[Bug 1147412] bcache-register fails during boot, leaving backing store busy

http://bugzilla.suse.com/show_bug.cgi?id=1147412 http://bugzilla.suse.com/show_bug.cgi?id=1147412#c10 --- Comment #10 from Coly Li --- (In reply to Coly Li from comment #8)

I find a bug in bcache btree code which may cause a dirty btree node being lack of journal protection from a power failure. The result might be an inconsistent and broken btree node, and trigger a similar panic as the port listed.

Now I am working on a fix and will test it.

Coly Li

P.S the fix looks like this,

commit d48baef4543246ef910b262959ae89c5a6d197f7 Author: Coly Li Date: Wed Sep 25 22:16:33 2019 +0800

bcache: fix fifo index swapping condition in journal_pin_cmp()

This patch is invalid, the original code is correct. So far I don't find any suspicious place from the code. Now I am doing bcache backport for a series fixes, let's see weather these fixes may be a bit helpful. -- You are receiving this mail because: You are on the CC list for the bug.