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From: bugzilla-daemon@kernel.org
To: linux-ext4@vger.kernel.org
Subject: [Bug 217965] ext4(?) regression since 6.5.0 on sata hdd
Date: Fri, 17 Nov 2023 00:44:38 +0000
Message-ID: <bug-217965-13602-1kgEExRHtB@https.bugzilla.kernel.org/>
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https://bugzilla.kernel.org/show_bug.cgi?id=3D217965

--- Comment #33 from Ojaswin Mujoo (ojaswin.mujoo@ibm.com) ---
Hey Eyal,

Yes you are right, it is not able to find the vmlinux with debug symbols. Y=
ou
can either download the debuginfo package of the corresponding kernel which
should place the vmlinux in  the required place or even having the "vmlinux"
with debug symbols in the same directory as where you are running perf probe
shall do.

Also, once this error is resolved you *might* encounter something like " Er=
ror:
Failed to show lines." To fix it you can install the kernel source code pac=
kage
or just use the -s flag to point to the source code. (Example of how I use =
it):

sudo perf probe -s ~/workspace/9p -a "ext4_mb_find_good_group_avg_frag_lists
order"

Let me know if it still doesn't work.

Thanks!
Ojaswin

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