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2005-03-29[PATCH] FRV: Fix kernel configurationDavid Howells
This fixes the FRV configuration to work with 2.6.12-rc1. It does this by breaking out the kernel hacking menu into a separate file, in the same way this is done in other archs. Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-03-28[PATCH] uml: add kconfig debug depsPaolo \'Blaisorblade\' Giarrusso
Add some needed dependencies for some debug options and hide the MAGIC_SYSRQ option for UML, since it displays this option in another menu. Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-03-13[PATCH] consolidate CONFIG_DEBUG_INFOAdrian Bunk
We seem to have two CONFIG_DEBUG_INFO entries in Kconfig.debug. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-03-13Kconfig: cleanup kernel hacking menuSam Ravnborg
o This properly indents the kernel hacking menu. o Move LOG_BUF_SHIFT into kernel hacking menu (it already depended on DEBUG_KERNEL). o Add DEBUG_KERNEL dependency to EARLY_PRINTK, DEBUG_PREEMPT and FRAME_POINTER. o Remove overlong dependency, which included practically every arch. o Merge the two MAGIC_SYSRQ menu entries. o Remove unnecessary "default n" options. Signed-off-by: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2005-03-07[PATCH] add timing information to printk messagesTim Bird
Here's a little patch which is useful for showing timing information for kernel bootup activities. This patch adds a new Kconfig option under "Kernel Hacking" and a new option for the kernel command line. It also provides a script for showing delta information. Note that the timing data may not be correct on some platforms until after time_init() is called. Recently (as of about 2.6.10) I found that the message log produced by dmesg is truncated when I use this feature. That is, the first few printk messages of the boot sequence are not in the dmesg output, although they are printed to console during startup. This is a new behavior - dmesg output was fine as of 2.6.9. Increasing CONFIG_LOG_BUF_SHIFT had no effect on the truncation. Has something changed with printk recently? For more information on this patch, see: http://tree.celinuxforum.org/CelfPubWiki/InstrumentedPrintk Here's some sample output: ... [4294667.296000] Kernel command line: ro root=/dev/nfs ip=dhcp hdc=ide-scsi console=vga console=ttyS0,115200 [4294667.296000] ide_setup: hdc=ide-scsi [4294667.296000] Initializing CPU#0 [4294667.296000] PID hash table entries: 512 (order: 9, 8192 bytes) [ 0.000000] Detected 1995.620 MHz processor. [ 21.397369] Using tsc for high-res timesource [ 21.399820] Console: colour VGA+ 80x25 [ 21.537244] Dentry cache hash table entries: 32768 (order: 5, 131072 bytes) [ 21.544547] Inode-cache hash table entries: 16384 (order: 4, 65536 bytes) [ 21.555066] Memory: 125076k/130240k available (2002k kernel code, 4556k reserved, 1006k data, 140k init, 0k highmem) [ 21.565775] Checking if this processor honours the WP bit even in supervisor mode... Ok. [ 21.574089] Calibrating delay loop... 3940.35 BogoMIPS (lpj=1970176) [ 21.596511] Mount-cache hash table entries: 512 (order: 0, 4096 bytes) [ 21.603263] CPU: After generic identify, caps: bfebfbff 00000000 00000000 00000000 00004400 00000000 00000000 [ 21.603276] CPU: After vendor identify, caps: bfebfbff 00000000 00000000 00000000 00004400 00000000 00000000 [ 21.603287] CPU: Trace cache: 12K uops, L1 D cache: 8K [ 21.608884] CPU: L2 cache: 128K ... And now the patch... Signed-off-by: Tim Bird <tim.bird@am.sony.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-01-20[PATCH] allow all architectures to set CONFIG_DEBUG_PREEMPTIngo Molnar
We think it'll work OK. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-01-15[PATCH] PA-RISC: Sort out io accessorsMatthew Wilcox
- sparse annotations for ioremap/iounmap (Randolph Chung) - Turn gsc_readb, __raw_readb and readb functions into static inline functions (Matthew Wilcox) - Document the difference between the gsc_readb, __raw_readb and readb families of functions (Matthew Wilcox) - Add a debugging option to determine when they are being used incorrectly (Matthew Wilcox) - Make memcpy_fromio's second argument const (Matthew Wilcox) Signed-off-by: Matthew Wilcox <willy@parisc-linux.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-01-14[PATCH] uml: readd CONFIG_MAGIC_SYSRQ for UMLPaolo \'Blaisorblade\' Giarrusso
This config option was lost during the creation of lib/Kconfig.debug, due to a bad expressed dependency; I also moved the option back to its original place for UML (it is near CONFIG_MCONSOLE since it depends on that). Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-01-12[PATCH] PPC64 can do preempt debug tooPaul Mackerras
This patch enables the DEBUG_PREEMPT config option for PPC64. I have this turned on on my desktop G5 and it isn't finding any problems. (It did find one problem, in flush_tlb_pending(), that I have just sent a patch for.) BTW, do we really need to restrict which architectures the config option is available on? Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-01-09Merge kroah.com:/home/greg/linux/BK/bleed-2.6Greg Kroah-Hartman
into kroah.com:/home/greg/linux/BK/usb-2.6
2005-01-07[PATCH] DEBUG_BUGVERBOSE for i386Adrian Bunk
The patch below implements CONFIG_DEBUG_BUGVERBOSE for i386 (more exactly, it allows disabling the verbose BUG() reporting). Also, require CONFIG_EMBEDDED for this option: we don't want to make it easy for people to disable useful debug info. (With lots of help from Roman Zippel <zippel@linux-m68k.org>) Signed-off-by: Adrian Bunk <bunk@fs.tum.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-01-07[PATCH] remove the BKL by turning it into a semaphoreIngo Molnar
This is the current remove-BKL patch. I test-booted it on x86 and x64, trying every conceivable combination of SMP, PREEMPT and PREEMPT_BKL. All other architectures should compile as well. (most of the testing was done with the zaphod patch undone but it applies cleanly on vanilla -mm3 as well and should work fine.) this is the debugging-enabled variant of the patch which has two main debugging features: - debug potentially illegal smp_processor_id() use. Has caught a number of real bugs - e.g. look at the printk.c fix in the patch. - make it possible to enable/disable the BKL via a .config. If this goes upstream we dont want this of course, but for now it gives people a chance to find out whether any particular problem was caused by this patch. This patch has one important fix over the previous BKL patch: on PREEMPT kernels if we preempted BKL-using code then the code still auto-dropped the BKL by mistake. This caused a number of breakages for testers, which breakages went away once this bug was fixed. Also the debugging mechanism has been improved alot relative to the previous BKL patch. Would be nice to test-drive this in -mm. There will likely be some more smp_processor_id() false positives but they are 1) harmless 2) easy to fix up. We could as well find more real smp_processor_id() related breakages as well. The most noteworthy fact is that no BKL-using code was found yet that relied on smp_processor_id(), which is promising from a compatibility POV. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2004-12-15debugfs: add debugfsGreg Kroah-Hartman
debugfs is a filesystem that is just for debug data. Start moving stuff out of proc and sysfs now :) Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>
2004-11-18[PATCH] m32r: Kconfig.debug supportHirokazu Takata
This patch updates Kconfig and add Kconfig.debug for m32r. - arch/m32r/Kconfig: Move "Kernel hacking" menu to Kconfig.debug. - arch/m32r/Kconfig.debug: Newly added. - lib/Kconfig.debug: Add m32r arch. Signed-off-by: Hirokazu Takata <takata@linux-m32r.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2004-10-31[PATCH] parisc: Kconfig debugging optionsMatthew Wilcox
PA-RISC does have spinlock debugging and doesn't have the frame pointer option. USERMODE had been added twice to spinlock debugging, so remove that. Committed-by: Randolph Chung <tausq@parisc-linux.org> Committed-by: Matthew Wilcox <willy@parisc-linux.org>
2004-10-27[PATCH] uml: Kconfig.debug updateChris Wedgwood
Update Kconfig.debug so we get SYSRQ back and also the spinlock debugging options. Signed-off-by: Chris Wedgwood <cw@f00f.org> Acked-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2004-10-27Merge bk://linux-sam.bkbits.net/kbuildSam Ravnborg
into mars.ravnborg.org:/home/sam/bk/to-linus
2004-10-20kobject: add CONFIG_DEBUG_KOBJECTGreg Kroah-Hartman
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>
2004-10-19[PATCH] Enable config_schedstats for all archesKenneth W. Chen
Config option CONFIG_SCHEDSTATS is currently enabled via arch specific Kconfig.debug. Only x86 and ppc arches has code to turn it on. Why not put it in generic lib/Kconfig.debug so it is done once to enable everyone? Signed-off-by: Ken Chen <kenneth.w.chen@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2004-10-17kconfig.debug: mention that DEBUG_SLAB can slow down machine quite a bitDenis Vlasenko
I experienced x3 slowdown due to this option being set. Please add this small warning to DEBUG_SLAB help text. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2004-09-02[PATCH] ppc64: enable DEBUG_SPINLOCK_SLEEPAnton Blanchard
DEBUG_SPINLOCK_SLEEP is useful on ppc64, so allow it to be selected. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2004-08-16kconfig/all archs: Introduce Kconfig.debugSam Ravnborg
Localize Kconfig debug options into one file (lib/Kconfig.debug) for easier maintenance, searching, and menu-building. Updated to 2.6.8. Summary of changes: . localizes the following symbols in lib/Kconfig.debug: DEBUG_KERNEL, MAGIC_SYSRQ, DEBUG_SLAB, DEBUG_SPINLOCK, DEBUG_SPINLOCK_SLEEP, DEBUG_HIGHMEM, DEBUG_BUGVERBOSE, DEBUG_INFO and FRAME_POINTER for some instances of it (if it's freely user-selectable) but not for the cases where it's forced or it depends on some other options. . adds DEBUG_KERNEL requirement to some DEBUG_vars; . remove KALLSYMS from S390-specific kernel hacking menu; use KALLSYMS in the EMBEDDED menu instead; . add CRIS and M68KNOMMU symbols for use in lib/Kconfig.debug; . eliminate duplicate "General setup" labels in sparc64 config; . whitespace cleanup; . fixed a few trival typos; Portions of the original patch were also done by Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> Signed-off-by: Randy Dunlap <rddunlap@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
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