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March 15, 2015 06:56
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commit 36bef88380037288d5b575ed2029de694533b1ec | |
Merge: e93df63 e6441ba | |
Author: Linus Torvalds <torvalds@linux-foundation.org> | |
Date: Mon Mar 9 18:17:21 2015 -0700 | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net | |
this issue to me and supplied a patch. When I tested this on my x86 | |
test box, it caused thousands of backtraces and warnings to appear in | |
dmesg, which also caused a denial of service (a warning for every | |
function that was listed). I applied Pratyush's patch but it did not | |
fix the issue for me. I looked into it and found a slight problem | |
with trampoline accounting. I fixed it and sent Pratyush a patch, but | |
he said that it did not fix the issue for him. | |
I later learned tha Pratyush was using an ARM64 server, and when I | |
tested on my ARM board, I was able to reproduce the same issue as | |
Pratyush. After applying his patch, it fixed the problem. The above | |
test uncovered two different bugs, one in x86 and one in ARM and | |
ARM64. As this looked like it would affect PowerPC, I tested it on my | |
PPC64 box. It too broke, but neither the patch that fixed ARM or x86 | |
fixed this box (the changes were all in generic code!). The above | |
test, uncovered two more bugs that affected PowerPC. Again, the | |
changes were only done to generic code. It's the way the arch code | |
expected things to be done that was different between the archs. Some | |
where more sensitive than others. | |
The rest of this series fixes the PPC bugs as well" | |
* tag 'trace-fixes-v4.0-rc2-2' of git://git.kernel.org/pub/scm/linux/kernel/git | |
ftrace: Fix ftrace enable ordering of sysctl ftrace_enabled | |
ftrace: Fix en(dis)able graph caller when en(dis)abling record via sysctl | |
ftrace: Clear REGS_EN and TRAMP_EN flags on disabling record via sysctl | |
seq_buf: Fix seq_buf_bprintf() truncation | |
seq_buf: Fix seq_buf_vprintf() truncation |
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