09 Dec, 2006

5 commits

• 6b1b60f41   [PATCH] fault-injection: defaults likely to please a new user ... Browse Code »

  Assign defaults most likely to please a new user:
  1) generate some logging output
  (verbose=2)
  2) avoid injecting failures likely to lock up UI
  (ignore_gfp_wait=1, ignore_gfp_highmem=1)

  Signed-off-by: Don Mullis
  Cc: Akinobu Mita
  Signed-off-by: Andrew Morton
  Signed-off-by: Linus Torvalds

  Don Mullis

  2006-12-09 00:29:03 +0800  
• 08b3df2d1   [PATCH] fault-injection: Use bool-true-false throughout ... Browse Code »

  Use bool-true-false throughout.

  Signed-off-by: Don Mullis
  Cc: Akinobu Mita
  Signed-off-by: Andrew Morton
  Signed-off-by: Linus Torvalds

  Don Mullis

  2006-12-09 00:29:03 +0800  
• 329409aed   [PATCH] fault injection: stacktrace filtering ... Browse Code »

  This patch provides stacktrace filtering feature.

  The stacktrace filter allows failing only for the caller you are
  interested in.

  For example someone may want to inject kmalloc() failures into
  only e100 module. they want to inject not only direct kmalloc() call,
  but also indirect allocation, too.

  - e100_poll --> netif_receive_skb --> packet_rcv_spkt --> skb_clone
  --> kmem_cache_alloc

  This patch enables to detect function calls like this by stacktrace
  and inject failures. The script Documentaion/fault-injection/failmodule.sh
  helps it.

  The range of text section of loaded e100 is expected to be
  [/sys/module/e100/sections/.text, /sys/module/e100/sections/.exit.text)

  So failmodule.sh stores these values into /debug/failslab/address-start
  and /debug/failslab/address-end. The maximum stacktrace depth is specified
  by /debug/failslab/stacktrace-depth.

  Please see the example that demonstrates how to inject slab allocation
  failures only for a specific module
  in Documentation/fault-injection/fault-injection.txt

  [dwm@meer.net: reject failure if any caller lies within specified range]
  Signed-off-by: Akinobu Mita
  Signed-off-by: Don Mullis
  Signed-off-by: Andrew Morton
  Signed-off-by: Linus Torvalds

  Akinobu Mita

  2006-12-09 00:29:03 +0800  
• f4f154fd9   [PATCH] fault injection: process filtering for fault-injection capabilities ... Browse Code »

  This patch provides process filtering feature.
  The process filter allows failing only permitted processes
  by /proc//make-it-fail

  Please see the example that demostrates how to inject slab allocation
  failures into module init/cleanup code
  in Documentation/fault-injection/fault-injection.txt

  Signed-off-by: Akinobu Mita
  Signed-off-by: Andrew Morton
  Signed-off-by: Linus Torvalds

  Akinobu Mita

  2006-12-09 00:29:02 +0800  
• 6ff1cb355   [PATCH] fault-injection capabilities infrastructure ... Browse Code »

  This patch provides base functions implement to fault-injection
  capabilities.

  - The function should_fail() is taken from failmalloc-1.0
  (http://www.nongnu.org/failmalloc/)

  [akpm@osdl.org: cleanups, comments, add __init]
  Cc:
  Signed-off-by: Akinobu Mita
  Signed-off-by: Don Mullis
  Signed-off-by: Andrew Morton
  Signed-off-by: Linus Torvalds

  Akinobu Mita

  2006-12-09 00:29:02 +0800