Messages in this thread | | | Date | Fri, 4 Sep 2015 12:47:29 -0400 | From | Tejun Heo <> | Subject | Re: [PATCH] writeback: verify that underlying dev exists before getting its name |
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On Fri, Sep 04, 2015 at 12:45:18PM -0400, Sasha Levin wrote: > We can't assume there is always an underlying device and must verify that > as well. Otherwise, we'd deref a NULL ptr here.
Do you have backtrace of this happening? There's a bug in cleanup path which causes oops (patch is being tested) and this may just be a symptom of the same problem.
Thanks.
-- tejun
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