Re: source line numbers with x86_64 modules? [Was: Re: [patch] measurements, numbers about CONFIG_OPTIMIZE_INLINING=y impact]

2009-01-12 Thread Eric W. Biederman
Mike Snitzer snit...@gmail.com writes: On Sat, Jan 10, 2009 at 8:28 PM, Ingo Molnar mi...@elte.hu wrote: Note, back when kdump was added to the kernel many moons ago i strongly supported it and helped out with the patches, etc. I still think it might have the potential to become big - but it

Re: source line numbers with x86_64 modules? [Was: Re: [patch] measurements, numbers about CONFIG_OPTIMIZE_INLINING=y impact]

2009-01-11 Thread Andreas Dilger
On Jan 10, 2009 16:15 -0500, Theodore Ts'o wrote: In my experience, there are very few kernel versions and hardware for which kdump works. I've talked to the people who have to make kdump work, and every 12-18 months, with a new set of enterprise kernels comes out, they have to go and fix

Re: source line numbers with x86_64 modules? [Was: Re: [patch] measurements, numbers about CONFIG_OPTIMIZE_INLINING=y impact]

2009-01-11 Thread Mike Snitzer
On Sun, Jan 11, 2009 at 5:11 AM, Andreas Dilger adil...@sun.com wrote: On Jan 10, 2009 16:15 -0500, Theodore Ts'o wrote: In my experience, there are very few kernel versions and hardware for which kdump works. I've talked to the people who have to make kdump work, and every 12-18 months,

Re: source line numbers with x86_64 modules? [Was: Re: [patch] measurements, numbers about CONFIG_OPTIMIZE_INLINING=y impact]

2009-01-10 Thread Linus Torvalds
On Sat, 10 Jan 2009, Andi Kleen wrote: I think that's mostly because kexec from arbitary context is a somewhat unstable concept. I think that's the understatement of the year. We have tons of problems with standard suspend-to-ram, and that's when the suspend sequence has done its best to

Re: source line numbers with x86_64 modules? [Was: Re: [patch] measurements, numbers about CONFIG_OPTIMIZE_INLINING=y impact]

2009-01-10 Thread Ingo Molnar
* Linus Torvalds torva...@linux-foundation.org wrote: As far as I'm concerned, digital cameras have been more useful than kernel dumps to kernel debugging. Yes, especially ones with VGA video capture. (I caught a oops+triple-fault crash via that trick once, which was not serial-console