Hi, here is the stack: Nov 06 16:25:11 nas kernel: sysrq: Show Blocked State Nov 06 16:25:11 nas kernel: task:kswapd0 state:D stack: 0 pid: 45 ppid: 2 flags:0x00000000 Nov 06 16:25:11 nas kernel: Backtrace: Nov 06 16:25:11 nas kernel: [<c08d1f60>] (__schedule) from [<c08d2944>] (schedule+0x78/0x138) Nov 06 16:25:11 nas kernel: r10:00000000 r9:c08d32a4 r8:dbf68b40 r7:bf7ff8f0 r6:c873c400 r5:c12eabe0 Nov 06 16:25:11 nas kernel: r4:ffffe000 Nov 06 16:25:11 nas kernel: [<c08d28cc>] (schedule) from [<c022b258>] (__wait_on_freeing_inode+0x88/0xb8) Nov 06 16:25:11 nas kernel: r5:c0c2c758 r4:c0c2d028 Nov 06 16:25:11 nas kernel: [<c022b1d0>] (__wait_on_freeing_inode) from [<c022b30c>] (find_inode+0x84/0xc8) Nov 06 16:25:11 nas kernel: r5:c77570b0 r4:c8f46c30 Nov 06 16:25:11 nas kernel: [<c022b288>] (find_inode) from [<c022b398>] (ilookup5_nowait+0x48/0x5c) Nov 06 16:25:11 nas kernel: r9:c08d32a4 r8:c873c400 r7:0000acf7 r6:bf7ff8f0 r5:00007fff r4:c0c2d970 Nov 06 16:25:11 nas kernel: [<c022b350>] (ilookup5_nowait) from [<c022caa8>] (ilookup5.part.9+0x3c/0x90) Nov 06 16:25:11 nas kernel: r5:c77570b0 r4:c77570b0 Nov 06 16:25:11 nas kernel: [<c022ca6c>] (ilookup5.part.9) from [<c022cee8>] (iget5_locked+0x30/0x88) Nov 06 16:25:11 nas kernel: r9:00000000 r8:bf7ff91c r7:bf7ff8f0 r6:0000acf7 r5:c873c400 r4:c77570b0 Nov 06 16:25:11 nas kernel: [<c022ceb8>] (iget5_locked) from [<bf800ec0>] (ntfs_iget5+0x40/0xf44 [ntfs3]) Nov 06 16:25:11 nas kernel: r8:c7757098 r7:c77570b0 r6:c873c400 r5:c0c2d028 r4:c77570b0 Nov 06 16:25:11 nas kernel: [<bf800e80>] (ntfs_iget5 [ntfs3]) from [<bf7f413c>] (ni_write_inode+0x8f8/0xe08 [ntfs3]) Nov 06 16:25:11 nas kernel: r10:00000000 r9:00000000 r8:c7757098 r7:c77570b0 r6:c873c400 r5:c0c2d028 Nov 06 16:25:11 nas kernel: r4:d1a34c30 Nov 06 16:25:11 nas kernel: [<bf7f3844>] (ni_write_inode [ntfs3]) from [<bf8034c4>] (ntfs_evict_inode+0x60/0x68 [ntfs3]) Nov 06 16:25:11 nas kernel: r10:c873c660 r9:c873c400 r8:0000012d r7:000002d4 r6:000002d3 r5:bf810804 Nov 06 16:25:11 nas kernel: r4:d1a34c30 Nov 06 16:25:11 nas kernel: [<bf803464>] (ntfs_evict_inode [ntfs3]) from [<c022c304>] (evict+0x94/0x13c) Nov 06 16:25:11 nas kernel: r5:bf810804 r4:d1a34c30 Nov 06 16:25:11 nas kernel: [<c022c270>] (evict) from [<c022c3f0>] (dispose_list+0x44/0x58) Nov 06 16:25:11 nas kernel: r5:c0c2d028 r4:c12d1d64 Nov 06 16:25:11 nas kernel: [<c022c3ac>] (dispose_list) from [<c022d234>] (prune_icache_sb+0x5c/0x84) Nov 06 16:25:11 nas kernel: r5:c0c2d028 r4:c12d1d64 Nov 06 16:25:11 nas kernel: [<c022d1d8>] (prune_icache_sb) from [<c021074c>] (super_cache_scan+0x120/0x170) Nov 06 16:25:11 nas kernel: r6:000005bd r5:00000000 r4:c12d1e48 Nov 06 16:25:11 nas kernel: [<c021062c>] (super_cache_scan) from [<c019c230>] (do_shrink_slab+0x1d0/0x3ac) Nov 06 16:25:11 nas kernel: r10:00000000 r9:00000000 r8:c0cb57ec r7:00000400 r6:c12d1e48 r5:c873c660 Nov 06 16:25:11 nas kernel: r4:0000040d Nov 06 16:25:11 nas kernel: [<c019c060>] (do_shrink_slab) from [<c019f0a4>] (shrink_slab+0xb8/0x2bc) Nov 06 16:25:11 nas kernel: r10:00000000 r9:c0cb1240 r8:c0cb1220 r7:00000000 r6:00000752 r5:c12d1e50 Nov 06 16:25:11 nas kernel: r4:c873c660 Nov 06 16:25:11 nas kernel: [<c019efec>] (shrink_slab) from [<c01a139c>] (shrink_node+0x278/0x74c) Nov 06 16:25:11 nas kernel: r10:00009023 r9:00000000 r8:c0d5caa8 r7:c0d5c46c r6:c12d1efc r5:c12d1f24 Nov 06 16:25:11 nas kernel: r4:00000000 Nov 06 16:25:11 nas kernel: [<c01a1124>] (shrink_node) from [<c01a20a4>] (kswapd+0x424/0x9d0) Nov 06 16:25:11 nas kernel: r10:00000001 r9:c0d5c46c r8:00000000 r7:00000001 r6:00000001 r5:00000000 Nov 06 16:25:11 nas kernel: r4:00009023 Nov 06 16:25:11 nas kernel: [<c01a1c80>] (kswapd) from [<c0046da8>] (kthread+0x144/0x16c) Nov 06 16:25:11 nas kernel: r10:c129a2dc r9:c112be28 r8:c12d0000 r7:c0d5c46c r6:c01a1c80 r5:c128adc0 Nov 06 16:25:11 nas kernel: r4:c129a2c0 Nov 06 16:25:11 nas kernel: [<c0046c64>] (kthread) from [<c00082f4>] (ret_from_fork+0x14/0x20) Nov 06 16:25:11 nas kernel: Exception stack(0xc12d1fb0 to 0xc12d1ff8) Nov 06 16:25:11 nas kernel: 1fa0: 00000000 00000000 00000000 00000000 Nov 06 16:25:11 nas kernel: 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Nov 06 16:25:11 nas kernel: 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 Nov 06 16:25:11 nas kernel: r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:c0046c64 Nov 06 16:25:11 nas kernel: r4:c128adc0 r3:60000093 Nov 06 16:25:11 nas kernel: task:smbd state:D stack: 0 pid: 7705 ppid: 6239 flags:0x00000000 Nov 06 16:25:11 nas kernel: Backtrace: Nov 06 16:25:11 nas kernel: [<c08d1f60>] (__schedule) from [<c08d2944>] (schedule+0x78/0x138) Nov 06 16:25:11 nas kernel: r10:c0c2d77c r9:00000000 r8:00000102 r7:c0d5c46c r6:c0c2d028 r5:c234abe0 Nov 06 16:25:11 nas kernel: r4:ffffe000 Nov 06 16:25:11 nas kernel: [<c08d28cc>] (schedule) from [<c019c8e4>] (throttle_direct_reclaim+0x2e0/0x2f4) Nov 06 16:25:11 nas kernel: r5:c0d5c46c r4:c0f17b30 Nov 06 16:25:11 nas kernel: [<c019c604>] (throttle_direct_reclaim) from [<c01a2b34>] (try_to_free_pages+0xbc/0x1cc) Nov 06 16:25:11 nas kernel: r9:00000000 r8:00000000 r7:c0d5ca3c r6:00000000 r5:c0c2d028 r4:00000cc0 Nov 06 16:25:11 nas kernel: [<c01a2a78>] (try_to_free_pages) from [<c01dd81c>] (__alloc_pages+0x4f0/0xf2c) Nov 06 16:25:11 nas kernel: r8:00000000 r7:00008000 r6:00000000 r5:00400140 r4:00000000 Nov 06 16:25:11 nas kernel: [<c01dd32c>] (__alloc_pages) from [<c0734c68>] (skb_page_frag_refill+0xdc/0x104) Nov 06 16:25:11 nas kernel: r10:00008000 r9:00007e88 r8:c37e0dc0 r7:00008000 r6:c37e0ebc r5:00000cc0 Nov 06 16:25:11 nas kernel: r4:c234b1d0 Nov 06 16:25:11 nas kernel: [<c0734b8c>] (skb_page_frag_refill) from [<c0734cd0>] (sk_page_frag_refill+0x24/0x78) Nov 06 16:25:11 nas kernel: r5:c0f17f38 r4:c37e0dc0 Nov 06 16:25:11 nas kernel: [<c0734cac>] (sk_page_frag_refill) from [<c07f2590>] (tcp_sendmsg_locked+0x344/0xe8c) Nov 06 16:25:11 nas kernel: r5:c0f17f38 r4:c6395300 Nov 06 16:25:11 nas kernel: [<c07f224c>] (tcp_sendmsg_locked) from [<c07f3110>] (tcp_sendmsg+0x38/0x4c) Nov 06 16:25:11 nas kernel: r10:c0f17ddc r9:c0c2d028 r8:00000000 r7:cfb79380 r6:00020054 r5:c0f17f38 Nov 06 16:25:11 nas kernel: r4:c37e0dc0 Nov 06 16:25:11 nas kernel: [<c07f30d8>] (tcp_sendmsg) from [<c082cae8>] (inet_sendmsg+0x44/0x78) Nov 06 16:25:11 nas kernel: r7:cfb79380 r6:00000000 r5:cfb79380 r4:c37e0dc0 Nov 06 16:25:11 nas kernel: [<c082caa4>] (inet_sendmsg) from [<c0730b08>] (sock_sendmsg+0x44/0x54) Nov 06 16:25:11 nas kernel: r4:c0f17f38 Nov 06 16:25:11 nas kernel: [<c0730ac4>] (sock_sendmsg) from [<c0730ec4>] (____sys_sendmsg+0x1e8/0x21c) Nov 06 16:25:11 nas kernel: r5:00000040 r4:c0f17f38 Nov 06 16:25:11 nas kernel: [<c0730cdc>] (____sys_sendmsg) from [<c0732a24>] (___sys_sendmsg+0x78/0xa8) Nov 06 16:25:11 nas kernel: r10:00000000 r9:00000000 r8:00000000 r7:cfb79380 r6:00000000 r5:c0c2d028 Nov 06 16:25:11 nas kernel: r4:c0f17f38 Nov 06 16:25:11 nas kernel: [<c07329ac>] (___sys_sendmsg) from [<c0732e18>] (__sys_sendmsg+0x5c/0x9c) Nov 06 16:25:11 nas kernel: r9:c0f16000 r8:c00083e4 r7:cfb79380 r6:00000000 r5:be911558 r4:c0c2d028 Nov 06 16:25:11 nas kernel: [<c0732dbc>] (__sys_sendmsg) from [<c0732e74>] (sys_sendmsg+0x1c/0x20) Nov 06 16:25:11 nas kernel: r7:00000128 r6:00000000 r5:b247e080 r4:00000035 Nov 06 16:25:11 nas kernel: [<c0732e58>] (sys_sendmsg) from [<c0008260>] (ret_fast_syscall+0x0/0x1c) Nov 06 16:25:11 nas kernel: Exception stack(0xc0f17fa8 to 0xc0f17ff0) Nov 06 16:25:11 nas kernel: 7fa0: 00000035 b247e080 00000035 be911558 00000000 00000000 Nov 06 16:25:11 nas kernel: 7fc0: 00000035 b247e080 00000000 00000128 b6e33798 b6e337c0 0127a8b0 00000005 Nov 06 16:25:11 nas kernel: 7fe0: 00000000 be911538 00000000 b6723254 Nov 06 16:25:11 nas kernel: task:smbd state:D stack: 0 pid: 8839 ppid: 6239 flags:0x00000000 Nov 06 16:25:11 nas kernel: Backtrace: Nov 06 16:25:11 nas kernel: [<c08d1f60>] (__schedule) from [<c08d2944>] (schedule+0x78/0x138) Nov 06 16:25:11 nas kernel: r10:c0c2d77c r9:00000000 r8:00000102 r7:c0d5c46c r6:c0c2d028 r5:c1930ea0 Nov 06 16:25:11 nas kernel: r4:ffffe000 Nov 06 16:25:11 nas kernel: [<c08d28cc>] (schedule) from [<c019c8e4>] (throttle_direct_reclaim+0x2e0/0x2f4) Nov 06 16:25:11 nas kernel: r5:c0d5c46c r4:d46cfc10 Nov 06 16:25:11 nas kernel: [<c019c604>] (throttle_direct_reclaim) from [<c01a2b34>] (try_to_free_pages+0xbc/0x1cc) Nov 06 16:25:11 nas kernel: r9:00000000 r8:00000000 r7:c0d5ca3c r6:00000000 r5:c0c2d028 r4:01100cca Nov 06 16:25:11 nas kernel: [<c01a2a78>] (try_to_free_pages) from [<c01dd81c>] (__alloc_pages+0x4f0/0xf2c) Nov 06 16:25:11 nas kernel: r8:00000000 r7:00001f6c r6:00000000 r5:00400040 r4:00000000 Nov 06 16:25:11 nas kernel: [<c01dd32c>] (__alloc_pages) from [<c0189834>] (filemap_read+0x218/0x9c8) Nov 06 16:25:11 nas kernel: r10:d46cff08 r9:d46cfef0 r8:00001f6c r7:00001f6c r6:00001000 r5:c3e9a1c8 Nov 06 16:25:11 nas kernel: r4:00001f6d Nov 06 16:25:11 nas kernel: [<c018961c>] (filemap_read) from [<c018a104>] (generic_file_read_iter+0x120/0x198) Nov 06 16:25:11 nas kernel: r10:00000000 r9:d46cff88 r8:c0c2d028 r7:d46cfef0 r6:00001000 r5:00000000 Nov 06 16:25:11 nas kernel: r4:d46cff08 Nov 06 16:25:11 nas kernel: [<c0189fe4>] (generic_file_read_iter) from [<bf7f492c>] (ntfs_file_read_iter+0x58/0xd4 [ntfs3> Nov 06 16:25:11 nas kernel: r10:00000000 r9:d46cff88 r8:c0c2d028 r7:00000000 r6:01f6c000 r5:00001000 Nov 06 16:25:11 nas kernel: r4:c6399f00 Nov 06 16:25:11 nas kernel: [<bf7f48d4>] (ntfs_file_read_iter [ntfs3]) from [<c020ca38>] (vfs_read+0x1fc/0x33c) Nov 06 16:25:11 nas kernel: [<c020c83c>] (vfs_read) from [<c020d228>] (ksys_pread64+0x70/0x9c) Nov 06 16:25:11 nas kernel: r10:00000000 r9:d46ce000 r8:c00083e4 r7:00001000 r6:01637098 r5:c6399f00 Nov 06 16:25:11 nas kernel: r4:c6399f01 Nov 06 16:25:11 nas kernel: [<c020d1b8>] (ksys_pread64) from [<c020d278>] (sys_pread64+0x24/0x2c) Nov 06 16:25:11 nas kernel: r7:000000b4 r6:b09ff600 r5:00000000 r4:01f6c000 Nov 06 16:25:11 nas kernel: [<c020d254>] (sys_pread64) from [<c0008260>] (ret_fast_syscall+0x0/0x1c) Nov 06 16:25:11 nas kernel: Exception stack(0xd46cffa8 to 0xd46cfff0) Nov 06 16:25:11 nas kernel: ffa0: 01f6c000 00000000 00000052 01637098 00001000 00000000 Nov 06 16:25:11 nas kernel: ffc0: 01f6c000 00000000 b09ff600 000000b4 00001000 01637098 00000000 0150ab58 Nov 06 16:25:11 nas kernel: ffe0: 00000000 b09fea70 00000000 b6722bf8 Nov 06 16:25:11 nas kernel: r5:00000000 r4:01f6c000 Nov 06 16:25:11 nas kernel: task:systemd-user-ru state:D stack: 0 pid: 9121 ppid: 1 flags:0x00000000 Nov 06 16:25:11 nas kernel: Backtrace: Nov 06 16:25:11 nas kernel: [<c08d1f60>] (__schedule) from [<c08d2944>] (schedule+0x78/0x138) Nov 06 16:25:11 nas kernel: r10:00000002 r9:00000001 r8:00000000 r7:c0cb1238 r6:ffffe000 r5:c613e660 Nov 06 16:25:11 nas kernel: r4:ffffe000 Nov 06 16:25:11 nas kernel: [<c08d28cc>] (schedule) from [<c0068470>] (rwsem_down_write_slowpath+0x2c8/0x3bc) Nov 06 16:25:11 nas kernel: r5:c0c27db4 r4:c0cb1230 Nov 06 16:25:11 nas kernel: [<c00681a8>] (rwsem_down_write_slowpath) from [<c08d57f0>] (down_write+0x50/0x6c) Nov 06 16:25:11 nas kernel: r10:c19bea80 r9:c020f958 r8:c0c35a08 r7:c6171800 r6:c0cb1230 r5:c0cb1220 Nov 06 16:25:11 nas kernel: r4:c0cb1230 Nov 06 16:25:11 nas kernel: [<c08d57a0>] (down_write) from [<c019f694>] (register_shrinker_prepared+0x28/0x60) Nov 06 16:25:11 nas kernel: r5:c0cb1220 r4:c6171a60 Nov 06 16:25:11 nas kernel: [<c019f66c>] (register_shrinker_prepared) from [<c020fe3c>] (sget_fc+0x16c/0x1b4) Nov 06 16:25:11 nas kernel: r7:c6171800 r6:00000000 r5:c627e1e0 r4:00000000 Nov 06 16:25:11 nas kernel: [<c020fcd0>] (sget_fc) from [<c0210d98>] (vfs_get_super+0x3c/0xf8) Nov 06 16:25:11 nas kernel: r9:c19be4e0 r8:c01a4438 r7:c627e1e0 r6:c2874000 r5:00000003 r4:c627e1e0 Nov 06 16:25:11 nas kernel: [<c0210d5c>] (vfs_get_super) from [<c0210e74>] (get_tree_nodev+0x20/0x24) Nov 06 16:25:11 nas kernel: r9:c19be4e0 r8:c0c27f34 r7:c0c2d028 r6:c2874000 r5:00000023 r4:c627e1e0 Nov 06 16:25:11 nas kernel: [<c0210e54>] (get_tree_nodev) from [<c01a3678>] (shmem_get_tree+0x1c/0x24) Nov 06 16:25:11 nas kernel: [<c01a365c>] (shmem_get_tree) from [<c020ef98>] (vfs_get_tree+0x34/0x110) Nov 06 16:25:11 nas kernel: [<c020ef64>] (vfs_get_tree) from [<c0235520>] (path_mount+0x3cc/0x984) Nov 06 16:25:11 nas kernel: r6:c2874000 r5:00000023 r4:c627e1e0 Nov 06 16:25:11 nas kernel: [<c0235154>] (path_mount) from [<c0235b44>] (do_mount+0x6c/0x9c) Nov 06 16:25:11 nas kernel: r10:00000000 r9:c2874000 r8:00000006 r7:c19bea80 r6:c19be4e0 r5:00000000 Nov 06 16:25:11 nas kernel: r4:c0c2d028 Nov 06 16:25:11 nas kernel: [<c0235ad8>] (do_mount) from [<c0235fdc>] (sys_mount+0x100/0x1a8) Nov 06 16:25:11 nas kernel: r9:c0c26000 r8:00000006 r7:bebe9a90 r6:c2874000 r5:c19be4e0 r4:c19bea80 Nov 06 16:25:11 nas kernel: [<c0235edc>] (sys_mount) from [<c0008260>] (ret_fast_syscall+0x0/0x1c) Nov 06 16:25:11 nas kernel: Exception stack(0xc0c27fa8 to 0xc0c27ff0) Nov 06 16:25:11 nas kernel: 7fa0: 016b1848 004d2218 004d2218 bebe9a90 004d2218 00000006 Nov 06 16:25:11 nas kernel: 7fc0: 016b1848 004d2218 004d2218 00000015 016b1848 016b1398 004d2218 00000000 Nov 06 16:25:11 nas kernel: 7fe0: b6f5006c bebe9a80 b6d9efb4 b6c6a9b0 Nov 06 16:25:11 nas kernel: r10:00000000 r9:c0c26000 r8:c00083e4 r7:00000015 r6:004d2218 r5:004d2218 Nov 06 16:25:11 nas kernel: r4:016b1848 Looks like a deadlock, isn't it? Kernel version - 5.15.74. Andriy
