer from comment #2) > I've staged this fix for the current 4.19 merge window: > https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git/ > commit/?h=dm-4.19&id=690ebae429de8e8a80fc32fb15dd02c50cdb1de1 Revised patch subject to say: "dm writecache: fix a crash due to reading past end of dirty_bitmap" updated commit is here: https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git/commit/?h=dm-4.19&id=1e1132ea21da6d7be92a72195204379c819cb70b This patch works to me, thanks. |
Created attachment 277875 [details] dmesg output my commandline is ``` dmsetup create wc --table "0 1000000 writecache s /dev/sdb3 /dev/sda5 4096 0" ```