kernel-shark fails to display

kernel-shark fails to display

[Sudip Mukherjee]

Hi,

I am seeing a problem with the latest version v2.3.0
Steps to reproduce:
1. start kernel-shark
2. Go to Record in Tools menu
3. Select Events: All
4. Select "Display output"
5. Click on Apply
6. Click on Capture

It fails with:
kernelshark: ./src/libkshark-model.c:249: ksmodel_set_upper_edge:
Assertion `row != BSEARCH_ALL_GREATER' failed.
Aborted


-- 
Regards
Sudip

Re: kernel-shark fails to display

[Yordan Karadzhov]

Hi Sudip,

Thanks a lot for reporting the issue!
I will have a look.

Best
Yordan

On 1/20/24 22:50, Sudip Mukherjee wrote:
> Hi,
> 
> I am seeing a problem with the latest version v2.3.0
> Steps to reproduce:
> 1. start kernel-shark
> 2. Go to Record in Tools menu
> 3. Select Events: All
> 4. Select "Display output"
> 5. Click on Apply
> 6. Click on Capture
> 
> It fails with:
> kernelshark: ./src/libkshark-model.c:249: ksmodel_set_upper_edge:
> Assertion `row != BSEARCH_ALL_GREATER' failed.
> Aborted
> 
> 

Re: kernel-shark fails to display

[Yordan Karadzhov]

Hi Sudip,

First of all, I am sorry for the very log time it took me to react to 
the problem you found.

I tried reproducing it on few different machines, but I am not able to 
see it. It would be great if you can help me a bit more, so that I can 
figure out what went wrong in your case.

It seems that the recording itself was successful, but later KernelShark 
fails to open the recorded file. Note that the file (trace.dat) must 
remain in the directory where you started KernelShark even after the 
abortion. Please try to open again this file in KS and check if this 
gives you the same error. If this is the case, send me the trace.dat 
file, so that I can investigate further.

Thanks!
Yordan

On 1/20/24 22:50, Sudip Mukherjee wrote:
> Hi,
> 
> I am seeing a problem with the latest version v2.3.0
> Steps to reproduce:
> 1. start kernel-shark
> 2. Go to Record in Tools menu
> 3. Select Events: All
> 4. Select "Display output"
> 5. Click on Apply
> 6. Click on Capture
> 
> It fails with:
> kernelshark: ./src/libkshark-model.c:249: ksmodel_set_upper_edge:
> Assertion `row != BSEARCH_ALL_GREATER' failed.
> Aborted
> 
> 

Re: kernel-shark fails to display

[Sudip Mukherjee]

Hi Yordan,

On Wed, 28 Feb 2024 at 20:40, Yordan Karadzhov <y.karadz@gmail.com> wrote:
>
> Hi Sudip,
>
> First of all, I am sorry for the very log time it took me to react to
> the problem you found.

No problem. I was also busy and did not get the time to debug the issue further.

>
> I tried reproducing it on few different machines, but I am not able to
> see it. It would be great if you can help me a bit more, so that I can
> figure out what went wrong in your case.

I am wondering if I have messed up something while updating the package.

>
> It seems that the recording itself was successful, but later KernelShark
> fails to open the recorded file. Note that the file (trace.dat) must
> remain in the directory where you started KernelShark even after the
> abortion. Please try to open again this file in KS and check if this
> gives you the same error. If this is the case, send me the trace.dat
> file, so that I can investigate further.

The trace.dat is working, I have been able to open the same trace.dat
file with the previous version of kernelshark.
Next, I tried to open an old trace.dat (created with old kernelshark)
with the latest version  and that also failed.
I can send you the trace.dat and also a .deb package for Debian which
you can install and test, but it will take a few days. I can only do
it after the t64 transition is over.


-- 
Regards
Sudip

Re: kernel-shark fails to display

[Yordan Karadzhov]

Hi Sudip,

On 2/29/24 21:55, Sudip Mukherjee wrote:
> The trace.dat is working, I have been able to open the same trace.dat
> file with the previous version of kernelshark.
> Next, I tried to open an old trace.dat (created with old kernelshark)
> with the latest version  and that also failed.
> I can send you the trace.dat and also a .deb package for Debian which
> you can install and test, but it will take a few days. I can only do
> it after the t64 transition is over.

Please send the .dat file and the package. Indeed, so far I tried to 
reproduce the bug on different distros, but only after building 
kernelshark from source. Also please note that I merged some patches 
with fixes after the latest tag.

Thanks,
Y.