Hi Anatoly! On 1/3/21 1:56 PM, Anatoly Pugachev wrote: > Running a simple stress-ng as a non-privileged (non root) user : > > stress-ng --opcode 1 --timeout 60 --metrics-brief > > will almost always bring the linux kernel to an unusable state, > starting from "Unable to handle kernel NULL pointer dereference", > "Bogus kernel PC [0000000000000000] in fault handler", "Kernel > unaligned access at TPC", "Unable to handle kernel paging request at > virtual address" and "rcu: INFO: rcu_sched detected stalls on > CPUs/tasks"...
This looks very similar to the kernel crashes on SPARC that we saw on the buildds for the GCC testsuite in the past (and other packages). I wonder whether we can use stress-ng to provoke the kernel crash on POWER when hosting big-endian VMs with high load on little-endian hosts [1]. Adrian > [1] https://bugzilla.kernel.org/show_bug.cgi?id=206669 -- .''`. John Paul Adrian Glaubitz : :' : Debian Developer - glaub...@debian.org `. `' Freie Universitaet Berlin - glaub...@physik.fu-berlin.de `- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913
