From mboxrd@z Thu Jan 1 00:00:00 1970 From: Krzysztof Lichota Date: Tue, 12 Jun 2007 10:15:02 +0000 Subject: blktrace crashing with 2.6.22-rc3 Message-Id: <466E7226.7060609@lichota.net> MIME-Version: 1 Content-Type: multipart/mixed; boundary="------------enigA05F480E9C8CB281E56A30A9" List-Id: To: linux-btrace@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigA05F480E9C8CB281E56A30A9 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Hello! I am trying to use blktrace on latest Ubuntu kernel for Gutsy (2.6.22-rc3, git tree is at git://kernel.ubuntu.com/ubuntu/ubuntu-gutsy.git and web frontend at http://kernel.ubuntu.com/git). I have compiled it with blktrace enabled and when I try to run blktrace -k to stop tracing, it doesn't do anything, but in dmesg I can see the messages: [ 239.499614] DebugFS rmdir on hda failed : directory not empty. [ 239.499637] DebugFS rmdir on block failed : directory not empty. If I try to kill it afterwards using ^C, it shows message "BLKTRACESTOP: invalid argument", crashes with segmentation fault (core file is empty) and I cannot start it again. This happens if I run blktrace using: blktrace -d /dev/hda -o somefile (on the same partition which is traced). If I use network mode, it works fine. blktrace tools are pulled today using git: $ cat .git/remotes/origin URL: git://git.kernel.org/pub/scm/linux/kernel/git/axboe/blktrace.git Pull: refs/heads/master:refs/heads/origin Should I investigate it further or is it a known issue? Regards Krzysztof Lichota --------------enigA05F480E9C8CB281E56A30A9 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2.2 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFGbnIsSHJB/1EhaUwRAtOCAJ0Y5YabOVJnTLZg76HN6N5IbPTJcgCg1u1F K9+QBuPxBp38YNSwqVsb/fw= =LGIc -----END PGP SIGNATURE----- --------------enigA05F480E9C8CB281E56A30A9--