[Darshan-users] ioctl(LL_IOC_LOV_GETSTRIPE) crashes

[Ed Karrels]

Hello Darshan team,
I just wanted to add a data point to the ioctl(LL_IOC_LOV_GETSTRIPE) issue
(which I see was discussed on this mailing list last October ("Help needed,
Darshan keeps crashing in Lustre filesystem"), and in this issue:
https://xgitlab.cels.anl.gov/darshan/darshan/-/issues/270.

I was trying to use Darshan 3.2.1 on Frontera at TACC, and my test program
kept locking up. After a few failures the system admin let me know my
failures were crashing each node I tested on.

This is one of error messages they found:
[187544.836144] Lustre: test_darshan_lo: using old ioctl(
LL_IOC_LOV_GETSTRIPE) on [0x200022388:0x1776:0x0], use
llapi_layout_get_by_path()[187544.848624] usercopy: kernel memory exposure
attempt detected from ffff8d46b11910c0 (kmalloc-64) (48032 bytes)

I'll disable the Lustre module for now and keep an eye out for new releases.
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