Bug#966703: marked as done (linux-image-4.19.0-10-amd64: kworker process with permanent high CPU load)

2020-09-04 Thread Debian Bug Tracking System 
Your message dated Fri, 4 Sep 2020 19:10:42 +0200
with message-id <20200904171042.GA384867@eldamar.local>
and subject line Re: Bug#966703: linux-image-4.19.0-10-amd64: kworker process 
with permanent high CPU load
has caused the Debian Bug report #966703,
regarding linux-image-4.19.0-10-amd64: kworker process with permanent high CPU 
load
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact ow...@bugs.debian.org
immediately.)


-- 
966703: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=966703
Debian Bug Tracking System
Contact ow...@bugs.debian.org with problems
--- Begin Message ---

Package: src:linux
Version: 4.19.132-1
Severity: normal

Dear Maintainer,

after booting the kernel 4.19.0-10-amd64, there is a kworker process 
running with a permanent high CPU load of almost 90% as reported by the 
"top" command:


$ top
top - 09:48:19 up 0 min,  4 users,  load average: 1.91, 0.58, 0.20
Tasks: 218 total,   2 running, 216 sleeping,   0 stopped,   0 zombie
%Cpu(s):  0.8 us, 12.4 sy,  0.0 ni, 84.5 id,  0.0 wa,  0.0 hi,  2.3 si, 
 0.0 st

MiB Mem :  15889.4 total,  14173.1 free,    889.3 used,    827.0 buff/cache
MiB Swap:      0.0 total,      0.0 free,      0.0 used.  14677.7 avail Mem

  PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM TIME+ COMMAND
   64 root      20   0       0      0      0 R  86.7   0.0 0:47.41 
kworker/0:2+pm
    9 root      20   0       0      0      0 S  20.0   0.0 0:08.84 
ksoftirqd/0
  364 root     -51   0       0      0      0 S   6.7   0.0 0:00.50 
irq/126-nvidia
 1177 dirk      20   0 2921696 122848  94268 S   6.7   0.8 0:02.23 
kwin_x11

    1 root      20   0  169652  10280   7740 S   0.0   0.1 0:01.56 systemd
    2 root      20   0       0      0      0 S   0.0   0.0 0:00.00 
kthreadd

...

The expected result after booting the kernel 4.19.0-10-amd64 is a 
kworker process with a CPU load close to 0%.


As a control, booting the previous kernel 4.19.0-9-amd64 does not show a 
high CPU load for the kworker process. Instead, the kworker CPU load 
reported by the "top" command is 0.0%.


Therefore, I suspect a bug in the kernel 4.19.0-10-amd64.

Neither "dmesg" nor "journalctl -b" show any messages containing "kworker".

I am using Debian/GNU Linux 10.5 with kernel 4.19.0-10-amd64 and 
libc6:amd64 2.28-10.


If you need more information, I would be happy to provide it.

Cheers,

Dirk.

-- Package-specific info:
** Version:
Linux version 4.19.0-10-amd64 (debian-kernel@lists.debian.org 
) (gcc version 8.3.0 (Debian 
8.3.0-6)) #1 SMP Debian 4.19.132-1 (2020-07-24)


** Command line:
BOOT_IMAGE=/boot/vmlinuz-4.19.0-10-amd64 
root=UUID=7eb1c27f-5474-41cb-a4fc-de2944149287 ro quiet


** Tainted: PWOE (12801)
 * Proprietary module has been loaded.
 * Taint on warning.
 * Out-of-tree module has been loaded.
 * Unsigned module has been loaded.

** Kernel log:
Unable to read kernel log; any relevant messages should be attached

** Model information
sys_vendor: Dell Inc.
product_name: Precision 5510
product_version:
chassis_vendor: Dell Inc.
chassis_version:
bios_vendor: Dell Inc.
bios_version: 1.13.1
board_vendor: Dell Inc.
board_name: 0N8J4R
board_version: A00

** Loaded modules:
rfcomm
ctr
ccm
cmac
bnep
snd_hda_codec_hdmi
arc4
intel_rapl
dell_rbtn
iwlmvm
nls_ascii
nls_cp437
vfat
fat
snd_hda_codec_realtek
x86_pkg_temp_thermal
fuse
intel_powerclamp
mac80211
snd_hda_codec_generic
coretemp
mei_wdt
btusb
btrtl
btbcm
kvm_intel
btintel
dell_laptop
dell_wmi
bluetooth
kvm
iwlwifi
dell_smbios
snd_hda_intel
irqbypass
dcdbas
crct10dif_pclmul
crc32_pclmul
snd_hda_codec
sg
dell_smm_hwmon
hid_multitouch
joydev
wmi_bmof
dell_wmi_descriptor
ghash_clmulni_intel
drbg
snd_hda_core
serio_raw
cfg80211
ansi_cprng
intel_cstate
snd_hwdep
efi_pstore
snd_pcm
snd_timer
ecdh_generic
intel_uncore
snd
rtsx_pci_ms
mei_me
nvidia_drm(POE)
iTCO_wdt
memstick
intel_rapl_perf
rfkill
efivars
pcspkr
soundcore
idma64
pcc_cpufreq
iTCO_vendor_support
mei
intel_pch_thermal
nvidia_modeset(POE)
processor_thermal_device
tpm_tis
intel_soc_dts_iosf
tpm_tis_core
tpm
battery
rng_core
int3403_thermal
intel_hid
dell_smo8800
evdev
int3400_thermal
int3402_thermal
acpi_thermal_rel
sparse_keymap
int340x_thermal_zone
acpi_pad
ac
nvidia(POE)
ipmi_devintf
ipmi_msghandler
parport_pc
ppdev
lp
parport
efivarfs
ip_tables
x_tables
autofs4
ext4
crc16
mbcache
jbd2
crc32c_generic
fscrypto
ecb
usbhid
hid_generic
sd_mod
i915
crc32c_intel
i2c_designware_platform
i2c_designware_core
rtsx_pci_sdmmc
xhci_pci
i2c_algo_bit
mmc_core
xhci_hcd
drm_kms_helper
ahci
libahci
libata
aesni_intel
drm
mxm_wmi
aes_x86_64
psmouse
usbcore
i2c_i801
crypto_simd
scsi_mod
cryptd
glue_helper
i2c_hid

Bug#966703: linux-image-4.19.0-10-amd64: kworker process with permanent high CPU load

2020-09-04 Thread Salvatore Bonaccorso 
Hi Dirk,

On Fri, Sep 04, 2020 at 05:51:58PM +0200, Dirk Kostrewa wrote:
> Hi Salvatore,
> 
> meanwhile, Dell has replaced the mainboard of my laptop, and after that,
> both the USB over-current kernel messages and the kworker processes with
> high CPU load are gone.
> 
> Many thanks for caring about my bug report!

Thanks for reporting back! So I'm closing as well the bugreport as
thre is nothing to be done on Linux side for it.

Glad if it was of help.

Regards,
Salvatore

Bug#966703: linux-image-4.19.0-10-amd64: kworker process with permanent high CPU load

2020-09-04 Thread Dirk Kostrewa 

Hi Salvatore,

meanwhile, Dell has replaced the mainboard of my laptop, and after that, 
both the USB over-current kernel messages and the kworker processes with 
high CPU load are gone.


Many thanks for caring about my bug report!

Best regards,

Dirk.

Am 29.08.20 um 11:26 schrieb Salvatore Bonaccorso:

Hi Dirk,

Thanks for testing that.

On Sat, Aug 29, 2020 at 11:04:43AM +0200, Dirk Kostrewa wrote:

Hi Salvatore,

I have enabled the verbose debugging mode on the command line and have
appended the first 5000 lines of the dmesg output to this e-mail, running
the current kernel from the Buster backports with the two kworker processes
with high CPU load present.

After that, I have applied your patch to this kernel and rebooted with the
patched kernel:

5.7.0-0.bpo.2-amd64 #1 SMP Debian 5.7.10-1~bpo10+1a~test (2020-08-28) x86_64
GNU/Linux

With your patch applied, the two kworker processes with high CPU load
completely disappeared!

Unfortunately I suspect this indicates either a HW fault or a HW
design error as stated in the found kernel-thread which was just
uncovered by the mentioned kernel fix (which we temporarily reverted
with the patch). I can try to ask Alan Stern.

There might be a workaround workarble for you, the issue should
disapear if you prevent the system to automatically try to suspend
usb2 root hub (but you have the same on usb1 root hub).

# echo on >/sys/bus/usb/devices/usb2/power/control

will do that for the usb2 root hub.

Regards,
Salvatore

Bug#952710: marked as done (firmware-amd-graphics: AMD Navi GPU doesn't work)

2020-09-04 Thread Debian Bug Tracking System 
Your message dated Fri, 4 Sep 2020 14:35:00 +0200
with message-id <20200904123500.ga913...@photino.stro.at>
and subject line Re:  firmware-amd-graphics: AMD Navi GPU doesn't work
has caused the Debian Bug report #952710,
regarding firmware-amd-graphics: AMD Navi GPU doesn't work
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact ow...@bugs.debian.org
immediately.)


-- 
952710: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=952710
Debian Bug Tracking System
Contact ow...@bugs.debian.org with problems
--- Begin Message ---
Package: firmware-amd-graphics
Version: 20190717-2
Severity: important

Dear Maintainer,

please, update firmware packages to the latest version. It contains firmware
for AMD Navi GPUs, which does not works with current outdated version of
firmware packages.



-- System Information:
Debian Release: bullseye/sid
  APT prefers testing
  APT policy: (500, 'testing'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 5.4.0-4-amd64 (SMP w/12 CPU cores)
Locale: LANG=ru_RU.UTF-8, LC_CTYPE=ru_RU.UTF-8 (charmap=UTF-8), 
LANGUAGE=ru_RU:ru (charmap=UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

firmware-amd-graphics depends on no packages.

firmware-amd-graphics recommends no packages.

Versions of packages firmware-amd-graphics suggests:
ii  initramfs-tools  0.136

-- no debconf information
--- End Message ---
--- Begin Message ---
Version: 20200817-1


closing as fixed by newer version.--- End Message ---