@IoannisVranos, thanks for the link, but I'm already on the latest firmware
version for this drive (DXT09B0Q).
Maybe this drive simply does not support getting NCQ Log Emask...
[1.439428] ata1.00: failed to get NCQ Send/Recv Log Emask 0x1
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If the problem is solved, change the tag 'verification-needed-trusty' to
'verification-done-trusty'.
If verification is not done by 5 working days from today, this fix will be
dropped from the source code, and this bug will be closed.
I really do not understand those sentences... what
I've updated to the latest kernel via Vivid Proposed (linux-image-
extra-3.19.0-22-generic 3.19.0-22.22) which per commit log should fix
the error, but I still see it:
$ dmesg | grep ata
[0.00] BIOS-e820: [mem 0xc8f9e000-0xc8ff] ACPI data
[0.00] ACPI: SSDT
@Tim, this is what works for me on a Dell Latitude E6540:
1. Left hand: Press and hold “Fn” key (between Ctrl and the Windows key)
2. Right hand: Press and hold “Alt” + “SysRq” keys (Stamp)
3. Left hand: Release “Fn” key
4. Left hand: Press and release “r” key. (Screenshot dialogs may start
Public bug reported:
After updating to the latest kernel 5.0.0-15 I'm experiencing a severe
performance degradation on my machine with one of my applications (a gbc
emulator developed by me).
I saw about a 27% performance loss, going from 55fps to 40.
Booting an old 5.0.0-13 kernel or disabling
Just I quick follow up. The impact was so severe in my code because I
was using SDL_PollEvent() really often to read the keys status... which
was basically blocking my code.
That was one of the first things I wrote and forgot about it.
So that was really a context switching overhead problem.
Tyler, thanks a lot for taking the time to examine the issue and writing such a
complete response.
I agree with all your points.
I'll take this as an opportunity to try to learn more about profiling
and user/kernel space switching and optimization, because this made me
curious:
> Since the
I've made the same tests with mainline kernel '5.12.4-051204-generic
#202105140931 SMP Fri May 14 09:35:44 UTC 2021 x86_64 x86_64 x86_64
GNU/Linux' and the results are the same, i.e. sensors command stopping
when reaching amd section and this error message showing in dmesg:
[ 65.636330] [drm]
apport information
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** Tags added: apport-collected
** Description changed:
After updating via apt dist-upgrade from kernel 5.4.0-59 to kernel
5.8.0-34 the fan on my machine started switching on (for an instant) and
off every 10 seconds even when idle with CPU at 48/50°C.
Switching
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** Changed in: linux-signed-hwe-5.8 (Ubuntu)
Status: Invalid => Confirmed
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Hi Sergio. First of all, thank you (and anyone else involved) for your
time investigating in the issue.
> Could you please try to run the command several times, specifying the
different chip
I did not find how to specify a certain chip with the 'sensors' command after
reading the man page.
But
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