Messages in this thread | | | Subject | Re: block, bfq: NULL pointer dereference in bfq_rq_pos_tree_lookup() | From | Paolo Valente <> | Date | Wed, 12 May 2021 11:49:34 +0200 |
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> Il giorno 8 mag 2021, alle ore 06:49, Mike Galbraith <efault@gmx.de> ha scritto: > > On Mon, 2021-05-03 at 14:41 +0200, Mike Galbraith wrote: >> On Mon, 2021-05-03 at 11:52 +0200, Paolo Valente wrote: >>> Hi Mike, >>> I've waited a little bit before replying, because I've worked on a dev >>> patch series, for debugging another crash. I'd like to use >>> this series for your failure too, as the OOPS you report >>> unfortunately does not ring any bell :( >>> >>> So, could you please try to apply this patch series? If it doesn't >>> apply, I'll rebase it. >> >> This bug isn't deterministic, but I can wedge your set into my devel >> trees, and see if anything falls out. > > What fell out was not the least bit useful. After days of box working > just fine despite bug being given ample enticement, it didn't take the > bait. I then build master sans patch set, which exploded on its very > first distro build, after which bug (snickered mightily and) went back > to into hiding. >
Not easy to debug this way :)
At any rate, I've just posted the fix contained in my debug patch series.
Thanks, Paolo
> -Mike >
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