Hi Peter, On Wed, 24 May 2023 at 19:37, Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote: > > On Wed, May 24, 2023 at 02:32:20PM +0530, Naresh Kamboju wrote: > > While running LTP controllers following kernel crash noticed on qemu-x86_64 > > compat mode with stable-rc 6.3.4-rc2. > > Both your reports are stable-rc 6.3.4-rc2; can I assume that stable > 6.3.3 is good? It was not good. starting from 6.3.1-c1 these issues were there on both i386 and x86_64. I need to check back on other branches and compare it with Linux mainline and Linux next master branches. > > Either way, could you please: > > 1) try linus/master > 2) bisect stable-rc > > I don't immediately see a patch in that tree that would cause either of > these things. Thanks for asking these questions. I should have included this information in my earlier email. I have been noticing this from day one on stable-rc 6.3.1-rc1. As per your suggestions, I will try to reproduce on other trees and branches and get back to you.+ FYI, These are running in AWS cloud as qemu-i386 and qemu-x86_64. A few old links showing the history of the problem. https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.3.y/build/v6.3.3-364-ga37c304c022d/testrun/17170422/suite/log-parser-test/test/check-kernel-panic-7c768ef1d898edf92187a69f777efd2977be7fb965a68b333443bd4120e64c06/history/ i386: ==== Boot failed due to the following kernel crash. <6>[ 2.078988] sched_clock: Marking stable (2023078833, 55554488)->(2088116191, -9482870) <4>[ 2.081669] int3: 0000 [#1] PREEMPT SMP <4>[ 2.082070] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.3.3-rc1 #1 <4>[ 2.082174] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 <4>[ 2.082326] EIP: sched_clock_cpu+0xa/0x2b0 i386: while running LTP controllers tests ==== <4>[ 888.113619] int3: 0000 [#1] PREEMPT SMP <4>[ 888.113966] CPU: 0 PID: 8805 Comm: pids.sh Not tainted 6.3.1-rc1 #1 <4>[ 888.114134] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 <4>[ 888.114360] EIP: get_page_from_freelist+0xf1/0xc70 x86_64: while running LTP controllers tests ====== <4>[ 3182.753415] int3: 0000 [#1] PREEMPT SMP PTI <4>[ 3182.755092] CPU: 0 PID: 69163 Comm: cgroup_fj_stres Not tainted 6.3.1-rc1 #1 <4>[ 3182.755228] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 <4>[ 3182.755394] RIP: 0010:__alloc_pages+0xeb/0x340 x86_64: while running LTP tracing tests ====== <4>[ 52.392251] int3: 0000 [#1] PREEMPT SMP PTI <4>[ 52.392648] CPU: 0 PID: 331 Comm: journal-offline Not tainted 6.3.3-rc1 #1 <4>[ 52.392794] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 <4>[ 52.393070] RIP: 0010:syscall_trace_enter.constprop.0+0x1/0x1b0 - Naresh
