[Bug 109692] deadlock occurs during GPU reset

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=109692

--- Comment #17 from mikhail.v.gavrilov at gmail.com ---
(In reply to Michel Dänzer from comment #16)
> The "suspicious RCU usage" looks related to the igb ethernet driver, not
> amdgpu. Quite likely it's already fixed in later 5.0-rc releases.

Thank Michel, I knew, but I forgot about it.
This can be fixed by revert commit 59361316afcb08569af21e1af83e89c7051c055a,
but kernel in this branch even after it still much buggy than from Linus tree.
For example when I launch Assassin Creed Odyssey errors begin out related to
file system after then the computer hangs.

[44188.533349] ------------[ cut here ]------------
[44188.533840] kernel BUG at fs/inode.c:515!
[44188.533906] invalid opcode: 0000 [#1] SMP NOPTI
[44188.533909] CPU: 2 PID: 114 Comm: kswapd0 Tainted: G         C       
5.0.0-rc1-drm-next-kernel-3+ #3
[44188.533910] Hardware name: System manufacturer System Product Name/ROG STRIX
X470-I GAMING, BIOS 1103 11/16/2018
[44188.533915] RIP: 0010:clear_inode+0x7c/0x90
[44188.533917] Code: 2b a8 40 75 29 48 8b 83 e8 01 00 00 48 8d 93 e8 01 00 00
48 39 c2 75 18 48 c7 83 e0 00 00 00 60 00 00 00 5b 5d c3 0f 0b 0f 0b <0f> 0b 0f
0b 0f 0b 0f 0b 66 66 2e 0f 1f 84 00 00 00 00 00 90 0f 1f
[44188.533918] RSP: 0018:ffffb577c3effae8 EFLAGS: 00010216
[44188.533920] RAX: ff4d207cff51227d RBX: ffff8e4f4f12f208 RCX:
0000000000000007
[44188.533922] RDX: ffff8e4f4f12f5c8 RSI: ffff8e561c5ec020 RDI:
ffff8e561c5eb2c0
[44188.533923] RBP: ffff8e4f4f12f440 R08: 0000283071cf739b R09:
0000000000000000
[44188.533924] R10: 0000000000000000 R11: 0000000000000000 R12:
ffffffff9b042f00
[44188.533925] R13: ffff8e4f4f120780 R14: ffff8e4f4f120810 R15:
ffff8e4f4f12f208
[44188.533927] FS:  0000000000000000(0000) GS:ffff8e563ce00000(0000)
knlGS:0000000000000000
[44188.533928] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[44188.533929] CR2: 00007fcc2acc75d0 CR3: 00000005437e0000 CR4:
00000000003406e0
[44188.533930] Call Trace:
[44188.533935]  proc_evict_inode+0x1d/0x50
[44188.533937]  evict+0xd0/0x1a0
[44188.533940]  __dentry_kill+0xdf/0x190
[44188.533942]  shrink_dentry_list+0x11c/0x330
[44188.533944]  prune_dcache_sb+0x53/0x80
[44188.533947]  super_cache_scan+0xf7/0x1b0
[44188.533951]  do_shrink_slab+0x18a/0x3d0
[44188.533954]  shrink_slab+0x170/0x2c0
[44188.533957]  shrink_node+0x177/0x460
[44188.533960]  balance_pgdat+0x2d5/0x560
[44188.533965]  kswapd+0x25b/0x540
[44188.533968]  ? finish_wait+0x90/0x90
[44188.533972]  kthread+0x108/0x140
[44188.533973]  ? balance_pgdat+0x560/0x560
[44188.533975]  ? kthread_park+0x90/0x90
[44188.533978]  ret_from_fork+0x27/0x50
[44188.533981] Modules linked in: snd_seq_dummy uinput fuse rfcomm xt_CHECKSUM
ipt_MASQUERADE tun bridge stp llc devlink nf_conntrack_netbios_ns
nf_conntrack_broadcast xt_CT ip6t_rpfilter ip6t_REJECT nf_reject_ipv6
xt_conntrack ebtable_nat ip6table_nat nf_nat_ipv6 ip6table_mangle ip6table_raw
ip6table_security iptable_nat nf_nat_ipv4 nf_nat iptable_mangle iptable_raw
iptable_security nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c ip_set
nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables cmac bnep sunrpc
vfat fat arc4 r8822be(C) edac_mce_amd mac80211 kvm_amd kvm uvcvideo irqbypass
videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 snd_hda_codec_realtek
videobuf2_common snd_hda_codec_generic ledtrig_audio videodev
snd_hda_codec_hdmi snd_usb_audio joydev snd_hda_intel cfg80211 snd_hda_codec
media snd_usbmidi_lib btusb snd_hda_core snd_rawmidi btrtl snd_seq btbcm
btintel crct10dif_pclmul snd_hwdep bluetooth snd_seq_device crc32_pclmul
eeepc_wmi asus_wmi snd_pcm sparse_keymap video
[44188.534011]  wmi_bmof ghash_clmulni_intel snd_timer snd ccp ecdh_generic
sp5100_tco soundcore rfkill i2c_piix4 k10temp pcspkr pcc_cpufreq gpio_amdpt
gpio_generic acpi_cpufreq binfmt_misc hid_sony amdgpu ff_memless
hid_logitech_hidpp chash amd_iommu_v2 gpu_sched ttm drm_kms_helper drm
crc32c_intel igb nvme dca i2c_algo_bit hid_logitech_dj nvme_core wmi
pinctrl_amd
[44188.534028] ---[ end trace 85933fec4c138d6a ]---

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