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2015-10-22Linux 3.4.110v3.4.110Zefan Li
2015-09-18Linux 3.4.109v3.4.109Zefan Li
2015-06-19Linux 3.4.108v3.4.108Zefan Li
2015-04-14Linux 3.4.107v3.4.107Zefan Li
2015-02-02Linux 3.4.106v3.4.106Zefan Li
2014-12-01Linux 3.4.105v3.4.105Zefan Li
2014-09-25Linux 3.4.104v3.4.104Zefan Li
2014-08-14Linux 3.4.103v3.4.103Greg Kroah-Hartman
2014-08-07Linux 3.4.102v3.4.102Greg Kroah-Hartman
2014-07-31Linux 3.4.101v3.4.101Greg Kroah-Hartman
2014-07-31Fix gcc-4.9.0 miscompilation of load_balance() in schedulerLinus Torvalds
commit 2062afb4f804afef61cbe62a30cac9a46e58e067 upstream. Michel Dänzer and a couple of other people reported inexplicable random oopses in the scheduler, and the cause turns out to be gcc mis-compiling the load_balance() function when debugging is enabled. The gcc bug apparently goes back to gcc-4.5, but slight optimization changes means that it now showed up as a problem in 4.9.0 and 4.9.1. The instruction scheduling problem causes gcc to schedule a spill operation to before the stack frame has been created, which in turn can corrupt the spilled value if an interrupt comes in. There may be other effects of this bug too, but that's the code generation problem seen in Michel's case. This is fixed in current gcc HEAD, but the workaround as suggested by Markus Trippelsdorf is pretty simple: use -fno-var-tracking-assignments when compiling the kernel, which disables the gcc code that causes the problem. This can result in slightly worse debug information for variable accesses, but that is infinitely preferable to actual code generation problems. Doing this unconditionally (not just for CONFIG_DEBUG_INFO) also allows non-debug builds to verify that the debug build would be identical: we can do export GCC_COMPARE_DEBUG=1 to make gcc internally verify that the result of the build is independent of the "-g" flag (it will make the compiler build everything twice, toggling the debug flag, and compare the results). Without the "-fno-var-tracking-assignments" option, the build would fail (even with 4.8.3 that didn't show the actual stack frame bug) with a gcc compare failure. See also gcc bugzilla: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61801 Reported-by: Michel Dänzer <michel@daenzer.net> Suggested-by: Markus Trippelsdorf <markus@trippelsdorf.de> Cc: Jakub Jelinek <jakub@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-07-28Linux 3.4.100v3.4.100Greg Kroah-Hartman
2014-07-17Linux 3.4.99v3.4.99Greg Kroah-Hartman
2014-07-09Linux 3.4.98v3.4.98Greg Kroah-Hartman
2014-07-06Linux 3.4.97v3.4.97Greg Kroah-Hartman
2014-06-30Linux 3.4.96v3.4.96Greg Kroah-Hartman
2014-06-26Linux 3.4.95v3.4.95Greg Kroah-Hartman
2014-06-16Linux 3.4.94v3.4.94Greg Kroah-Hartman
2014-06-11Linux 3.4.93v3.4.93Greg Kroah-Hartman
2014-06-07Linux 3.4.92v3.4.92Greg Kroah-Hartman
2014-05-18Linux 3.4.91v3.4.91Greg Kroah-Hartman
2014-05-13Linux 3.4.90v3.4.90Greg Kroah-Hartman
2014-05-06Linux 3.4.89v3.4.89Greg Kroah-Hartman
2014-04-26Linux 3.4.88v3.4.88Greg Kroah-Hartman
2014-04-14Linux 3.4.87v3.4.87Greg Kroah-Hartman
2014-04-03Linux 3.4.86v3.4.86Greg Kroah-Hartman
2014-03-30Linux 3.4.85v3.4.85Greg Kroah-Hartman
2014-03-23Linux 3.4.84v3.4.84Greg Kroah-Hartman
2014-03-11Linux 3.4.83v3.4.83Greg Kroah-Hartman
2014-02-22Linux 3.4.82v3.4.82Greg Kroah-Hartman
2014-02-20Linux 3.4.81v3.4.81Greg Kroah-Hartman
2014-02-13Linux 3.4.80v3.4.80Greg Kroah-Hartman
2014-02-06Linux 3.4.79v3.4.79Greg Kroah-Hartman
2014-01-29Linux 3.4.78v3.4.78Greg Kroah-Hartman
2014-01-15Linux 3.4.77v3.4.77Greg Kroah-Hartman
2014-01-08Linux 3.4.76v3.4.76Greg Kroah-Hartman
2013-12-20Linux 3.4.75v3.4.75Greg Kroah-Hartman
2013-12-11Linux 3.4.74v3.4.74Greg Kroah-Hartman
2013-12-08Linux 3.4.73v3.4.73Greg Kroah-Hartman
2013-12-04Linux 3.4.72v3.4.72Greg Kroah-Hartman
2013-11-29Linux 3.4.71v3.4.71Greg Kroah-Hartman
2013-11-20Linux 3.4.70v3.4.70Greg Kroah-Hartman
2013-11-13Linux 3.4.69v3.4.69Greg Kroah-Hartman
2013-11-04Linux 3.4.68v3.4.68Greg Kroah-Hartman
2013-10-22Linux 3.4.67v3.4.67Greg Kroah-Hartman
2013-10-13Linux 3.4.66v3.4.66Greg Kroah-Hartman
2013-10-05Linux 3.4.65v3.4.65Greg Kroah-Hartman
2013-10-01Linux 3.4.64v3.4.64Greg Kroah-Hartman
2013-09-26Linux 3.4.63v3.4.63Greg Kroah-Hartman
2013-09-14Linux 3.4.62v3.4.62Greg Kroah-Hartman
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