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SubjectPossible regression in 5.16-stable
Hi,
I think I hit a regression in 5.16-stable.
It is difficult to reproduce, and I'm not sure if it's
still present in 5.17 and/or if it's caused by flaky hardware.

The machine is a Ryzen 5 1600 with AMD graphics (RX 560).

Kernels 5.16.10 do not have the following regression, 5.16.11-16
do. My machine would freeze completely about once a week, no oops in
the logs, sysrq won't work either. I managed to log only the
following (and only once) with netconsole, while running kernel 5.16.16.
I could not reproduce the problem since.

Michele Ballabio

----------
4,1490,11865947234,-;ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced reset
SUBSYSTEM=ieee80211
DEVICE=+ieee80211:phy0
4,1491,11872348272,-;ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced reset
SUBSYSTEM=ieee80211
DEVICE=+ieee80211:phy0
0,1493,12767657117,-;traps: PANIC: double fault, error_code: 0x0
4,1494,12767657121,-;double fault: 0000 [#1] PREEMPT SMP NOPTI
4,1495,12767657123,-;CPU: 4 PID: 16786 Comm: MediaPD~der #12 Not tainted 5.16.16 #1
4,1496,12767657126,-;Hardware name: System manufacturer System Product Name/PRIME B350-PLUS, BIOS 4011 04/19/2018
4,1497,12767657127,-;RIP: 0010:entry_SYSCALL_64+0x3/0x29
4,1498,12767657133,-;Code: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc 0f 01 f8 <65> 48 89 24 25 14 60 00 00 eb 12 0f 20 dc 0f 1f 44 00 00 48 81 e4
4,1499,12767657134,-;RSP: 0018:00007f2a8bcbd438 EFLAGS: 00010002
4,1500,12767657136,-;RAX: 00000000000000ca RBX: 000000000000005d RCX: 00007f2aa45e8aab
4,1501,12767657138,-;RDX: 0000000000000002 RSI: 0000000000000080 RDI: 00007f2aa4400018
4,1502,12767657139,-;RBP: 00007f2aa4400018 R08: 0000000000000000 R09: 00007f2a8ed00000
4,1503,12767657140,-;R10: 0000000000000000 R11: 0000000000000282 R12: 00000000000000a8
4,1504,12767657141,-;R13: 0000000000000003 R14: 0000000000000030 R15: 00007f2aa4400000
4,1505,12767657142,-;FS: 00007f2a8bcbe640(0000) GS:ffff8b110ed00000(0000) knlGS:0000000000000000
4,1506,12767657143,-;CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
4,1507,12767657144,-;CR2: 00007f2a8bcbd428 CR3: 00000002953f2000 CR4: 00000000003506e0
4,1508,12767657146,-;Call Trace:
4,1509,12767657146,-,ncfrag=0/986;Modules linked in: nfnetlink_queue nfnetlink_log nfnetlink bluetooth ecdh_generic ecc netconsole uas usb_storage snd_seq_dummy snd_hrtimer snd_seq snd_seq_device iptable_filter xt_tcpudp ip_tables
x_tables hwmon_vid 8021q garp mrp stp llc ipv6 fuse rt73usb rt2x00usb rt2x00lib mac80211 hid_logitech cfg80211 joydev hid_generic usbhid hid amdgpu intel_rapl_msr iommu_v2 intel_rapl_common gpu_sched eeepc_wmi asus_wmi drm_ttm_helper
ttm platform_profile battery drm_kms_helper sparse_keymap edac_mce_amd rfkill drm kvm_amd snd_hda_codec_realtek video snd_hda_codec_generic ledtrig_audio kvm snd_hda_codec_hdmi snd_hda_intel agpgart snd_intel_dspcfg snd_intel_sdw_acpi
wmi_bmof snd_hda_codec evdev i2c_algo_bit snd_hda_core fb_sys_fops syscopyarea sysfillrect sysimgblt snd_hwdep mfd_core snd_pcm r8169 irqbypass snd_timer realtek snd xhci_pci xhci_pci_renesas xhci_hcd mdio_devres crct10dif_pclmul
crc32_pclmul i2c_piix4 soundcore ccp libphy ghash_clmulni_intel i2c_co4,1509,12767657146,-,ncfrag=966/986;re rapl k10temp wmi
4,1510,12767657189,c; acpi_cpufreq gpio_amdpt button gpio_generic loop [last unloaded: netconsole]
4,1511,12767657207,-;------------[ cut here ]------------
4,1512,12767657207,-;WARNING: CPU: 4 PID: 16786 at kernel/softirq.c:362 __local_bh_enable_ip+0x43/0x70
4,1513,12767657212,-,ncfrag=0/986;Modules linked in: nfnetlink_queue nfnetlink_log nfnetlink bluetooth ecdh_generic ecc netconsole uas usb_storage snd_seq_dummy snd_hrtimer snd_seq snd_seq_device iptable_filter xt_tcpudp ip_tables
x_tables hwmon_vid 8021q garp mrp stp llc ipv6 fuse rt73usb rt2x00usb rt2x00lib mac80211 hid_logitech cfg80211 joydev hid_generic usbhid hid amdgpu intel_rapl_msr iommu_v2 intel_rapl_common gpu_sched eeepc_wmi asus_wmi drm_ttm_helper
ttm platform_profile battery drm_kms_helper sparse_keymap edac_mce_amd rfkill drm kvm_amd snd_hda_codec_realtek video snd_hda_codec_generic ledtrig_audio kvm snd_hda_codec_hdmi snd_hda_intel agpgart snd_intel_dspcfg snd_intel_sdw_acpi
wmi_bmof snd_hda_codec evdev i2c_algo_bit snd_hda_core fb_sys_fops syscopyarea sysfillrect sysimgblt snd_hwdep mfd_core snd_pcm r8169 irqbypass snd_timer realtek snd xhci_pci xhci_pci_renesas xhci_hcd mdio_devres crct10dif_pclmul
crc32_pclmul i2c_piix4 soundcore ccp libphy ghash_clmulni_intel i2c_co4,1513,12767657212,-,ncfrag=966/986;re rapl k10temp wmi
4,1514,12767657248,c; acpi_cpufreq gpio_amdpt button gpio_generic loop [last unloaded: netconsole]
4,1515,12767657252,-;CPU: 4 PID: 16786 Comm: MediaPD~der #12 Not tainted 5.16.16 #1
4,1516,12767657254,-;Hardware name: System manufacturer System Product Name/PRIME B350-PLUS, BIOS 4011 04/19/2018
4,1517,12767657255,-;RIP: 0010:__local_bh_enable_ip+0x43/0x70
4,1518,12767657257,-;Code: 01 35 61 1d f3 7d 65 8b 05 5a 1d f3 7d a9 00 ff ff 00 74 1a bf 01 00 00 00 e8 99 b5 02 00 65 8b 05 42 1d f3 7d 85 c0 74 25 c3 <0f> 0b eb cc 48 c7 c7 d9 53 42 83 e8 4d ec a6 00 65 66 8b 05 25 19
4,1519,12767657259,-;RSP: 0018:fffffe00000f69a0 EFLAGS: 00010006
4,1520,12767657260,-;RAX: 0000000080110203 RBX: ffff8b0e05bd2000 RCX: ffff8b0e05bd2000
4,1521,12767657261,-;RDX: ffff8b0e0ac28000 RSI: 0000000000000201 RDI: ffffffffc12f12c3
4,1522,12767657262,-;RBP: ffff8b0e0c977a30 R08: fffffe00000f69e8 R09: ffff8b0e0d085000
4,1523,12767657263,-;R10: ffff8b0e03234300 R11: 0000000000000fff R12: ffff8b0e0d0850d0
4,1524,12767657264,-;R13: fffffe00000f69e8 R14: ffff8b0e0ddfc980 R15: ffff8b0e0d085a58
4,1525,12767657265,-;FS: 00007f2a8bcbe640(0000) GS:ffff8b110ed00000(0000) knlGS:0000000000000000
4,1526,12767657266,-;CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
----------

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