On Thu, 16 Mar 2023 15:26:05 +0000, Pavel Begunkov wrote:
> | BUG: Bad page state in process kworker/u8:0 pfn:5c001
> | page:00000000bfda61c8 refcount:0 mapcount:0 mapping:0000000000000000 index:0x20001 pfn:0x5c001
> | head:0000000011409842 order:9 entire_mapcount:0 nr_pages_mapped:0 pincount:1
> | anon flags: 0x3fffc00000b0004(uptodate|head|mappedtodisk|swapbacked|node=0|zone=0|lastcpupid=0xffff)
> | raw: 03fffc0000000000 fffffc0000700001 ffffffff00700903 0000000100000000
> | raw: 0000000000000200 0000000000000000 00000000ffffffff 0000000000000000
> | head: 03fffc00000b0004 dead000000000100 dead000000000122 ffff00000a809dc1
> | head: 0000000000020000 0000000000000000 00000000ffffffff 0000000000000000
> | page dumped because: nonzero pincount
> | CPU: 3 PID: 9 Comm: kworker/u8:0 Not tainted 6.3.0-rc2-00001-gc6811bf0cd87 #1
> | Hardware name: linux,dummy-virt (DT)
> | Workqueue: events_unbound io_ring_exit_work
> | Call trace:
> | dump_backtrace+0x13c/0x208
> | show_stack+0x34/0x58
> | dump_stack_lvl+0x150/0x1a8
> | dump_stack+0x20/0x30
> | bad_page+0xec/0x238
> | free_tail_pages_check+0x280/0x350
> | free_pcp_prepare+0x60c/0x830
> | free_unref_page+0x50/0x498
> | free_compound_page+0xcc/0x100
> | free_transhuge_page+0x1f0/0x2b8
> | destroy_large_folio+0x80/0xc8
> | __folio_put+0xc4/0xf8
> | gup_put_folio+0xd0/0x250
> | unpin_user_page+0xcc/0x128
> | io_buffer_unmap+0xec/0x2c0
> | __io_sqe_buffers_unregister+0xa4/0x1e0
> | io_ring_exit_work+0x68c/0x1188
> | process_one_work+0x91c/0x1a58
> | worker_thread+0x48c/0xe30
> | kthread+0x278/0x2f0
> | ret_from_fork+0x10/0x20
>
> [...]
Applied, thanks!
[1/1] io_uring/rsrc: fix folly accounting
commit: d2acf789088bb562cea342b6a24e646df4d47839
Best regards,
--
Jens Axboe
