Messages in this thread | | | Date | Wed, 5 Jun 2013 15:04:42 +0900 | From | Minchan Kim <> | Subject | Re: [PATCH v2 02/10] zram: avoid invalid memory access in zram_exit() |
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On Wed, Jun 05, 2013 at 12:06:00AM +0800, Jiang Liu wrote: > Memory for zram->disk object may have already been freed after returning > from destroy_device(zram), then it's unsafe for zram_reset_device(zram) > to access zram->disk again. > > We can't solve this bug by flipping the order of destroy_device(zram) > and zram_reset_device(zram), that will cause deadlock issues to the > zram sysfs handler.
What kinds of deadlock happen? Could you elaborate it more?
-- Kind regards, Minchan Kim
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