Messages in this thread | | | Date | Tue, 13 Oct 2015 22:59:37 +0530 | From | Raghavendra K T <> | Subject | Re: [PATCH] block-mq:Fix the null memory access while setting tags cpumask |
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On 10/13/2015 10:17 PM, Jeff Moyer wrote: > Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com> writes: > >> In nr_hw_queues >1 cases when certain number of cpus are onlined/or >> offlined, that results change in request_queue map in block-mq layer, >> we see the kernel dumping like: > > What version is that patch against? This problem should be fixed by the > patch set from Akinobu Mita. I tested cpu hot-plugging on my system > with an nvme device, and it is fixed there on mainline. >
Hi Jeff,
My patch was against (4.3.0-rc2) bcee19f424a.
I do see now that commit 1356aae08338 (blk-mq: avoid setting hctx->tags->cpumask before allocation) has equivalent fix.
Thanks for the information.
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