All processes hung under 2.4.3
Earlier today, I tried to unlock xscreensaver on my desktop. After typing in the password, it said "Checking..." and then hung. In response, I hit Ctrl+Alt+Bksp, which killed X. However, gdm did not restart X. I tried logging in on the console, but none of them were responsive; characters would echo, but nothing else.
In hopes of finding the problem, I entered kdb, and did a bta. All processes were hung in exactly the same spot, schedule+0x268! This code is as follows:
0xc0110d50 <schedule+252>: jne 0xc0110d7e <schedule+298> 0xc0110d52 <schedule+254>: test %eax,%eax 0xc0110d54 <schedule+256>: jne 0xc0110d72 <schedule+286> 0xc0110d56 <schedule+258>: mov 0xffffffe4(%ecx),%edx 0xc0110d59 <schedule+261>: test %edx,%edx 0xc0110d5b <schedule+263>: je 0xc0110d7e <schedule+298> 0xc0110d5d <schedule+265>: mov 0xfffffff0(%ecx),%eax 0xc0110d60 <schedule+268>: cmp 0xfffffff0(%ebp),%eax 0xc0110d63 <schedule+271>: je 0xc0110d69 <schedule+277> 0xc0110d65 <schedule+273>: test %eax,%eax 0xc0110d67 <schedule+275>: jne 0xc0110d6a <schedule+278> 0xc0110d69 <schedule+277>: inc %edx 0xc0110d6a <schedule+278>: add $0x14,%edx 0xc0110d6d <schedule+281>: sub 0x24(%esi),%edx 0xc0110d70 <schedule+284>: jmp 0xc0110d7e <schedule+298>
Additionally, I did a "ps" in kdb and found dozens of "cron" and "sh" started. I suspect that these processes were somehow related to the lockup, as the machine should've been idle for hours, and no cron jobs were scheduled for the time.
The captured "bta" is availible if anyone is interested. I don't know of a way to reproduce this offhand.
Signature · 2 lines
-Steven Freedom is the freedom to say that two plus two equals four.
Althought I was unable to do any debugging, I found the same thing earlier today. Syslog showed everything normal (uptimed reports, MARK, etc) and ctrl-sysrq worked, but it had frozen hard. I was using xlock, and it was stopped in the middle of an opengl saver. I had suspected it was related to the nvidia drivers (I just got AGP enabled yesterday) but this looks a lot like what I was seeing.
(On a side note, does anyone know if the K7 optimizations have been fixed for those of us using the KK266 mobo?)
On Sun, 08 Apr 2001, Steven Walter did have cause to say:
Quoted 26 lines
Earlier today, I tried to unlock xscreensaver on my desktop. After typing in the password, it said "Checking..." and then hung. In response, I hit Ctrl+Alt+Bksp, which killed X. However, gdm did not restart X. I tried logging in on the console, but none of them were responsive; characters would echo, but nothing else.
In hopes of finding the problem, I entered kdb, and did a bta. All processes were hung in exactly the same spot,
schedule+0x268! This code is as follows:0xc0110d50 <schedule+252>: jne 0xc0110d7e <schedule+298> 0xc0110d52 <schedule+254>: test %eax,%eax 0xc0110d54 <schedule+256>: jne 0xc0110d72 <schedule+286> 0xc0110d56 <schedule+258>: mov 0xffffffe4(%ecx),%edx 0xc0110d59 <schedule+261>: test %edx,%edx 0xc0110d5b <schedule+263>: je 0xc0110d7e <schedule+298> 0xc0110d5d <schedule+265>: mov 0xfffffff0(%ecx),%eax 0xc0110d60 <schedule+268>: cmp 0xfffffff0(%ebp),%eax 0xc0110d63 <schedule+271>: je 0xc0110d69 <schedule+277> 0xc0110d65 <schedule+273>: test %eax,%eax 0xc0110d67 <schedule+275>: jne 0xc0110d6a <schedule+278> 0xc0110d69 <schedule+277>: inc %edx 0xc0110d6a <schedule+278>: add $0x14,%edx 0xc0110d6d <schedule+281>: sub 0x24(%esi),%edx 0xc0110d70 <schedule+284>: jmp 0xc0110d7e <schedule+298>
Quoted 15 lines
Additionally, I did a "ps" in kdb and found dozens of "cron" and "sh" started. I suspect that these processes were somehow related to the lockup, as the machine should've been idle for hours, and no cron jobs were scheduled for the time.
The captured "bta" is availible if anyone is interested. I don't know of a way to reproduce this offhand.
Signature · 7 lines
-Steven Freedom is the freedom to say that two plus two equals four. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
---
_.-=<Disconnect>=-._
| [email protected] | And Remember... \ [email protected] / He who controls Purple controls the Universe.. PGP Key given on Request Or at least the Purple parts!
-----BEGIN GEEK CODE BLOCK-----
Version: 3.1 [www.ebb.org/ungeek]
GIT/CC/CM/AT d--(-)@ s+:-- a-->? C++++$ ULBS*++++$ P+>+++ L++++>+++++ E--- W+++ N+@ o+>$ K? w--->+++++ O- M V-- PS+() PE Y+@ PGP++() t 5--- X-- R tv+@ b++++>$ DI++++ D++(+++) G++ e* h(-)* r++ y++ ------END GEEK CODE BLOCK------