Date: 22 Nov 1995 10:13:05 +0800 From: peter@haywire.dialix.com (Peter Wemm) To: freebsd-current@freebsd.org Subject: Re: Getblk hangs Message-ID: <48u0vh$dqf$1@haywire.DIALix.COM> References: <199511211419.GAA23343@freefall.freebsd.org>, <199511211903.UAA06787@keltia.freenix.fr>
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roberto@keltia.freenix.fr (Ollivier Robert) writes: >It seems that John Dyson said: >> There have been problems in the clustering code and a minor spl problem >> in the vfs_bio code. Also, any use of the ext2fs would almost certainly be >> fatal (eventually) until this last weekends modification. If you have >> had these hangs (neither DG nor I have had any problems, but he and >> I only use UFS, NFS (dg only) , and CD9660 occasionally), please try the code >> again. If you find any getblk hangs -- let me know, and I'll supply a patch >> that can derive more information from the situation. >The problem is, I don't know if it is still the getblk hang or not. I have >no output whatsoever. The machine is frozen by any disk-related >activity. Last time I got one (Nov 19th sources), the X screen saver was >still working (like someone else) and then when I tried to do something >involving the disk, freeze. I was able to switch from X11 to a virtual >console then total freeze. DDB doesn't seem to help (i.e. no debugger >call). >I want to help you but it is difficult :-( Suggestion: Grab the recently changed top port from -current and rebuild/install it. You can leave that running somewhere, and it'll now show the symbolic wait channels. If you get a hang and the machine locks up when disk activity is attempted top should either have frozen showing where the processes have hung, or should continue as long as it (or the X server) doesn't need to be paged in or out. >My Nov, 6th kernel is fine (see below). Sources from a few hours before, >probably between end of Nov, 5th and beginning of Nov 6th (Pacific time). Hmm. When was the first time after Nov 6 that you had trouble? Do you remember? It might help narrow it down... BTW; when was the last -current your tried? Cheers, -Peter >-- >Ollivier ROBERT -=- The daemon is FREE! -=- roberto@keltia.frmug.fr.net > FreeBSD keltia.freenix.fr 2.2-CURRENT #7: Mon Nov 6 21:08:06 MET 1995
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