Linked by Thom Holwerda on Wed 13th Aug 2008 23:50 UTC
Mac OS X An interesting article has been making its way around the internet the past few days, titled "Top 10 Usability Highs Of Mac OS". Mac OS X indeed does some things very, very right, just like many other operating systems and graphical environments do some things very, very right. The issue with the list of the article in question is that many of the items on the list are not exactly examples of "Usability Highs" at all.
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RE[2]: a kernel panic?
by ggeldenhuys on Thu 14th Aug 2008 08:40 UTC in reply to "RE: a kernel panic?"
ggeldenhuys
Member since:
2006-11-13

Since I run bleeding edge -mm series kernels on my laptop I have seen many of them.


Just to make sure everybody knows.... kernel panics are expected in bleeding edge software. No matter the OS.

What happens is that the graphical desktop just stops. No mouse movement, no screen updates.


Do you know if Linux has something similar to what I used in OS/2. Back in the days when I used OS/2, I had a watchdog daemon running and it was link to any external switch - I simply used my joystick. If a system crash occured that froze the keyboard and mouse, I could click the joystick button and the watchdog daemon kills the hanging program returning control back to me. This was awesome. At the moment (under Linux), I go to my co-workers PC, SSH into mine and kill the process myself. I would love the watchdog/joystick feature under Linux though!

Reply Parent Score: 2

RE[3]: a kernel panic?
by Laurence on Thu 14th Aug 2008 11:23 in reply to "RE[2]: a kernel panic?"
Laurence Member since:
2007-03-26

Do you know if Linux has something similar to what I used in OS/2. Back in the days when I used OS/2, I had a watchdog daemon running and it was link to any external switch - I simply used my joystick. If a system crash occured that froze the keyboard and mouse, I could click the joystick button and the watchdog daemon kills the hanging program returning control back to me. This was awesome. At the moment (under Linux), I go to my co-workers PC, SSH into mine and kill the process myself. I would love the watchdog/joystick feature under Linux though!

If it's just an X application that's locking then [alt]+[F7] into the CLI then proceed to do the same as what you're co-workers would have done except from your own desktop.

You can then [alt]+[F1] to get back into your X session.

You may need to check I got the F key's correct though.(I wasn't 100% certain on them)

Reply Parent Score: 2

RE[3]: a kernel panic?
by zlynx on Thu 14th Aug 2008 13:53 in reply to "RE[2]: a kernel panic?"
zlynx Member since:
2005-07-20

No, there is no watchdog daemon to return control to the user. Once the kernel panics, user-space is not run anymore. Unless it is set for a timed reboot or a kdump, the kernel goes into an idle loop and that is the end of everything.

Reply Parent Score: 3

RE[4]: a kernel panic?
by ichi on Thu 14th Aug 2008 15:35 in reply to "RE[3]: a kernel panic?"
ichi Member since:
2007-03-06

Enable "Watchdog Timer support" in the kernel and use the watchdog daemon: ftp://ibiblio.org/pub/Linux/system/daemons/watchdog/

Reply Parent Score: 4

RE[4]: a kernel panic?
by righard on Thu 14th Aug 2008 16:03 in reply to "RE[3]: a kernel panic?"
righard Member since:
2007-12-26

You can still use this after a kernel panic:
http://en.wikipedia.org/wiki/Magic_SysRq_key

Reply Parent Score: 1