http://bugzilla.novell.com/show_bug.cgi?id=557565 http://bugzilla.novell.com/show_bug.cgi?id=557565#c Maciej Pilichowski changed: What |Removed |Added ---------------------------------------------------------------------------- Severity|Major |Normal -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=557565 http://bugzilla.novell.com/show_bug.cgi?id=557565#c1 Maciej Pilichowski changed: What |Removed |Added ---------------------------------------------------------------------------- Severity|Normal |Critical --- Comment #1 from Maciej Pilichowski 2009-11-28 07:35:34 UTC --- I tested 11.2 -- it is even worse than 11.1 and while testing I realize how bad this issue is. The problem is that opensuse uses automounting. I personally switch to manual mounting, so I didn't spot this before: 1) when you insert a disc, there is a lot of noise during automount 2) strange, but automounting after some struggle fails (disc is not mounted) 3) the user has to know how to mount it, so she/he mounts it manually 4) it works, but probing makes a lot of noise again, and in 11.2 it lasts... 3 minutes and 38 seconds (yes, probing itself) Again, for comparison, when you know in advance this is iso9660 mounting is silent and it is done just after you hint [enter]. I am upgrading the importance, because such long probing is not without effect on mechanism in drive. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=557565 http://bugzilla.novell.com/show_bug.cgi?id=557565#c3 Maciej Pilichowski changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |NEW Info Provider|bluedzins@wp.pl | --- Comment #3 from Maciej Pilichowski 2009-12-02 06:12:05 UTC --- Those are two different reports, about the same issue though -- the cracking noise of the drive. I doubt fixing probing for automount can fix anything related to copying data -- previously I reported noise when mounting UDF discs (this report is about ISO9660), it was fixed, and the other issues remain intact. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=557565 http://bugzilla.novell.com/show_bug.cgi?id=557565#c4 Jan Kara changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |NEEDINFO CC| |hvogel@novell.com Info Provider| |bluedzins@wp.pl --- Comment #4 from Jan Kara 2009-12-03 13:31:03 UTC --- Hmm, I doubt this is really a kernel problem. I'd rather think that it is a result of userspace library performing the media probing and trying to read various things from disk. If I'm right, the library is libblkid, a part of util_linux. Adding it's maintainer to CC. Maciej, to verify this, could you stop automounting and try whether running blkid(1) on your drive also makes those strange noises? Thanks. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=557565 http://bugzilla.novell.com/show_bug.cgi?id=557565#c6 Jan Kara changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |NEEDINFO Info Provider| |hvogel@novell.com --- Comment #6 from Jan Kara 2009-12-03 15:28:15 UTC --- Thanks for testing. So it obviously works a bit differently than I thought ;). Anyway, Henne, any thoughts what exactly is the difference and how to avoid that long mounting times with -t auto? -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=557565 http://bugzilla.novell.com/show_bug.cgi?id=557565#c8 --- Comment #8 from Kay Sievers 2009-12-18 07:01:45 UTC --- With race, you mean the direct repeated blkid calls without re-validation after media change? They should not happen with mount(8). blkid(8) and mount(8) use the same library/cache file. But mount(8) uses it only as a hint and always forces a verify of the result of the libblkid call, so there should be no race here, only in the "debugging tool" blkid(8), when called in cache lookup mode, which is the default behavior. Udev also always calls blkid(8) on every media change detection, but bypasses any logic which uses any cache file or scanning of other devices, and will therefore always cause a direct read of the device directly with the first open() of the device node after a media change. It's likely the probing for the filesystem type itself, which causes the noisy seeks on the drive. We also try to find the name(label) of the inserted media which involve seeks. I don't think there is an obvious fix for the media scanning/seeking, which seems to make an unusual sound on this specific drive. If it helps, sure, udev could be made to update the timestamp of the device node on media change, but that would not change the issue mentioned here, right? -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=557565 http://bugzilla.novell.com/show_bug.cgi?id=557565#c10 Jeff Mahoney changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |NEW Info Provider|kasievers@novell.com | --- Comment #10 from Jeff Mahoney 2009-12-23 15:35:17 UTC --- Yeah the idea was that if udev calls blkid on every media change event then perhaps mount could use the cache as well so long as it was properly invalidated in the case of quick media changes. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=557565 http://bugzilla.novell.com/show_bug.cgi?id=557565#c12 --- Comment #12 from Jeff Mahoney 2009-12-23 16:54:26 UTC --- Ok, that's the explanation for not using the cache that I was hunting for. Thanks. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.