Re: Slow DOWN, please!!!

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To: Mariusz Kozlowski <m.kozlowski@...>
Cc: Andrew Morton <akpm@...>, Dan Noe <dpn@...>, <torvalds@...>, <rjw@...>, <davem@...>, <linux-kernel@...>, <jirislaby@...>
Date: Friday, May 2, 2008 - 6:20 am

Mariusz Kozlowski <m.kozlowski@tuxland.pl> writes:

A lot of bugs are not architecture specific. Or when they are architecture
specific they only affect some specific machines in that architecture.
But really a lot of bugs should happen on most architectures. Just focussing
on lots of boxes is not necessarily productive.

My recommendation would be to concentrate on deeper testing (more coverage)
on the architectures you have.

A interestig project for example would be to play with the kernel gcov patch that
was recently reposted (I hope it makes mainline eventually). Apply that patch,
run all the test suites and tests you usually run on your favourite test box
and check how much of the code that is compiled into your kernel was really tested
using the coverage information Then think: what additional tests can you do to get 
more coverage?  Write tests then? Or just write descriptions on what is not tested 
and send them to the list, as a project for others looking to contribute to the 
kernel.

-Andi
--
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Messages in current thread:
Slow DOWN, please!!!, David Miller, (Tue Apr 29, 10:03 pm)
Re: Slow DOWN, please!!!, Rafael J. Wysocki, (Wed Apr 30, 3:36 pm)
Re: Slow DOWN, please!!!, Andrew Morton, (Wed Apr 30, 4:15 pm)
Re: Slow DOWN, please!!!, Linus Torvalds, (Wed Apr 30, 4:31 pm)
RFC: starting a kernel-testers group for newbies, Adrian Bunk, (Wed Apr 30, 8:31 pm)
Re: RFC: starting a kernel-testers group for newbies, Arjan van de Ven, (Wed Apr 30, 3:03 am)
Re: RFC: starting a kernel-testers group for newbies, Adrian Bunk, (Thu May 1, 7:30 am)
Re: RFC: starting a kernel-testers group for newbies, Arjan van de Ven, (Wed Apr 30, 10:20 am)
Re: RFC: starting a kernel-testers group for newbies, Adrian Bunk, (Thu May 1, 9:21 am)
Re: RFC: starting a kernel-testers group for newbies, Paul Mackerras, (Thu May 1, 10:08 pm)
Re: RFC: starting a kernel-testers group for newbies, Josh Boyer, (Thu May 1, 11:10 pm)
Re: RFC: starting a kernel-testers group for newbies, Paul Mackerras, (Fri May 2, 12:09 am)
Re: RFC: starting a kernel-testers group for newbies, Adrian Bunk, (Fri May 2, 4:29 am)
Re: RFC: starting a kernel-testers group for newbies, Linus Torvalds, (Fri May 2, 10:58 am)
Re: RFC: starting a kernel-testers group for newbies, Carlos R. Mafra, (Fri May 2, 11:44 am)
Re: RFC: starting a kernel-testers group for newbies, Linus Torvalds, (Fri May 2, 12:28 pm)
Re: RFC: starting a kernel-testers group for newbies, Carlos R. Mafra, (Fri May 2, 1:15 pm)
RE: RFC: starting a kernel-testers group for newbies, Pallipadi, Venkatesh, (Fri May 2, 2:02 pm)
Re: RFC: starting a kernel-testers group for newbies, Carlos R. Mafra, (Fri May 9, 3:30 pm)
Re: RFC: starting a kernel-testers group for newbies, Paul Mackerras, (Fri May 2, 6:16 am)
Re: RFC: starting a kernel-testers group for newbies, Adrian Bunk, (Fri May 2, 7:58 am)
Re: RFC: starting a kernel-testers group for newbies, Andrew Morton, (Thu May 1, 11:49 am)
Re: RFC: starting a kernel-testers group for newbies, Arjan van de Ven, (Wed Apr 30, 9:13 pm)
Re: RFC: starting a kernel-testers group for newbies, Adrian Bunk, (Fri May 2, 5:00 am)
Re: RFC: starting a kernel-testers group for newbies, Theodore Tso, (Thu May 1, 1:24 pm)
Re: RFC: starting a kernel-testers group for newbies, Andrew Morton, (Thu May 1, 3:26 pm)
Re: RFC: starting a kernel-testers group for newbies, Steven Rostedt, (Thu May 1, 3:39 pm)
Re: RFC: starting a kernel-testers group for newbies, Steven Rostedt, (Thu May 1, 12:38 pm)
Re: RFC: starting a kernel-testers group for newbies, Andrew Morton, (Thu May 1, 1:18 pm)
Re: RFC: starting a kernel-testers group for newbies, Rafael J. Wysocki, (Thu May 1, 8:53 am)
Re: RFC: starting a kernel-testers group for newbies, Andrew Morton, (Thu May 1, 4:13 am)
Re: RFC: starting a kernel-testers group for newbies, Arjan van de Ven, (Wed Apr 30, 10:15 am)
Re: RFC: starting a kernel-testers group for newbies, Rene Herman, (Sun May 4, 8:45 am)
Re: RFC: starting a kernel-testers group for newbies, Pekka Enberg, (Sun May 4, 9:00 am)
Re: RFC: starting a kernel-testers group for newbies, Rene Herman, (Sun May 4, 9:19 am)
Re: RFC: starting a kernel-testers group for newbies, David Woodhouse, (Thu May 1, 8:42 am)
Re: RFC: starting a kernel-testers group for newbies, Benny Halevy, (Mon May 5, 6:03 am)
Re: RFC: starting a kernel-testers group for newbies, Arjan van de Ven, (Wed Apr 30, 11:02 am)
Re: RFC: starting a kernel-testers group for newbies, Enrico Weigelt, (Thu May 1, 6:30 am)
Re: RFC: starting a kernel-testers group for newbies, Adrian Bunk, (Thu May 1, 9:02 am)
Re: RFC: starting a kernel-testers group for newbies, David Miller, (Wed Apr 30, 8:41 pm)
Re: RFC: starting a kernel-testers group for newbies, Adrian Bunk, (Thu May 1, 9:23 am)
Re: Slow DOWN, please!!!, H. Peter Anvin, (Wed Apr 30, 5:52 pm)
Re: Slow DOWN, please!!!, , (Thu May 1, 12:39 pm)
Re: Slow DOWN, please!!!, Bob Tracy, (Wed Apr 30, 11:24 pm)
Re: Slow DOWN, please!!!, Andrew Morton, (Wed Apr 30, 4:54 pm)
Re: Slow DOWN, please!!!, Jiri Kosina, (Fri May 9, 5:28 am)
Re: Slow DOWN, please!!!, Jeff Garzik, (Fri May 9, 11:00 am)
Re: Slow DOWN, please!!!, Dmitri Vorobiev, (Wed Apr 30, 5:42 pm)
Re: Slow DOWN, please!!!, Andrew Morton, (Wed Apr 30, 6:10 pm)
Re: Slow DOWN, please!!!, Jan Engelhardt, (Thu May 1, 2:15 am)
Re: Slow DOWN, please!!!, Dmitri Vorobiev, (Wed Apr 30, 7:04 pm)
Re: Slow DOWN, please!!!, Linus Torvalds, (Wed Apr 30, 6:19 pm)
Re: Slow DOWN, please!!!, Kevin Winchester, (Thu May 1, 7:06 pm)
Re: Slow DOWN, please!!!, Dmitri Vorobiev, (Wed Apr 30, 6:28 pm)
Re: Slow DOWN, please!!!, Diego Calleja, (Thu May 1, 12:26 pm)
Re: Slow DOWN, please!!!, Stephen Rothwell, (Thu May 1, 9:48 pm)
Re: Slow DOWN, please!!!, Dmitri Vorobiev, (Thu May 1, 12:31 pm)
Re: Slow DOWN, please!!!, Jiri Slaby, (Wed Apr 30, 6:06 pm)
Re: Slow DOWN, please!!!, David Miller, (Wed Apr 30, 5:21 pm)
Re: Slow DOWN, please!!!, Helge Hafting, (Fri May 2, 9:37 am)
Re: Slow DOWN, please!!!, Ingo Molnar, (Wed Apr 30, 6:19 pm)
Re: Slow DOWN, please!!!, Rusty Russell, (Sun May 4, 11:04 pm)
Re: Slow DOWN, please!!!, Ingo Molnar, (Wed Apr 30, 6:35 pm)
Re: Slow DOWN, please!!!, David Miller, (Wed Apr 30, 6:51 pm)
Re: Slow DOWN, please!!!, Adrian Bunk, (Wed Apr 30, 10:48 pm)
Re: Slow DOWN, please!!!, Ingo Molnar, (Wed Apr 30, 9:40 pm)
Re: Slow DOWN, please!!!, Andrew Morton, (Wed Apr 30, 6:49 pm)
Re: Slow DOWN, please!!!, David Miller, (Wed Apr 30, 6:22 pm)
Re: Slow DOWN, please!!!, Rafael J. Wysocki, (Wed Apr 30, 6:39 pm)
Re: Slow DOWN, please!!!, Willy Tarreau, (Wed Apr 30, 7:12 pm)
Re: Slow DOWN, please!!!, Chris Shoemaker, (Wed Apr 30, 8:15 pm)
Re: Slow DOWN, please!!!, Willy Tarreau, (Thu May 1, 1:09 am)
Re: Slow DOWN, please!!!, Rafael J. Wysocki, (Wed Apr 30, 7:59 pm)
Re: Slow DOWN, please!!!, , (Wed Apr 30, 6:54 pm)
Re: Slow DOWN, please!!!, Dmitri Vorobiev, (Wed Apr 30, 6:02 pm)
Re: Slow DOWN, please!!!, Rafael J. Wysocki, (Wed Apr 30, 5:47 pm)
Re: Slow DOWN, please!!!, Dan Noe, (Wed Apr 30, 4:47 pm)
Re: Slow DOWN, please!!!, Andrew Morton, (Wed Apr 30, 4:59 pm)
Re: Slow DOWN, please!!!, Mariusz Kozlowski, (Wed Apr 30, 6:53 pm)
Re: Slow DOWN, please!!!, Andi Kleen, (Fri May 2, 6:20 am)
Re: Slow DOWN, please!!!, Mariusz Kozlowski, (Fri May 2, 11:33 am)
Re: Slow DOWN, please!!!, Andrew Morton, (Wed Apr 30, 7:11 pm)
Re: Slow DOWN, please!!!, Ben Dooks, (Mon May 12, 5:27 am)
Re: Slow DOWN, please!!!, Rafael J. Wysocki, (Wed Apr 30, 5:30 pm)
Re: Slow DOWN, please!!!, Linus Torvalds, (Wed Apr 30, 6:08 pm)
Re: Slow DOWN, please!!!, Andrew Morton, (Wed Apr 30, 5:37 pm)
Re: Slow DOWN, please!!!, Linus Torvalds, (Wed Apr 30, 4:05 pm)
Re: Slow DOWN, please!!!, Paul Mackerras, (Wed Apr 30, 7:29 pm)
Re: Slow DOWN, please!!!, Linus Torvalds, (Wed Apr 30, 11:47 pm)
Re: Slow DOWN, please!!!, Jeff Garzik, (Thu May 1, 12:17 am)
Re: Slow DOWN, please!!!, Alan Cox, (Thu May 1, 5:17 am)
Re: Slow DOWN, please!!!, Linus Torvalds, (Thu May 1, 12:46 am)
Re: Slow DOWN, please!!!, Krzysztof Halasa, (Sun May 4, 9:47 am)
Re: Slow DOWN, please!!!, Jacek Luczak, (Sun May 4, 11:05 am)
Re: Slow DOWN, please!!!, Jeff Garzik, (Wed Apr 30, 9:57 pm)
Re: Slow DOWN, please!!!, Frans Pop, (Wed Apr 30, 10:52 pm)
Re: Slow DOWN, please!!!, Rafael J. Wysocki, (Wed Apr 30, 4:45 pm)
Re: Slow DOWN, please!!!, Stefan Richter, (Thu May 1, 9:54 am)
Re: Slow DOWN, please!!!, Rafael J. Wysocki, (Thu May 1, 10:06 am)
Re: Slow DOWN, please!!!, Linus Torvalds, (Wed Apr 30, 5:37 pm)
Re: Slow DOWN, please!!!, Rafael J. Wysocki, (Wed Apr 30, 6:23 pm)
Re: Slow DOWN, please!!!, , (Wed Apr 30, 6:40 pm)
Re: Slow DOWN, please!!!, Rafael J. Wysocki, (Wed Apr 30, 7:45 pm)
Re: Slow DOWN, please!!!, Adrian Bunk, (Wed Apr 30, 8:38 pm)
Re: Slow DOWN, please!!!, Rafael J. Wysocki, (Wed Apr 30, 8:56 pm)
Re: Slow DOWN, please!!!, Adrian Bunk, (Wed Apr 30, 9:25 pm)
Re: Slow DOWN, please!!!, Rafael J. Wysocki, (Thu May 1, 8:05 am)
Re: Slow DOWN, please!!!, , (Wed Apr 30, 7:57 pm)
Re: Slow DOWN, please!!!, Chris Shoemaker, (Wed Apr 30, 8:01 pm)
Re: Slow DOWN, please!!!, , (Wed Apr 30, 8:14 pm)
Re: Slow DOWN, please!!!, Linus Torvalds, (Wed Apr 30, 8:38 pm)
Re: Slow DOWN, please!!!, Jeremy Fitzhardinge, (Wed Apr 30, 9:39 pm)
Re: Slow DOWN, please!!!, Linus Torvalds, (Wed Apr 30, 6:31 pm)
Re: Slow DOWN, please!!!, Rafael J. Wysocki, (Wed Apr 30, 7:03 pm)
Re: Slow DOWN, please!!!, Willy Tarreau, (Wed Apr 30, 6:46 pm)
Re: Slow DOWN, please!!!, Linus Torvalds, (Wed Apr 30, 7:20 pm)
Re: Slow DOWN, please!!!, Jeremy Fitzhardinge, (Wed Apr 30, 9:30 pm)
Re: Slow DOWN, please!!!, Willy Tarreau, (Thu May 1, 1:35 am)
Re: Slow DOWN, please!!!, Rafael J. Wysocki, (Wed Apr 30, 8:42 pm)
Re: Slow DOWN, please!!!, Linus Torvalds, (Wed Apr 30, 9:19 pm)
Re: Slow DOWN, please!!!, Willy Tarreau, (Thu May 1, 1:50 am)
Re: Slow DOWN, please!!!, Rafael J. Wysocki, (Thu May 1, 7:53 am)
Re: Slow DOWN, please!!!, , (Thu May 1, 3:36 pm)
Re: Slow DOWN, please!!!, Bartlomiej Zolnierkiewicz..., (Thu May 1, 9:16 am)
Re: Slow DOWN, please!!!, Ray Lee, (Thu May 1, 11:29 am)
Re: Slow DOWN, please!!!, Willy Tarreau, (Thu May 1, 3:03 pm)
Re: Slow DOWN, please!!!, Rafael J. Wysocki, (Thu May 1, 9:53 am)
Re: Slow DOWN, please!!!, Bartlomiej Zolnierkiewicz..., (Thu May 1, 10:35 am)
Re: Slow DOWN, please!!!, Will Newton, (Thu May 1, 8:11 am)
Re: Slow DOWN, please!!!, Linus Torvalds, (Wed Apr 30, 9:40 pm)
Re: Slow DOWN, please!!!, Rafael J. Wysocki, (Thu May 1, 7:38 am)
Re: Slow DOWN, please!!!, Arjan van de Ven, (Wed Apr 30, 10:28 am)
Re: Slow DOWN, please!!!, Rafael J. Wysocki, (Thu May 1, 8:41 am)
Re: Slow DOWN, please!!!, Arjan van de Ven, (Wed Apr 30, 11:06 am)
Re: Slow DOWN, please!!!, Frans Pop, (Wed Apr 30, 11:53 pm)
Re: Slow DOWN, please!!!, Nigel Cunningham, (Wed Apr 30, 10:31 pm)
Re: Slow DOWN, please!!!, Stephen Clark, (Thu May 1, 2:32 pm)
Re: Slow DOWN, please!!!, Al Viro, (Wed Apr 30, 10:21 pm)
Re: Slow DOWN, please!!!, Rene Herman, (Sat May 3, 11:26 pm)
Re: Slow DOWN, please!!!, , (Thu May 1, 1:19 am)
Re: Slow DOWN, please!!!, David Miller, (Wed Apr 30, 9:51 pm)
Re: Slow DOWN, please!!!, Linus Torvalds, (Wed Apr 30, 10:01 pm)
Re: Slow DOWN, please!!!, David Miller, (Wed Apr 30, 10:17 pm)
Re: Slow DOWN, please!!!, Andrew Morton, (Wed Apr 30, 9:31 pm)
Re: Slow DOWN, please!!!, Linus Torvalds, (Wed Apr 30, 9:43 pm)
Re: Slow DOWN, please!!!, Rafael J. Wysocki, (Thu May 1, 6:59 am)
Re: Slow DOWN, please!!!, Linus Torvalds, (Thu May 1, 11:26 am)
Re: Slow DOWN, please!!!, Chris Frey, (Thu May 1, 2:35 pm)
Re: Slow DOWN, please!!!, Enrico Weigelt, (Fri May 2, 9:22 am)
Re: Slow DOWN, please!!!, Rafael J. Wysocki, (Thu May 1, 1:09 pm)
Re: Slow DOWN, please!!!, Linus Torvalds, (Thu May 1, 1:41 pm)
Re: Slow DOWN, please!!!, Rafael J. Wysocki, (Thu May 1, 5:59 pm)
Re: Slow DOWN, please!!!, Stefan Richter, (Fri May 2, 8:17 am)
Re: Slow DOWN, please!!!, Friedrich , (Thu May 1, 3:39 pm)
Re: Slow DOWN, please!!!, Willy Tarreau, (Thu May 1, 2:50 pm)
Re: Slow DOWN, please!!!, Rafael J. Wysocki, (Thu May 1, 6:17 pm)
Re: Slow DOWN, please!!!, , (Thu May 1, 3:07 pm)
Re: Slow DOWN, please!!!, Willy Tarreau, (Thu May 1, 3:28 pm)
Re: Slow DOWN, please!!!, , (Thu May 1, 3:46 pm)
Re: Slow DOWN, please!!!, Willy Tarreau, (Thu May 1, 3:53 pm)
Re: Slow DOWN, please!!!, Al Viro, (Thu May 1, 2:11 pm)
Re: Slow DOWN, please!!!, Linus Torvalds, (Thu May 1, 2:23 pm)
Re: Slow DOWN, please!!!, Al Viro, (Thu May 1, 3:37 pm)
Re: Slow DOWN, please!!!, Joel Becker, (Thu May 1, 4:07 pm)
Re: Slow DOWN, please!!!, Andrew Morton, (Thu May 1, 3:58 pm)
Re: Slow DOWN, please!!!, Willy Tarreau, (Thu May 1, 2:58 pm)
Re: Slow DOWN, please!!!, Linus Torvalds, (Thu May 1, 2:30 pm)
Re: Slow DOWN, please!!!, Andrew Morton, (Wed Apr 30, 6:52 pm)
Re: Slow DOWN, please!!!, Willy Tarreau, (Wed Apr 30, 7:21 pm)
Re: Slow DOWN, please!!!, Chris Shoemaker, (Wed Apr 30, 7:38 pm)
Re: Slow DOWN, please!!!, Andrew Morton, (Wed Apr 30, 6:41 pm)
Re: Slow DOWN, please!!!, Tarkan Erimer, (Thu May 1, 8:31 am)
Re: Slow DOWN, please!!!, Stefan Richter, (Thu May 1, 11:34 am)
Re: Slow DOWN, please!!!, Tarkan Erimer, (Fri May 2, 10:05 am)
Re: Slow DOWN, please!!!, Adrian Bunk, (Wed Apr 30, 8:57 pm)
Re: Slow DOWN, please!!!, Theodore Tso, (Wed Apr 30, 9:35 pm)
Re: Slow DOWN, please!!!, Linus Torvalds, (Wed Apr 30, 9:25 pm)
Re: Slow DOWN, please!!!, Adrian Bunk, (Wed Apr 30, 10:13 pm)
Re: Slow DOWN, please!!!, Linus Torvalds, (Wed Apr 30, 10:30 pm)
Re: Slow DOWN, please!!!, Pavel Machek, (Wed May 14, 10:55 am)
Re: Slow DOWN, please!!!, Adrian Bunk, (Thu May 1, 2:54 pm)
Re: Slow DOWN, please!!!, Rafael J. Wysocki, (Wed Apr 30, 7:23 pm)
Re: Slow DOWN, please!!!, , (Wed Apr 30, 7:41 pm)
Re: Slow DOWN, please!!!, Rafael J. Wysocki, (Wed Apr 30, 7:51 pm)
Re: Slow DOWN, please!!!, Linus Torvalds, (Wed Apr 30, 4:14 pm)
Re: Slow DOWN, please!!!, Greg KH, (Wed Apr 30, 7:34 pm)
Re: Slow DOWN, please!!!, Rafael J. Wysocki, (Wed Apr 30, 4:56 pm)
Re: Slow DOWN, please!!!, Andrew Morton, (Wed Apr 30, 4:00 pm)
Re: Slow DOWN, please!!!, Rafael J. Wysocki, (Wed Apr 30, 4:20 pm)
Re: Slow DOWN, please!!!, Peter Teoh, (Wed Apr 30, 10:48 am)
Re: Slow DOWN, please!!!, David Newall, (Wed Apr 30, 12:03 am)
Re: Slow DOWN, please!!!, Tarkan Erimer, (Wed Apr 30, 3:11 am)
Re: Slow DOWN, please!!!, David Newall, (Wed Apr 30, 9:28 am)
Re: Slow DOWN, please!!!, , (Wed Apr 30, 10:41 am)
Re: Slow DOWN, please!!!, Mike Galbraith, (Wed Apr 30, 9:38 am)
Re: Slow DOWN, please!!!, David Miller, (Wed Apr 30, 12:18 am)
Re: Slow DOWN, please!!!, David Newall, (Wed Apr 30, 9:04 am)
Re: Slow DOWN, please!!!, Linus Torvalds, (Wed Apr 30, 10:51 am)
Re: Slow DOWN, please!!!, David Newall, (Wed Apr 30, 2:21 pm)
Re: Slow DOWN, please!!!, Linus Torvalds, (Wed Apr 30, 2:27 pm)
Re: Slow DOWN, please!!!, Chris Friesen, (Wed Apr 30, 3:06 pm)
Re: Slow DOWN, please!!!, Linus Torvalds, (Wed Apr 30, 3:13 pm)
Re: Slow DOWN, please!!!, David Newall, (Wed Apr 30, 3:22 pm)
Re: Slow DOWN, please!!!, Linus Torvalds, (Wed Apr 30, 3:42 pm)
Re: Slow DOWN, please!!!, David Newall, (Wed Apr 30, 2:55 pm)
Re: Slow DOWN, please!!!, Linus Torvalds, (Wed Apr 30, 3:08 pm)
Re: Slow DOWN, please!!!, David Newall, (Wed Apr 30, 3:16 pm)
Re: Slow DOWN, please!!!, Linus Torvalds, (Wed Apr 30, 3:25 pm)
Re: Slow DOWN, please!!!, David Newall, (Thu May 1, 12:31 am)
Re: Slow DOWN, please!!!, Kasper Sandberg, (Thu May 1, 11:28 am)
Re: Slow DOWN, please!!!, Lennart Sorensen, (Thu May 1, 9:49 am)
Re: Slow DOWN, please!!!, David Miller, (Thu May 1, 12:37 am)
Re: Slow DOWN, please!!!, Michael Kerrisk, (Wed Apr 30, 9:18 am)