On Mon, 1 Mar 2021 at 08:11, Hillf Danton <hdanton@xxxxxxxx> wrote:
>
> What we learn from your reports is
>
> 1/ in z3fold_free(), kref_put() creates the ground zero for the race
> cases reported,
>
> 2/ the stale_lock in combination with lock makes things more
> complicated than thought.
>
> Instead of dropping something in the zero spot, the fix below goes the
> road mentioned before in this mail thread - add another list_head in
> parallel to the buddy and s/buddy/stale_node/ under every case of
> stale_lock.
>
> --- x/mm/z3fold.c
> +++ y/mm/z3fold.c
> @@ -127,6 +127,7 @@ struct z3fold_header {
> unsigned short first_num:2;
> unsigned short mapped_count:2;
> unsigned short foreign_handles:2;
> + struct list_head stale_node;
> };
>
> /**
> @@ -429,6 +430,7 @@ static struct z3fold_header *init_z3fold
> zhdr->slots = slots;
> zhdr->pool = pool;
> INIT_LIST_HEAD(&zhdr->buddy);
> + INIT_LIST_HEAD(&zhdr->stale_node);
> INIT_WORK(&zhdr->work, compact_page_work);
> return zhdr;
> }
> @@ -556,7 +558,7 @@ static void __release_z3fold_page(struct
> z3fold_page_unlock(zhdr);
>
> spin_lock(&pool->stale_lock);
> - list_add(&zhdr->buddy, &pool->stale);
> + list_add(&zhdr->stale_node, &pool->stale);
> queue_work(pool->release_wq, &pool->work);
> spin_unlock(&pool->stale_lock);
> }
> @@ -598,10 +600,10 @@ static void free_pages_work(struct work_
> spin_lock(&pool->stale_lock);
> while (!list_empty(&pool->stale)) {
> struct z3fold_header *zhdr = list_first_entry(&pool->stale,
> - struct z3fold_header, buddy);
> + struct z3fold_header, stale_node);
> struct page *page = virt_to_page(zhdr);
>
> - list_del(&zhdr->buddy);
> + list_del(&zhdr->stale_node);
> if (WARN_ON(!test_bit(PAGE_STALE, &page->private)))
> continue;
> spin_unlock(&pool->stale_lock);
> @@ -1140,14 +1142,14 @@ retry:
> if (can_sleep) {
> spin_lock(&pool->stale_lock);
> zhdr = list_first_entry_or_null(&pool->stale,
> - struct z3fold_header, buddy);
> + struct z3fold_header, stale_node);
> /*
> * Before allocating a page, let's see if we can take one from
> * the stale pages list. cancel_work_sync() can sleep so we
> * limit this case to the contexts where we can sleep
> */
> if (zhdr) {
> - list_del(&zhdr->buddy);
> + list_del(&zhdr->stale_node);
> spin_unlock(&pool->stale_lock);
> cancel_work_sync(&zhdr->work);
> page = virt_to_page(zhdr);
> --
The computer with patch above worked for a record time (3 days)
without freezing.
https://postimg.cc/VShF5cJN
But after 3 days hangs with follow trace:
[263314.718807] general protection fault, probably for non-canonical
address 0x72c1224000000000: 0000 [#1] SMP NOPTI
[263314.718828] CPU: 3 PID: 476750 Comm: Chrome_IOThread Tainted: G
W --------- --- 5.12.0-0.rc1.162.fc35.x86_64+debug #1
[263314.718831] Hardware name: System manufacturer System Product
Name/ROG STRIX X570-I GAMING, BIOS 3402 01/13/2021
[263314.718835] RIP: 0010:__list_add_valid+0x3/0x40
[263314.718841] Code: e9 5d ff ff ff b8 f4 ff ff ff e9 53 ff ff ff 48
c7 00 00 00 00 00 c7 40 08 00 00 00 00 e9 6b ff ff ff cc cc cc cc cc
49 89 d0 <48> 8b 52 08 48 39 f2 0f 85 03 cf 62 00 4c 8b 0a 4d 39 c1 0f
85 1f
[263314.718845] RSP: 0018:ffffae4345b5fac0 EFLAGS: 00010282
[263314.718849] RAX: 00000000000003c0 RBX: ffffed09c02ade80 RCX:
0000000000000000
[263314.718851] RDX: 72c1224000000000 RSI: ffffce433c462004 RDI:
ffff9d414ab7a000
[263314.718853] RBP: ffffce433c462004 R08: 72c1224000000000 R09:
0000000000000000
[263314.718856] R10: 0000000000000000 R11: 0000000000000000 R12:
ffff9d4253053008
[263314.718858] R13: ffff9d414ab7a010 R14: 72c1224000000000 R15:
ffff9d414ab7a000
[263314.718860] FS: 00007f8ef636f640(0000) GS:ffff9d4947000000(0000)
knlGS:0000000000000000
[263314.718863] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[263314.718865] CR2: 000055634cbef560 CR3: 00000002dbdbc000 CR4:
0000000000350ee0
[263314.718867] Call Trace:
[263314.718875] do_compact_page+0x28d/0xb60
[263314.718884] ? z3fold_zpool_free+0x3a8/0x590
[263314.718888] zswap_free_entry+0x43/0x70
[263314.718892] zswap_frontswap_invalidate_page+0x8c/0x90
[263314.718895] __frontswap_invalidate_page+0x5d/0x90
[263314.718898] swap_range_free+0xcd/0xf0
[263314.718901] swapcache_free_entries+0x128/0x1a0
[263314.718904] free_swap_slot+0xbb/0xd0
[263314.718907] __swap_entry_free+0x7a/0xa0
[263314.718910] free_swap_and_cache+0x35/0x80
[263314.718913] shmem_undo_range+0x188/0x7e0
[263314.718919] ? ldsem_down_read+0x1f/0x40
[263314.718925] shmem_evict_inode+0xe6/0x290
[263314.718928] ? lock_release+0x1ef/0x410
[263314.718932] ? var_wake_function+0x20/0x20
[263314.718936] evict+0xcf/0x1d0
[263314.718940] __dentry_kill+0xe8/0x190
[263314.718943] ? dput+0x20/0x480
[263314.718946] dput+0x2b8/0x480
[263314.718949] __fput+0x102/0x260
[263314.718952] task_work_run+0x5c/0xa0
[263314.718957] exit_to_user_mode_prepare+0x232/0x240
[263314.718960] syscall_exit_to_user_mode+0x27/0x70
[263314.718964] entry_SYSCALL_64_after_hwframe+0x44/0xae
[263314.718967] RIP: 0033:0x7f8f0b15d16b
[263314.718972] Code: 8b 15 09 7d 0c 00 f7 d8 64 89 02 48 c7 c0 ff ff
ff ff eb 89 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 0b 00 00
00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d d5 7c 0c 00 f7 d8 64 89
01 48
[263314.718974] RSP: 002b:00007f8ef636d308 EFLAGS: 00000246 ORIG_RAX:
000000000000000b
[263314.718977] RAX: 0000000000000000 RBX: 00003e1813862928 RCX:
00007f8f0b15d16b
[263314.718979] RDX: 0000000000000000 RSI: 0000000000a4e000 RDI:
00007f8e5b43e000
[263314.718981] RBP: 00007f8ef636d320 R08: 0000000000000000 R09:
0000000000000000
[263314.718983] R10: 0000000000000000 R11: 0000000000000246 R12:
00007f8e5b43e000
[263314.718985] R13: 00003e18138628e0 R14: 00007f8ef636d330 R15:
00007f8ef636d330
[263314.718989] Modules linked in: nft_fib_inet nft_fib_ipv4
nft_fib_ipv6 nft_fib tun snd_seq_dummy snd_hrtimer uinput nls_utf8
isofs rfcomm netconsole nft_objref nf_conntrack_netbios_ns
nf_conntrack_broadcast nft_reject_inet nf_reject_ipv4 nf_reject_ipv6
nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6
nf_defrag_ipv4 ip_set nf_tables nfnetlink cmac bnep zstd sunrpc vfat
fat hid_logitech_hidpp hid_logitech_dj snd_hda_codec_realtek
snd_hda_codec_generic mt76x2u mt76x2_common ledtrig_audio mt76x02_usb
mt76_usb snd_hda_codec_hdmi mt76x02_lib intel_rapl_msr
intel_rapl_common iwlmvm mt76 snd_hda_intel snd_intel_dspcfg
soundwire_intel soundwire_generic_allocation snd_soc_core edac_mce_amd
joydev mac80211 snd_compress snd_pcm_dmaengine snd_usb_audio
soundwire_cadence kvm_amd snd_hda_codec btusb btrtl btbcm btintel
snd_hda_core snd_usbmidi_lib uvcvideo ac97_bus snd_seq iwlwifi kvm
snd_rawmidi bluetooth snd_hwdep videobuf2_vmalloc videobuf2_memops
videobuf2_v4l2 videobuf2_common
[263314.719032] eeepc_wmi snd_seq_device asus_wmi snd_pcm videodev
sparse_keymap xpad ecdh_generic mc libarc4 irqbypass wmi_bmof
ff_memless cfg80211 video ecc snd_timer rapl sp5100_tco snd i2c_piix4
k10temp soundcore rfkill acpi_cpufreq binfmt_misc uas usb_storage
amdgpu drm_ttm_helper ttm iommu_v2 crct10dif_pclmul gpu_sched
crc32_pclmul crc32c_intel drm_kms_helper cec drm ghash_clmulni_intel
ccp igb nvme dca nvme_core i2c_algo_bit wmi pinctrl_amd fuse [last
unloaded: ip_tables]
[263314.719079] ---[ end trace ba885cda1af90fb7 ]---
[263314.719081] RIP: 0010:__list_add_valid+0x3/0x40
[263314.719084] Code: e9 5d ff ff ff b8 f4 ff ff ff e9 53 ff ff ff 48
c7 00 00 00 00 00 c7 40 08 00 00 00 00 e9 6b ff ff ff cc cc cc cc cc
49 89 d0 <48> 8b 52 08 48 39 f2 0f 85 03 cf 62 00 4c 8b 0a 4d 39 c1 0f
85 1f
[263314.719086] RSP: 0018:ffffae4345b5fac0 EFLAGS: 00010282
[263314.719089] RAX: 00000000000003c0 RBX: ffffed09c02ade80 RCX:
0000000000000000
[263314.719091] RDX: 72c1224000000000 RSI: ffffce433c462004 RDI:
ffff9d414ab7a000
[263314.719093] RBP: ffffce433c462004 R08: 72c1224000000000 R09:
0000000000000000
[263314.719095] R10: 0000000000000000 R11: 0000000000000000 R12:
ffff9d4253053008
[263314.719097] R13: ffff9d414ab7a010 R14: 72c1224000000000 R15:
ffff9d414ab7a000
[263314.719099] FS: 00007f8ef636f640(0000) GS:ffff9d4947000000(0000)
knlGS:0000000000000000
[263314.719101] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[263314.719104] CR2: 000055634cbef560 CR3: 00000002dbdbc000 CR4:
0000000000350ee0
[263314.719106] note: Chrome_IOThread[476750] exited with preempt_count 5
[263341.868981] watchdog: BUG: soft lockup - CPU#0 stuck for 23s!
[ThreadPoolForeg:513140]
[263341.868991] Modules linked in: nft_fib_inet nft_fib_ipv4
nft_fib_ipv6 nft_fib tun snd_seq_dummy snd_hrtimer uinput nls_utf8
isofs rfcomm netconsole nft_objref nf_conntrack_netbios_ns
nf_conntrack_broadcast nft_reject_inet nf_reject_ipv4 nf_reject_ipv6
nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6
nf_defrag_ipv4 ip_set nf_tables nfnetlink cmac bnep zstd sunrpc vfat
fat hid_logitech_hidpp hid_logitech_dj snd_hda_codec_realtek
snd_hda_codec_generic mt76x2u mt76x2_common ledtrig_audio mt76x02_usb
mt76_usb snd_hda_codec_hdmi mt76x02_lib intel_rapl_msr
intel_rapl_common iwlmvm mt76 snd_hda_intel snd_intel_dspcfg
soundwire_intel soundwire_generic_allocation snd_soc_core edac_mce_amd
joydev mac80211 snd_compress snd_pcm_dmaengine snd_usb_audio
soundwire_cadence kvm_amd snd_hda_codec btusb btrtl btbcm btintel
snd_hda_core snd_usbmidi_lib uvcvideo ac97_bus snd_seq iwlwifi kvm
snd_rawmidi bluetooth snd_hwdep videobuf2_vmalloc videobuf2_memops
videobuf2_v4l2 videobuf2_common
[263341.869025] eeepc_wmi snd_seq_device asus_wmi snd_pcm videodev
sparse_keymap xpad ecdh_generic mc libarc4 irqbypass wmi_bmof
ff_memless cfg80211 video ecc snd_timer rapl sp5100_tco snd i2c_piix4
k10temp soundcore rfkill acpi_cpufreq binfmt_misc uas usb_storage
amdgpu drm_ttm_helper ttm iommu_v2 crct10dif_pclmul gpu_sched
crc32_pclmul crc32c_intel drm_kms_helper cec drm ghash_clmulni_intel
ccp igb nvme dca nvme_core i2c_algo_bit wmi pinctrl_amd fuse [last
unloaded: ip_tables]
[263341.869052] irq event stamp: 0
[263341.869054] hardirqs last enabled at (0): [<0000000000000000>] 0x0
[263341.869057] hardirqs last disabled at (0): [<ffffffffa80dd962>]
copy_process+0x902/0x1df0
[263341.869061] softirqs last enabled at (0): [<ffffffffa80dd962>]
copy_process+0x902/0x1df0
[263341.869064] softirqs last disabled at (0): [<0000000000000000>] 0x0
[263341.869067] CPU: 0 PID: 513140 Comm: ThreadPoolForeg Tainted: G
D W --------- --- 5.12.0-0.rc1.162.fc35.x86_64+debug #1
[263341.869070] Hardware name: System manufacturer System Product
Name/ROG STRIX X570-I GAMING, BIOS 3402 01/13/2021
[263341.869073] RIP: 0010:native_queued_spin_lock_slowpath+0x1ce/0x200
[263341.869076] Code: c1 ef 12 83 e0 03 83 ef 01 48 c1 e0 05 48 63 ff
48 05 00 f3 1e 00 48 03 04 fd 20 d9 6e a9 48 89 08 8b 41 08 85 c0 75
09 f3 90 <8b> 41 08 85 c0 74 f7 48 8b 39 48 85 ff 0f 84 56 ff ff ff 0f
0d 0f
[263341.869079] RSP: 0000:ffffae435505bbf0 EFLAGS: 00000246
[263341.869082] RAX: 0000000000000000 RBX: 0000000000e6c4f7 RCX:
ffff9d4946bef300
[263341.869084] RDX: ffff9d424197e4e8 RSI: 0000000000040000 RDI:
0000000000000014
[263341.869087] RBP: ffff9d424197e4e8 R08: 0000000000040000 R09:
0000000000000000
[263341.869089] R10: 0000000000000000 R11: 0000000000000000 R12:
ffff9d424197e500
[263341.869091] R13: ffff9d424197e4e8 R14: ffffffffa9e87020 R15:
ffff9d424197e4e0
[263341.869094] FS: 00007ff2de694640(0000) GS:ffff9d4946a00000(0000)
knlGS:0000000000000000
[263341.869096] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[263341.869099] CR2: 00000070bfa4d3c0 CR3: 00000002f2878000 CR4:
0000000000350ef0
[263341.869101] Call Trace:
[263341.869104] do_raw_spin_lock+0x94/0xa0
[263341.869107] _raw_spin_lock+0x63/0x80
[263341.869111] zswap_frontswap_load+0x30/0x2f0
[263341.869115] ? trace_hardirqs_on+0x1b/0xe0
[263341.869120] __frontswap_load+0xc3/0x160
[263341.869123] swap_readpage+0x25b/0x440
[263341.869127] swapin_readahead+0x450/0x4e0
[263341.869130] ? lock_release+0x1ef/0x410
[263341.869134] do_swap_page+0x4a4/0x900
[263341.869137] __handle_mm_fault+0xbd6/0x1610
[263341.869140] ? lock_acquire+0x177/0x3a0
[263341.869145] handle_mm_fault+0xa2/0x270
[263341.869148] do_user_addr_fault+0x1ea/0x6b0
[263341.869152] exc_page_fault+0x67/0x2a0
[263341.869155] ? asm_exc_page_fault+0x8/0x30
[263341.869158] asm_exc_page_fault+0x1e/0x30
[263341.869161] RIP: 0033:0x55e1b76f7713
[263341.869164] Code: 8b 9f c8 00 00 00 4d 8b b7 d0 00 00 00 4c 39 f3
74 5a 4c 8d 25 8e 18 3c 05 4c 8d 2d aa 59 e6 fb 0f 1f 80 00 00 00 00
48 8b 3b <48> 8b 07 48 89 c1 4c 29 e1 48 c1 c9 03 48 81 f9 9f 00 00 00
0f 87
[263341.869166] RSP: 002b:00007ff2de693430 EFLAGS: 00010287
[263341.869169] RAX: 0000000000000000 RBX: 00007ff2de693568 RCX:
00000070c00c7be0
[263341.869171] RDX: 0000000000000000 RSI: 0000000000000000 RDI:
00000070bfa4d3c0
[263341.869174] RBP: 00007ff2de693480 R08: 0000000000000000 R09:
00000000000000ca
[263341.869176] R10: 00007fff78981080 R11: 00007fff78981090 R12:
000055e1bcab8f90
[263341.869178] R13: 000055e1b355d0b3 R14: 00007ff2de693578 R15:
00007ff2de693500
[263341.870981] watchdog: BUG: soft lockup - CPU#1 stuck for 23s!
[steamwebhelper:3496089]
[263341.870987] Modules linked in: nft_fib_inet nft_fib_ipv4
nft_fib_ipv6 nft_fib tun snd_seq_dummy snd_hrtimer uinput nls_utf8
isofs rfcomm netconsole nft_objref nf_conntrack_netbios_ns
nf_conntrack_broadcast nft_reject_inet nf_reject_ipv4 nf_reject_ipv6
nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6
nf_defrag_ipv4 ip_set nf_tables nfnetlink cmac bnep zstd sunrpc vfat
fat hid_logitech_hidpp hid_logitech_dj snd_hda_codec_realtek
snd_hda_codec_generic mt76x2u mt76x2_common ledtrig_audio mt76x02_usb
mt76_usb snd_hda_codec_hdmi mt76x02_lib intel_rapl_msr
intel_rapl_common iwlmvm mt76 snd_hda_intel snd_intel_dspcfg
soundwire_intel soundwire_generic_allocation snd_soc_core edac_mce_amd
joydev mac80211 snd_compress snd_pcm_dmaengine snd_usb_audio
soundwire_cadence kvm_amd snd_hda_codec btusb btrtl btbcm btintel
snd_hda_core snd_usbmidi_lib uvcvideo ac97_bus snd_seq iwlwifi kvm
snd_rawmidi bluetooth snd_hwdep videobuf2_vmalloc videobuf2_memops
videobuf2_v4l2 videobuf2_common
[263341.871021] eeepc_wmi snd_seq_device asus_wmi snd_pcm videodev
sparse_keymap xpad ecdh_generic mc libarc4 irqbypass wmi_bmof
ff_memless cfg80211 video ecc snd_timer rapl sp5100_tco snd i2c_piix4
k10temp soundcore rfkill acpi_cpufreq binfmt_misc uas usb_storage
amdgpu drm_ttm_helper ttm iommu_v2 crct10dif_pclmul gpu_sched
crc32_pclmul crc32c_intel drm_kms_helper cec drm ghash_clmulni_intel
ccp igb nvme dca nvme_core i2c_algo_bit wmi pinctrl_amd fuse [last
unloaded: ip_tables]
[263341.871048] irq event stamp: 0
[263341.871050] hardirqs last enabled at (0): [<0000000000000000>] 0x0
[263341.871054] hardirqs last disabled at (0): [<ffffffffa80dd962>]
copy_process+0x902/0x1df0
[263341.871058] softirqs last enabled at (0): [<ffffffffa80dd962>]
copy_process+0x902/0x1df0
[263341.871061] softirqs last disabled at (0): [<0000000000000000>] 0x0
[263341.871064] CPU: 1 PID: 3496089 Comm: steamwebhelper Tainted: G
D W L --------- --- 5.12.0-0.rc1.162.fc35.x86_64+debug #1
[263341.871067] Hardware name: System manufacturer System Product
Name/ROG STRIX X570-I GAMING, BIOS 3402 01/13/2021
[263341.871069] RIP: 0010:native_queued_spin_lock_slowpath+0x137/0x200
[263341.871073] Code: e0 a9 1d 00 eb cb 41 83 c0 01 c1 e6 10 41 c1 e0
12 44 09 c6 89 f0 c1 e8 10 66 87 42 02 89 c7 c1 e7 10 75 73 31 ff eb
02 f3 90 <8b> 02 66 85 c0 75 f7 41 89 c0 66 45 31 c0 44 39 c6 0f 84 9b
00 00
[263341.871076] RSP: 0018:ffffae43549eb5f8 EFLAGS: 00000202
[263341.871078] RAX: 00000000000c0101 RBX: ffff9d414bc00000 RCX:
ffff9d4946def300
[263341.871081] RDX: ffff9d4253053008 RSI: 0000000000080000 RDI:
0000000000000000
[263341.871083] RBP: ffff9d4253053008 R08: 0000000000080000 R09:
0000000000000000
[263341.871085] R10: 0000000000000000 R11: 0000000000000001 R12:
ffff9d4253053020
[263341.871088] R13: ffff9d414bc00010 R14: 0000000000000000 R15:
ffffed09c02f0000
[263341.871090] FS: 00007f725d561d40(0000) GS:ffff9d4946c00000(0000)
knlGS:0000000000000000
[263341.871093] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[263341.871095] CR2: 0000366b51ea6fe8 CR3: 00000003865f2000 CR4:
0000000000350ee0
[263341.871098] Call Trace:
[263341.871101] do_raw_spin_lock+0x94/0xa0
[263341.871104] _raw_spin_lock+0x63/0x80
[263341.871107] z3fold_page_isolate+0xbd/0x1b0
[263341.871112] isolate_movable_page+0x94/0x180
[263341.871115] isolate_migratepages_block+0x5db/0x1120
[263341.871120] ? lock_release+0x1ef/0x410
[263341.871124] compact_zone+0x5a4/0xfd0
[263341.871129] compact_zone_order+0xaa/0xf0
[263341.871134] try_to_compact_pages+0x111/0x3b0
[263341.871138] __alloc_pages_direct_compact+0x79/0x210
[263341.871142] __alloc_pages_slowpath.constprop.0+0x1d0/0xf90
[263341.871147] ? __alloc_pages_nodemask+0x2e3/0x400
[263341.871151] ? lock_release+0x1ef/0x410
[263341.871154] __alloc_pages_nodemask+0x37d/0x400
[263341.871159] ttm_pool_alloc+0x2a3/0x630 [ttm]
[263341.871167] ttm_tt_populate+0x37/0xe0 [ttm]
[263341.871172] ttm_bo_handle_move_mem+0x13a/0x170 [ttm]
[263341.871179] ttm_bo_validate+0x15f/0x1b0 [ttm]
[263341.871184] ? lock_release+0x1ef/0x410
[263341.871189] ttm_bo_init_reserved+0x2f7/0x3e0 [ttm]
[263341.871195] amdgpu_bo_do_create+0x1a8/0x630 [amdgpu]
[263341.871312] ? amdgpu_bo_subtract_pin_size+0x50/0x50 [amdgpu]
[263341.871422] amdgpu_bo_create+0x30/0x2e0 [amdgpu]
[263341.871531] ? lock_acquire+0x177/0x3a0
[263341.871535] ? trace_hardirqs_on+0x1b/0xe0
[263341.871539] ? _raw_spin_unlock_irqrestore+0x37/0x40
[263341.871543] ? lock_release+0x1ef/0x410
[263341.871547] amdgpu_gem_create_ioctl+0x10e/0x370 [amdgpu]
[263341.871664] ? amdgpu_gem_force_release+0x130/0x130 [amdgpu]
[263341.871774] drm_ioctl_kernel+0x89/0xe0 [drm]
[263341.871797] drm_ioctl+0x20f/0x3c0 [drm]
[263341.871816] ? amdgpu_gem_force_release+0x130/0x130 [amdgpu]
[263341.871927] ? selinux_file_ioctl+0x147/0x200
[263341.871931] ? lock_acquired+0x200/0x390
[263341.871934] ? lock_release+0x1ef/0x410
[263341.871937] ? trace_hardirqs_on+0x1b/0xe0
[263341.871940] ? _raw_spin_unlock_irqrestore+0x37/0x40
[263341.871944] amdgpu_drm_ioctl+0x49/0x80 [amdgpu]
[263341.872053] __x64_sys_ioctl+0x82/0xb0
[263341.872058] do_syscall_64+0x33/0x40
[263341.872061] entry_SYSCALL_64_after_hwframe+0x44/0xae
[263341.872065] RIP: 0033:0x7f72610b22bb
[263341.872068] Code: ff ff ff 85 c0 79 9b 49 c7 c4 ff ff ff ff 5b 5d
4c 89 e0 41 5c c3 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa b8 10 00 00
00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 85 bb 0c 00 f7 d8 64 89
01 48
[263341.872071] RSP: 002b:00007ffcd94a01f8 EFLAGS: 00000246 ORIG_RAX:
0000000000000010
[263341.872074] RAX: ffffffffffffffda RBX: 00007ffcd94a0250 RCX:
00007f72610b22bb
[263341.872076] RDX: 00007ffcd94a0250 RSI: 00000000c0206440 RDI:
0000000000000016
[263341.872078] RBP: 00000000c0206440 R08: 0000000000000009 R09:
00000000000000b8
[263341.872081] R10: 00007ffcd9568080 R11: 0000000000000246 R12:
000008c86f1ae3c0
[263341.872083] R13: 0000000000000016 R14: 0000000000200000 R15:
00000000019c6000
[263341.872983] watchdog: BUG: soft lockup - CPU#2 stuck for 23s! [kswapd0:288]
[263341.872991] Modules linked in: nft_fib_inet nft_fib_ipv4
nft_fib_ipv6 nft_fib tun snd_seq_dummy snd_hrtimer uinput nls_utf8
isofs rfcomm netconsole nft_objref nf_conntrack_netbios_ns
nf_conntrack_broadcast nft_reject_inet nf_reject_ipv4 nf_reject_ipv6
nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6
nf_defrag_ipv4 ip_set nf_tables nfnetlink cmac bnep zstd sunrpc vfat
fat hid_logitech_hidpp hid_logitech_dj snd_hda_codec_realtek
snd_hda_codec_generic mt76x2u mt76x2_common ledtrig_audio mt76x02_usb
mt76_usb snd_hda_codec_hdmi mt76x02_lib intel_rapl_msr
intel_rapl_common iwlmvm mt76 snd_hda_intel snd_intel_dspcfg
soundwire_intel soundwire_generic_allocation snd_soc_core edac_mce_amd
joydev mac80211 snd_compress snd_pcm_dmaengine snd_usb_audio
soundwire_cadence kvm_amd snd_hda_codec btusb btrtl btbcm btintel
snd_hda_core snd_usbmidi_lib uvcvideo ac97_bus snd_seq iwlwifi kvm
snd_rawmidi bluetooth snd_hwdep videobuf2_vmalloc videobuf2_memops
videobuf2_v4l2 videobuf2_common
[263341.873025] eeepc_wmi snd_seq_device asus_wmi snd_pcm videodev
sparse_keymap xpad ecdh_generic mc libarc4 irqbypass wmi_bmof
ff_memless cfg80211 video ecc snd_timer rapl sp5100_tco snd i2c_piix4
k10temp soundcore rfkill acpi_cpufreq binfmt_misc uas usb_storage
amdgpu drm_ttm_helper ttm iommu_v2 crct10dif_pclmul gpu_sched
crc32_pclmul crc32c_intel drm_kms_helper cec drm ghash_clmulni_intel
ccp igb nvme dca nvme_core i2c_algo_bit wmi pinctrl_amd fuse [last
unloaded: ip_tables]
[263341.873052] irq event stamp: 36
[263341.873054] hardirqs last enabled at (35): [<ffffffffa8d61117>]
_raw_spin_unlock_irqrestore+0x37/0x40
[263341.873059] hardirqs last disabled at (36): [<ffffffffa8d5a8a9>]
__schedule+0x6e9/0xb20
[263341.873063] softirqs last enabled at (0): [<ffffffffa80dd962>]
copy_process+0x902/0x1df0
[263341.873066] softirqs last disabled at (0): [<0000000000000000>] 0x0
[263341.873069] CPU: 2 PID: 288 Comm: kswapd0 Tainted: G D W L
--------- --- 5.12.0-0.rc1.162.fc35.x86_64+debug #1
[263341.873073] Hardware name: System manufacturer System Product
Name/ROG STRIX X570-I GAMING, BIOS 3402 01/13/2021
[263341.873075] RIP: 0010:native_queued_spin_lock_slowpath+0x1ce/0x200
[263341.873079] Code: c1 ef 12 83 e0 03 83 ef 01 48 c1 e0 05 48 63 ff
48 05 00 f3 1e 00 48 03 04 fd 20 d9 6e a9 48 89 08 8b 41 08 85 c0 75
09 f3 90 <8b> 41 08 85 c0 74 f7 48 8b 39 48 85 ff 0f 84 56 ff ff ff 0f
0d 0f
[263341.873082] RSP: 0018:ffffae4340943898 EFLAGS: 00000246
[263341.873085] RAX: 0000000000000000 RBX: ffff9d4253053000 RCX:
ffff9d4946fef300
[263341.873087] RDX: ffff9d4253053008 RSI: 00000000000c0000 RDI:
0000000000000001
[263341.873090] RBP: ffff9d4253053008 R08: 00000000000c0000 R09:
0000000000000000
[263341.873092] R10: 0000000000000000 R11: 0000000000000000 R12:
ffff9d4253053020
[263341.873094] R13: 0000000000000003 R14: 0000000000000003 R15:
ffff9d41760b2000
[263341.873097] FS: 0000000000000000(0000) GS:ffff9d4946e00000(0000)
knlGS:0000000000000000
[263341.873099] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[263341.873102] CR2: 0000021509b13000 CR3: 00000004130c8000 CR4:
0000000000350ee0
[263341.873104] Call Trace:
[263341.873107] do_raw_spin_lock+0x94/0xa0
[263341.873110] _raw_spin_lock+0x63/0x80
[263341.873114] __z3fold_alloc+0x78/0x3d0
[263341.873118] z3fold_zpool_malloc+0x4a5/0x7c0
[263341.873121] ? _raw_spin_unlock+0x1f/0x30
[263341.873125] zswap_frontswap_store+0x43e/0x890
[263341.873130] __frontswap_store+0xc8/0x170
[263341.873134] swap_writepage+0x39/0x70
[263341.873137] pageout+0x125/0x540
[263341.873142] shrink_page_list+0x131b/0x1bb0
[263341.873147] shrink_inactive_list+0x12a/0x440
[263341.873152] shrink_lruvec+0x4aa/0x6d0
[263341.873158] shrink_node+0x2d1/0x700
[263341.873163] balance_pgdat+0x2f5/0x650
[263341.873169] kswapd+0x21d/0x4d0
[263341.873172] ? do_wait_intr_irq+0xd0/0xd0
[263341.873176] ? balance_pgdat+0x650/0x650
[263341.873179] kthread+0x13a/0x150
[263341.873183] ? __kthread_bind_mask+0x60/0x60
[263341.873187] ret_from_fork+0x22/0x30
It related?
Full kernel log is here: https://pastebin.com/x0KbXN9L
--
Best Regards,
Mike Gavrilov.
