Hi Xan, On Thu, Jan 23, 2025 at 02:31:34PM -0600, Xan Charbonnet wrote: > I rented a Linode and have been trying to load it down with sysbench > activity while doing a mariabackup and a mysqldump, also while spinning up > the CPU with zstd benchmarks. So far I've had no luck triggering the fault. > > I've also been doing some kernel compilation. I followed this guide: > https://www.dwarmstrong.org/kernel/ > (except that I used make -j24 to build in parallel and used make > localmodconfig to compile only the modules I need) > > I've built the following kernels: > 6.1.123 (equivalent to linux-image-6.1.0-29-amd64) > 6.1.122 > 6.1.121 > 6.1.120 > > So far they have all exhibited the behavior. Next up is 6.1.119 which is > equivalent to linux-image-6.1.0-28-amd64. My expectation is that the fault > will not appear for this kernel. > > It looks like the issue is here somewhere: > https://www.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.120 > > I have to work on some other things, and it'll take a while to prove the > negative (that is, to know that the failure isn't happening). I'll post > back with the 6.1.119 results when I have them. Additionally please try with 6.1.120 and revert this commit 3ab9326f93ec ("io_uring: wake up optimisations") (which landed in 6.1.120). If that solves the problem maybe we miss some prequisites in the 6.1.y series here? Regards, Salvatore
