[Kernel-packages] [Bug 2015827] Re: NFS performance issue while clearing the file access cache upon login

2023-05-03 Thread Allan G Soeby
Hi @kleber-souza, @chengendu Thanks for your attention. Allow me give my perception of the impact of fixing "bug" LP: #2003053. The original patchset introduced *two* regressions. One, (NFS deathlock) that hit everybody - fixed by #2009325, but the remaining one, are now hitting those of use

[Kernel-packages] [Bug 2015827] Re: NFS performance issue while clearing the file access cache upon login

2023-04-12 Thread Allan G Soeby
Du ChengEn, I would second Jan's opinion. This whole chain of fixes that has gone in to fix LP: #2003053, should be rolled back. There where no heavy arguments to cherry-pick those changes in the first place. (It is not in upstream LTS either). Once it was discovered what kind of impact it had,

[Kernel-packages] [Bug 2009325] Re: NFS deathlock with last Kernel 5.4.0-144.161 and 5.15.0-67.74

2023-03-31 Thread Allan G Soeby
Hi Du ChengEn, Thanks for you feedback, and understanding of our issue. I will be watching the nfs mailing list as well, but kindly post references to the bug here, once the bug is opened. I support your idea, of a separate mount-option, if it is not possible to address both issues. Looking at

[Kernel-packages] [Bug 2009325] Re: NFS deathlock with last Kernel 5.4.0-144.161 and 5.15.0-67.74

2023-03-29 Thread Allan G Soeby
Hi Du ChengEn, Thanks for the clarification on test kernels. I am sad, I did not get to test your 2nd test kernel, as that would have revealed this issue immediately. While the changes to fix LP: #2003053, went in there to fix a "bug" - it also created this major regression. But the bug fix just

[Kernel-packages] [Bug 2009325] Re: NFS deathlock with last Kernel 5.4.0-144.161 and 5.15.0-67.74

2023-03-28 Thread Allan G Soeby
Hi Du ChengEn, Thanks for your efforts in making this change for this SRU cycle. However, I can confirm that we too are facing challenges with orders of magnitude (>10x) increases in ACCESS calls, with the newly released kernels. Still better/differently than 5.15.0-67, but not suitable for