program: socket(0xa, 0xa, 0x3) [ 83.789588][ T48] Bluetooth: hci0: command tx timeout [ 83.834694][ T28] page: refcount:2 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x119ac [ 83.838823][ T28] flags: 0xfff00000010001(locked|reclaim|node=0|zone=1|lastcpupid=0x7ff) [ 83.843348][ T28] raw: 00fff00000010001 ffffc900004ef2b0 ffffc900004ef2b0 ffffffff8c1850c2 [ 83.854199][ T28] raw: 0000000000000003 0000000000000002 00000002ffffffff 0000000000000000 [ 83.874859][ T28] page dumped because: VM_BUG_ON_PAGE(!((__builtin_constant_p(PAGE_CLAIMED) && __builtin_constant_p((uintptr_t)(&page->private) != (uintptr_t)((void *)0)) && (uintptr_t)(&page->private) != (uintptr_t)((void *)0) && __builtin_constant_p(*(const unsigned long *)(&page->private))) ? const_test_bit(PAGE_CLAIMED, &page->private) : _test_bit(PAGE_CLAIMED, &page->private))) [ 83.894542][ T28] page_owner tracks the page as allocated [ 83.897008][ T28] page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12800(GFP_NOWAIT|__GFP_NORETRY), pid 73, tgid 73 (kswapd0), ts 82183180271, free_ts 82177345541 [ 83.903168][ T28] post_alloc_hook+0x1f3/0x230 [ 83.905661][ T28] get_page_from_freelist+0x3045/0x3190 [ 83.907792][ T28] __alloc_pages_noprof+0x256/0x6c0 [ 83.909683][ T28] alloc_pages_mpol_noprof+0x3e8/0x680 [ 83.911930][ T28] z3fold_zpool_malloc+0x3d1/0xe70 [ 83.914132][ T28] zswap_store+0xec7/0x1a00 [ 83.916426][ T28] swap_writepage+0x790/0xcd0 [ 83.918613][ T28] shrink_folio_list+0x3c0e/0x8cc0 [ 83.920668][ T28] evict_folios+0x549b/0x7b50 [ 83.922450][ T28] try_to_shrink_lruvec+0x9ab/0xbb0 [ 83.924533][ T28] shrink_one+0x3b9/0x850 [ 83.926274][ T28] shrink_node+0x3799/0x3de0 [ 83.928065][ T28] kswapd+0x1ca3/0x3700 [ 83.929862][ T28] kthread+0x2f0/0x390 [ 83.931882][ T28] ret_from_fork+0x4b/0x80 [ 83.933684][ T28] ret_from_fork_asm+0x1a/0x30 [ 83.935590][ T28] page last free pid 73 tgid 73 stack trace: [ 83.937590][ T28] free_unref_folios+0xf12/0x18d0 [ 83.939422][ T28] shrink_folio_list+0x81fd/0x8cc0 [ 83.941303][ T28] evict_folios+0x549b/0x7b50 [ 83.943011][ T28] try_to_shrink_lruvec+0x9ab/0xbb0 [ 83.944792][ T28] shrink_one+0x3b9/0x850 [ 83.946250][ T28] shrink_node+0x3799/0x3de0 [ 83.948052][ T28] kswapd+0x1ca3/0x3700 [ 83.949780][ T28] kthread+0x2f0/0x390 [ 83.952291][ T28] ret_from_fork+0x4b/0x80 [ 83.954240][ T28] ret_from_fork_asm+0x1a/0x30 [ 83.956246][ T28] ------------[ cut here ]------------ [ 83.958183][ T28] kernel BUG at mm/z3fold.c:1293! [ 83.960028][ T28] Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI [ 83.962688][ T28] CPU: 0 UID: 0 PID: 28 Comm: kcompactd0 Not tainted 6.12.0-rc2-syzkaller-00058-g75b607fab38d #0 [ 83.968227][ T28] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 83.972918][ T28] RIP: 0010:z3fold_page_migrate+0xc22/0x1170 [ 83.975174][ T28] Code: ff 48 89 ef 48 c7 c6 60 52 18 8c e8 88 74 d5 ff 90 0f 0b e8 50 fa 89 ff 48 8b 7c 24 10 48 c7 c6 c0 52 18 8c e8 6f 74 d5 ff 90 <0f> 0b 48 85 db 0f 85 83 00 00 00 0f 1f 44 00 00 e8 29 fa 89 ff e9 [ 83.982260][ T28] RSP: 0000:ffffc900004eed38 EFLAGS: 00010246 [ 83.984954][ T28] RAX: dc7f3d65dba53b00 RBX: 0000000000000000 RCX: 0000000000000001 [ 83.988674][ T28] RDX: dffffc0000000000 RSI: ffffffff8c0acac0 RDI: 0000000000000001 [ 83.992390][ T28] RBP: ffffea0000466b00 R08: ffffffff901cee2f R09: 1ffffffff2039dc5 [ 83.995464][ T28] R10: dffffc0000000000 R11: fffffbfff2039dc6 R12: ffffea0000466b00 [ 83.998537][ T28] R13: ffffffff8c1850c8 R14: 00fff00000010001 R15: 1ffffd400008cd60 [ 84.001348][ T28] FS: 0000000000000000(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 [ 84.005555][ T28] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 84.009845][ T28] CR2: 00007fbcb4a4e770 CR3: 000000000e734000 CR4: 0000000000352ef0 [ 84.013067][ T28] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 84.016302][ T28] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 84.019467][ T28] Call Trace: [ 84.020774][ T28] [ 84.023005][ T28] ? __die_body+0x5f/0xb0 [ 84.025216][ T28] ? die+0x9e/0xc0 [ 84.026911][ T28] ? do_trap+0x15a/0x3a0 [ 84.028720][ T28] ? z3fold_page_migrate+0xc22/0x1170 [ 84.030988][ T28] ? do_error_trap+0x1dc/0x2c0 [ 84.032801][ T28] ? z3fold_page_migrate+0xc22/0x1170 [ 84.035089][ T28] ? __pfx_do_error_trap+0x10/0x10 [ 84.037030][ T28] ? handle_invalid_op+0x34/0x40 [ 84.038918][ T28] ? z3fold_page_migrate+0xc22/0x1170 [ 84.040898][ T28] ? exc_invalid_op+0x38/0x50 [ 84.042752][ T28] ? asm_exc_invalid_op+0x1a/0x20 [ 84.044730][ T28] ? z3fold_page_migrate+0xc22/0x1170 [ 84.046859][ T28] ? z3fold_page_migrate+0xc21/0x1170 [ 84.048715][ T28] ? __pfx_lock_release+0x10/0x10 [ 84.050651][ T28] ? PageMovable+0x13c/0x3f0 [ 84.052493][ T28] move_to_new_folio+0x9f3/0x1330 [ 84.054663][ T28] ? page_ext_get+0x1d6/0x2a0 [ 84.056707][ T28] ? __pfx_move_to_new_folio+0x10/0x10 [ 84.059302][ T28] ? post_alloc_hook+0x206/0x230 [ 84.061655][ T28] ? compaction_alloc+0x3381/0x3960 [ 84.063729][ T28] ? do_raw_spin_unlock+0x58/0x8b0 [ 84.065635][ T28] ? __pfx___might_resched+0x10/0x10 [ 84.067565][ T28] ? __pfx___folio_put+0x10/0x10 [ 84.069367][ T28] ? migrate_folio_done+0x254/0x4a0 [ 84.071365][ T28] ? folio_unlock+0x126/0x2f0 [ 84.073128][ T28] migrate_pages_batch+0x266b/0x36d0 [ 84.075756][ T28] ? __pfx_compaction_free+0x10/0x10 [ 84.079013][ T28] ? __pfx_migrate_pages_batch+0x10/0x10 [ 84.081806][ T28] ? __pfx_lock_acquire+0x10/0x10 [ 84.083761][ T28] ? isolate_movable_page+0x2a/0xbf0 [ 84.085571][ T28] migrate_pages+0x2734/0x3560 [ 84.087297][ T28] ? __pfx_compaction_free+0x10/0x10 [ 84.089071][ T28] ? __pfx_compaction_alloc+0x10/0x10 [ 84.090780][ T28] ? __pfx_migrate_pages+0x10/0x10 [ 84.092426][ T28] ? folio_putback_lru+0x99/0xd0 [ 84.094443][ T28] compact_zone+0x3404/0x4af0 [ 84.096299][ T28] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 84.099792][ T28] ? mark_lock+0x9a/0x360 [ 84.101990][ T28] ? __lock_acquire+0x1384/0x2050 [ 84.104243][ T28] ? __pfx_compact_zone+0x10/0x10 [ 84.106201][ T28] compact_node+0x2de/0x460 [ 84.107824][ T28] ? __pfx_compact_node+0x10/0x10 [ 84.109713][ T28] ? fragmentation_score_node+0x322/0x340 [ 84.111716][ T28] kcompactd+0x788/0x1530 [ 84.113253][ T28] ? __pfx_kcompactd+0x10/0x10 [ 84.115250][ T28] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 84.117623][ T28] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 84.119980][ T28] ? __pfx_autoremove_wake_function+0x10/0x10 [ 84.123037][ T28] ? __kthread_parkme+0x169/0x1d0 [ 84.125573][ T28] ? __pfx_kcompactd+0x10/0x10 [ 84.127588][ T28] kthread+0x2f0/0x390 [ 84.129017][ T28] ? __pfx_kcompactd+0x10/0x10 [ 84.130758][ T28] ? __pfx_kthread+0x10/0x10 [ 84.132528][ T28] ret_from_fork+0x4b/0x80 [ 84.134305][ T28] ? __pfx_kthread+0x10/0x10 [ 84.136393][ T28] ret_from_fork_asm+0x1a/0x30 [ 84.138504][ T28] [ 84.139965][ T28] Modules linked in: [ 84.141927][ T28] ---[ end trace 0000000000000000 ]--- [ 84.364554][ T28] RIP: 0010:z3fold_page_migrate+0xc22/0x1170 [ 84.367299][ T28] Code: ff 48 89 ef 48 c7 c6 60 52 18 8c e8 88 74 d5 ff 90 0f 0b e8 50 fa 89 ff 48 8b 7c 24 10 48 c7 c6 c0 52 18 8c e8 6f 74 d5 ff 90 <0f> 0b 48 85 db 0f 85 83 00 00 00 0f 1f 44 00 00 e8 29 fa 89 ff e9 [ 84.384722][ T28] RSP: 0000:ffffc900004eed38 EFLAGS: 00010246 [ 84.388295][ T28] RAX: dc7f3d65dba53b00 RBX: 0000000000000000 RCX: 0000000000000001 [ 84.391301][ T28] RDX: dffffc0000000000 RSI: ffffffff8c0acac0 RDI: 0000000000000001 [ 84.394068][ T28] RBP: ffffea0000466b00 R08: ffffffff901cee2f R09: 1ffffffff2039dc5 [ 84.404466][ T28] R10: dffffc0000000000 R11: fffffbfff2039dc6 R12: ffffea0000466b00 [ 84.407555][ T28] R13: ffffffff8c1850c8 R14: 00fff00000010001 R15: 1ffffd400008cd60 [ 84.411316][ T28] FS: 0000000000000000(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 [ 84.424450][ T28] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 84.428533][ T28] CR2: 00007fbcb499c580 CR3: 0000000000fc0000 CR4: 0000000000352ef0 [ 84.431583][ T28] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 84.444605][ T28] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 84.448585][ T28] Kernel panic - not syncing: Fatal exception [ 84.451134][ T28] Kernel Offset: disabled [ 84.452744][ T28] Rebooting in 86400 seconds..