Messages in this thread | | | Date | Thu, 9 Jun 2022 20:02:41 +0900 | From | Sergey Senozhatsky <> | Subject | Re: qemu-arm: zram: mkfs.ext4 : Unable to handle kernel NULL pointer dereference at virtual address 00000140 |
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On (22/06/08 13:45), Minchan Kim wrote: > > I am trying to understand the problem. AFAIK, the mapping_area was > static allocation per cpu so in zs_cpu_down, we never free the > mapping_area itself. Then, why do we need to reinitialize the local > lock again?
Well... Something zero-s out that memory. NULL deref in strcmp() in lockdep points at NULL ->name. So I'm merely testing my theories here. If it's not area lock then it's pool->migrate_lock?
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