https://bugzilla.kernel.org/show_bug.cgi?id=220575
--- Comment #15 from JY ([email protected]) --- (In reply to Chao Yu from comment #7) > Can you please hook fscrypt_free_bounce_page() to set page private w/ > special value, something as below: > > void fscrypt_free_bounce_page(struct page *bounce_page) > { > if (!bounce_page) > return; > set_page_private(bounce_page, (unsigned long)0xF2F52011); > ClearPagePrivate(bounce_page); > mempool_free(bounce_page, fscrypt_bounce_page_pool); > } > > And add some check conditions in f2fs_is_cp_guaranteed() to see whether the > page has been freed before inc_page_count(). By the way, this is my test result. Is that another issue? [27024.604851] JY f2fs_is_cp_guaranteed 65 bounced_page:0xfffffffe81338410, _private:0xfffffffe813c54f0, fscrypt_pagecache_page(page):0x000000005566f2f5 [27024.620405] JYJY :fffffffe813c54f0 is the PAGE [27024.626388] page: refcount:4 mapcount:1 mapping:000000008cdd016b index:0x1d pfn:0x3f443 [27024.636025] memcg:ffffff8031bd0000 [27024.641269] flags: 0x1000000000009029(locked|uptodate|lru|owner_2|private|zone=0) [27024.650060] raw: 1000000000009029 fffffffe813c54a8 fffffffe813bc588 ffffff806b096f68 [27024.660600] raw: 000000000000001d 0000000000000009 0000000400000000 ffffff8031bd0000 [27024.669271] raw: 000000003f443000 0000000000000000 [27024.675745] page dumped because: JY got the BUG! [27024.683789] page_owner tracks the page as allocated [27024.690777] page last allocated via order 0, migratetype Movable, gfp_mask 0x152c4a(GFP_NOFS|__GFP_HIGHMEM|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_HARDWALL|__GFP_MOVABLE), pid 30372, tgid 30372 (android.vending), ts 27014734256272, free_ts 27002686350166 [27024.724435] post_alloc_hook+0x1d0/0x1e8 [27024.730550] prep_new_page+0x30/0x150 [27024.735185] get_page_from_freelist+0x11e8/0x127c [27024.744799] __alloc_pages_noprof+0x1b0/0x448 [27024.753649] __folio_alloc_noprof+0x1c/0x64 [27024.759063] page_cache_ra_unbounded+0x1a4/0x36c [27024.767626] page_cache_ra_order+0x358/0x434 [27024.774150] do_sync_mmap_readahead+0x20c/0x280 [27024.780541] filemap_fault+0x1e0/0x868 [27024.785950] f2fs_filemap_fault+0x34/0xec [27024.792392] __do_fault+0x70/0x110 [27024.797172] do_pte_missing+0x300/0x12f0 [27024.802556] handle_mm_fault+0x4d4/0x818 [27024.808201] do_page_fault+0x210/0x640 [27024.813143] do_translation_fault+0x48/0x11c [27024.818658] do_mem_abort+0x5c/0x108 [27024.824631] page last free pid 55 tgid 55 stack trace: [27024.831407] free_unref_page+0x828/0x978 [27024.837039] __folio_put+0xac/0xdc [27024.842449] migrate_pages_batch+0x127c/0x1894 [27024.849239] migrate_pages+0x3f0/0x798 [27024.856057] compact_zone+0xca8/0x12ec [27024.861241] compact_node+0xc0/0x190 [27024.865955] kcompactd+0x3b8/0x978 [27024.872656] kthread+0x118/0x1ac [27024.878257] ret_from_fork+0x10/0x20[27024.604851] JY f2fs_is_cp_guaranteed 65 bounced_page:0xfffffffe81338410, _private:0xfffffffe813c54f0, fscrypt_pagecache_page(page):0x000000005566f2f5 [27024.620405] JYJY :fffffffe813c54f0 is the PAGE [27024.626388] page: refcount:4 mapcount:1 mapping:000000008cdd016b index:0x1d pfn:0x3f443 [27024.636025] memcg:ffffff8031bd0000 [27024.641269] flags: 0x1000000000009029(locked|uptodate|lru|owner_2|private|zone=0) [27024.650060] raw: 1000000000009029 fffffffe813c54a8 fffffffe813bc588 ffffff806b096f68 [27024.660600] raw: 000000000000001d 0000000000000009 0000000400000000 ffffff8031bd0000 [27024.669271] raw: 000000003f443000 0000000000000000 [27024.675745] page dumped because: JY got the BUG! [27024.683789] page_owner tracks the page as allocated [27024.690777] page last allocated via order 0, migratetype Movable, gfp_mask 0x152c4a(GFP_NOFS|__GFP_HIGHMEM|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_HARDWALL|__GFP_MOVABLE), pid 30372, tgid 30372 (android.vending), ts 27014734256272, free_ts 27002686350166 [27024.724435] post_alloc_hook+0x1d0/0x1e8 [27024.730550] prep_new_page+0x30/0x150 [27024.735185] get_page_from_freelist+0x11e8/0x127c [27024.744799] __alloc_pages_noprof+0x1b0/0x448 [27024.753649] __folio_alloc_noprof+0x1c/0x64 [27024.759063] page_cache_ra_unbounded+0x1a4/0x36c [27024.767626] page_cache_ra_order+0x358/0x434 [27024.774150] do_sync_mmap_readahead+0x20c/0x280 [27024.780541] filemap_fault+0x1e0/0x868 [27024.785950] f2fs_filemap_fault+0x34/0xec [27024.792392] __do_fault+0x70/0x110 [27024.797172] do_pte_missing+0x300/0x12f0 [27024.802556] handle_mm_fault+0x4d4/0x818 [27024.808201] do_page_fault+0x210/0x640 [27024.813143] do_translation_fault+0x48/0x11c [27024.818658] do_mem_abort+0x5c/0x108 [27024.824631] page last free pid 55 tgid 55 stack trace: [27024.831407] free_unref_page+0x828/0x978 [27024.837039] __folio_put+0xac/0xdc [27024.842449] migrate_pages_batch+0x127c/0x1894 [27024.849239] migrate_pages+0x3f0/0x798 [27024.856057] compact_zone+0xca8/0x12ec [27024.861241] compact_node+0xc0/0x190 [27024.865955] kcompactd+0x3b8/0x978 [27024.872656] kthread+0x118/0x1ac [27024.878257] ret_from_fork+0x10/0x20 -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. _______________________________________________ Linux-f2fs-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
