On my machine, OpenAFS has suddenly gone from pretty reliable to very problematic. Several things have been happening, so I am not quite sure which are the most significant.
You may remember that our cell (rpi.edu) was having some problems with the fileservers hanging. The new version of OpenAFS has been installed on some of our servers, but I am not sure if it has been installed on all of them.
As it was getting installed on various file servers, I started noticing that *some* references into AFS space from my Mac would hang for 56 seconds. Once I got past one hang, any accesses would work fine for awhile. Then, sometime later on, I would get another 56-second hang. At about the same time, I decided to apply about a month's worth of recent updates from Apple, including the update to 10.3.6. This is on a dual 2-GHz G5 from Apple.
I am not certain which version of OpenAFS I had been running, but I believe it was 1.2.11. So, I figured I might as well upgrade my Mac to 1.2.13. Now, I seem to get panics when I save a file which I am editing in the XCode 1.5 application. I may be able to change and save any given file some small number of times, but after one- too-many saves, the machine will panic. I have only noticed this with XCode, but then that is the way I usually modify files.
Once the machine comes back from the panic, the original file will be gone, but there's a temp backup file still around. E.g., if I am editting 'printjob.c', then 'printjob.c' will be missing, but there is an extra 'printjob~.c' file sitting in the same directory. That file will not have the changes that I just saved, and I think it is also missing the *previous* set of changes that I had saved.
I suspect this is something XCode is doing oddly. Before all of these recent changes, I would sometimes get into a situation where XCode would claim it could not save a file. When it did that, the original file would be missing, and that blah~.c file would be there. However, I could always get out of that situation without triggering any panic, so it wasn't quite as annoying as this is.
In any case, here is some information from the panic log. What else should I do to help with this?
********* Thu Nov 18 17:05:36 2004
Unresolved kernel trap(cpu 0): 0x300 - Data access DAR=0x00000000DEADD1F5 PC=0x000000000022BC30
Latest crash info for cpu 0:
Exception state (sv=0x2DD43780)
PC=0x0022BC30; MSR=0x00009030; DAR=0xDEADD1F5; DSISR=0x40000000; LR=0x000C0FC0; R1=0x1746BCD0; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x000C1B04 0x000C9724 0x002463C4 0x00094200 0x00000000
backtrace terminated - frame not mapped or invalid: 0xBFFFB4E0
Proceeding back via exception chain:
Exception state (sv=0x2DD43780)
previously dumped as "Latest" state. skipping...
Exception state (sv=0x2E3E9C80)
PC=0x9002E08C; MSR=0x0200D030; DAR=0xBFFFAE80; DSISR=0x0A000000; LR=0x90323EC4; R1=0xBFFFB4E0; XCP=0x00000030 (0xC00 - System call)
Kernel version: Darwin Kernel Version 7.6.0: Sun Oct 10 12:05:27 PDT 2004; root:xnu/xnu-517.9.4.obj~1/RELEASE_PPC
panic(cpu 0): 0x300 - Data access
Latest stack backtrace for cpu 0:
Backtrace:
0x000836E4 0x00083BC8 0x0001EDA4 0x00090C60 0x0009406C
Proceeding back via exception chain:
Exception state (sv=0x2DD43780)
PC=0x0022BC30; MSR=0x00009030; DAR=0xDEADD1F5; DSISR=0x40000000; LR=0x000C0FC0; R1=0x1746BCD0; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x000C1B04 0x000C9724 0x002463C4 0x00094200 0x00000000
backtrace terminated - frame not mapped or invalid: 0xBFFFB4E0
Exception state (sv=0x2E3E9C80)
PC=0x9002E08C; MSR=0x0200D030; DAR=0xBFFFAE80; DSISR=0x0A000000; LR=0x90323EC4; R1=0xBFFFB4E0; XCP=0x00000030 (0xC00 - System call)
Kernel version: Darwin Kernel Version 7.6.0: Sun Oct 10 12:05:27 PDT 2004; root:xnu/xnu-517.9.4.obj~1/RELEASE_PPC
*********
Thu Nov 18 18:35:15 2004
Unresolved kernel trap(cpu 1): 0x300 - Data access DAR=0x00000000DEADD1F5 PC=0x000000000022BC30
Latest crash info for cpu 1:
Exception state (sv=0x2DCBC000)
PC=0x0022BC30; MSR=0x00009030; DAR=0xDEADD1F5; DSISR=0x40000000; LR=0x000C0FC0; R1=0x17783CD0; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x000C1B04 0x000C9724 0x002463C4 0x00094200 0x00000000
backtrace terminated - frame not mapped or invalid: 0xBFFFB4E0
Proceeding back via exception chain:
Exception state (sv=0x2DCBC000)
previously dumped as "Latest" state. skipping...
Exception state (sv=0x2D588500)
PC=0x9002E08C; MSR=0x0200F030; DAR=0x00B5F3D8; DSISR=0x40000000; LR=0x90323EC4; R1=0xBFFFB4E0; XCP=0x00000030 (0xC00 - System call)
Kernel version: Darwin Kernel Version 7.6.0: Sun Oct 10 12:05:27 PDT 2004; root:xnu/xnu-517.9.4.obj~1/RELEASE_PPC
panic(cpu 1): 0x300 - Data access
Latest stack backtrace for cpu 1:
Backtrace:
0x000836E4 0x00083BC8 0x0001EDA4 0x00090C60 0x0009406C
Proceeding back via exception chain:
Exception state (sv=0x2DCBC000)
PC=0x0022BC30; MSR=0x00009030; DAR=0xDEADD1F5; DSISR=0x40000000; LR=0x000C0FC0; R1=0x17783CD0; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x000C1B04 0x000C9724 0x002463C4 0x00094200 0x00000000
backtrace terminated - frame not mapped or invalid: 0xBFFFB4E0
Exception state (sv=0x2D588500)
PC=0x9002E08C; MSR=0x0200F030; DAR=0x00B5F3D8; DSISR=0x40000000; LR=0x90323EC4; R1=0xBFFFB4E0; XCP=0x00000030 (0xC00 - System call)
Kernel version: Darwin Kernel Version 7.6.0: Sun Oct 10 12:05:27 PDT 2004; root:xnu/xnu-517.9.4.obj~1/RELEASE_PPC
*********
-- Garance Alistair Drosehn = [EMAIL PROTECTED] Senior Systems Programmer or [EMAIL PROTECTED] Rensselaer Polytechnic Institute or [EMAIL PROTECTED] _______________________________________________ OpenAFS-info mailing list [EMAIL PROTECTED] https://lists.openafs.org/mailman/listinfo/openafs-info