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authorRandy Dunlap <rdunlap@xenotime.net>2005-09-13 04:25:46 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2005-09-13 11:22:32 -0400
commit1cc5753f86589c5fb7e2f4a1fe778db3881f8f72 (patch)
tree18267594334a26f94726f1cd7bf2f9fe6dd1094a /Documentation
parent438e5c5e2dae30359b53514a02f5827fb6e552c7 (diff)
[PATCH] Doc: update oops-tracing.txt (Tainted flags)
Update Documentation/oops-tracing.txt: - add descriptions of 3 more "Tainted" flags; - fix some typos; Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/oops-tracing.txt25
1 files changed, 17 insertions, 8 deletions
diff --git a/Documentation/oops-tracing.txt b/Documentation/oops-tracing.txt
index da711028e5f7..66eaaab7773d 100644
--- a/Documentation/oops-tracing.txt
+++ b/Documentation/oops-tracing.txt
@@ -205,8 +205,8 @@ Phone: 701-234-7556
205Tainted kernels: 205Tainted kernels:
206 206
207Some oops reports contain the string 'Tainted: ' after the program 207Some oops reports contain the string 'Tainted: ' after the program
208counter, this indicates that the kernel has been tainted by some 208counter. This indicates that the kernel has been tainted by some
209mechanism. The string is followed by a series of position sensitive 209mechanism. The string is followed by a series of position-sensitive
210characters, each representing a particular tainted value. 210characters, each representing a particular tainted value.
211 211
212 1: 'G' if all modules loaded have a GPL or compatible license, 'P' if 212 1: 'G' if all modules loaded have a GPL or compatible license, 'P' if
@@ -214,16 +214,25 @@ characters, each representing a particular tainted value.
214 MODULE_LICENSE or with a MODULE_LICENSE that is not recognised by 214 MODULE_LICENSE or with a MODULE_LICENSE that is not recognised by
215 insmod as GPL compatible are assumed to be proprietary. 215 insmod as GPL compatible are assumed to be proprietary.
216 216
217 2: 'F' if any module was force loaded by insmod -f, ' ' if all 217 2: 'F' if any module was force loaded by "insmod -f", ' ' if all
218 modules were loaded normally. 218 modules were loaded normally.
219 219
220 3: 'S' if the oops occurred on an SMP kernel running on hardware that 220 3: 'S' if the oops occurred on an SMP kernel running on hardware that
221 hasn't been certified as safe to run multiprocessor. 221 hasn't been certified as safe to run multiprocessor.
222 Currently this occurs only on various Athlons that are not 222 Currently this occurs only on various Athlons that are not
223 SMP capable. 223 SMP capable.
224
225 4: 'R' if a module was force unloaded by "rmmod -f", ' ' if all
226 modules were unloaded normally.
227
228 5: 'M' if any processor has reported a Machine Check Exception,
229 ' ' if no Machine Check Exceptions have occurred.
230
231 6: 'B' if a page-release function has found a bad page reference or
232 some unexpected page flags.
224 233
225The primary reason for the 'Tainted: ' string is to tell kernel 234The primary reason for the 'Tainted: ' string is to tell kernel
226debuggers if this is a clean kernel or if anything unusual has 235debuggers if this is a clean kernel or if anything unusual has
227occurred. Tainting is permanent, even if an offending module is 236occurred. Tainting is permanent: even if an offending module is
228unloading the tainted value remains to indicate that the kernel is not 237unloaded, the tainted value remains to indicate that the kernel is not
229trustworthy. 238trustworthy.