Messages in this thread |  | | | Date | Sun, 15 Nov 1998 02:17:16 +1100 | | From | Matthew Hawkins <> | | Subject | Re: Total freeze with 2.1.12[7,8] |
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Hi Pascal!
On Fri, 13 Nov 1998, Pascal A. Dupuis wrote:
> Hello, > I've got some mysterious crashes, without any message in the syslog. Total > freeze, no keyboard, no network whatsoever. Just the reset button, and > then 10 minutes delay before disks are checked.
I had a similar problem (except the software watchdog was obviously still functional as the system automatically rebooted about 30 seconds later)
> The kernel : stock 2.1.128
The same...
> compiled with pgcc, based upon egcs-1.0.3 and -O6: instant freeze > same compiler, -O6 and arch/kernel/time.c with -O2 : freeze after > mounting the swap file > compiled with gcc-2.8.1, -O2 : seems OK
I'm using egcs-2.91.58 (19981101) with only the architecture flags added (-mpentium -mcpu=pentium -march=pentium) - the regular 586 flags (-O2 et al) are carried across still - I steer clear of crazy optimization levels :)
> The circumstances : > - starting netscape (I get the main window, and bang!)
When it did it to me just then, I typed "C-x C-f" in the Netscape (Navigator 4.5) window instead of the Emacs window. Instant freeze. I could ping the system from another host, but could not telnet in.
About half an hour prior to this, I had noticed the system getting a tad sluggish, although there was nothing out of the ordinary happening.
I noticed a post earlier by H. J. Lu where he questioned scheduling - I had some similar symptoms happen earlier today also - a large disk write pretty much turned the box into a single-tasking system ;) All other disk i/o queued until the large one was over. Usually things tend to share around equally.
Just as a general observance, all post-2.1.125 kernels appear to be living up to the development kernel inference of instability. 117/9 and 125 were fine.
I'm also willing to bet that egcs is the problem - its pentium optimisations are probably generating some unwanted/unexpected opcodes. Wish I knew enough AT&T syntax to figure it out.
-- Matt
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