ZFS related panic: Memory modified after free
José García Juanino
jjuanino at gmail.com
Sat Jul 25 11:28:42 UTC 2015
Hi FreeBSD-fs,
I have installed last devel snapshot from
FreeBSD-11.0-CURRENT-amd64-20150722-r285794, with the following
settings:
* ZFS guided
* ZFS encrypted option enable (GELI)
I have only added the following tunables to /boot/loader.conf:
i915kms_load="YES"
vfs.zfs.arc_max="1024M"
Yes, I have limited the ARC cache to 1G, as the system makes a lot of
swapping when you leave the default setting.
Under this scenario, the panic is easily reproducible when the system
is stressed by running a buildworld, and doing some more activity, as
"du -hs /usr/ports" and surfing the web.
Hardware is somewhat ancient and outdated (Dell Latitude D630, 4G RAM).
Full details here:
http://pastebin.com/raw.php?i=vHk6GLy6
If you needed, I can submit a bug report, but before to do that, I
need to make sure that the panic is not related to my specific
hardware or my ARC setting.
Best regards.
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