Hello Ken,
do you have a command to reproduce this? I would like to use it to
verify the fix.
I tired this on a Cosmic KVM allocated with 2G ram, 512MB swap, with:
* "zswap.enabled=1 zswap.zpool=z3fold zswap.max_pool_percent=5
zswap.compressor=lz4" added to the grub
* z3pool, lz4, lz4_compress module added to initramfs
and stress it with the stress command with 115% of available memory.
stress --vm-bytes $(awk '/MemAvailable/{printf "%d\n", $2 * 1.15;}' <
/proc/meminfo)k --vm-keep -m 1
All I got is a soft CPU lockup. Or should I leave it there for a while?
Thanks
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https://bugs.launchpad.net/bugs/1814874
Title:
NULL pointer dereference when using z3fold and zswap
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