https://github.com/torvalds/linux
Revision 2df7a7d1cd07626dd235ca102830ebfc6c01a09e authored by Sergei Trofimovich on 25 August 2011, 22:59:02 UTC, committed by Linus Torvalds on 25 August 2011, 23:25:33 UTC
The bug was accidentally found by the following program: #include <asm/sysinfo.h> #include <asm/unistd.h> #include <sys/syscall.h> static int setsysinfo(unsigned long op, void *buffer, unsigned long size, int *start, void *arg, unsigned long flag) { return syscall(__NR_osf_setsysinfo, op, buffer, size, start, arg, flag); } int main(int argc, char **argv) { short x[10]; unsigned int buf[2] = { SSIN_UACPROC, UAC_SIGBUS, }; setsysinfo(SSI_NVPAIRS, buf, 1, 0, 0, 0); int *y = (int*) (x+1); *y = 0; return 0; } The program shoud fail on SIGBUS, but didn't. The patch is a second part of userspace flag fix (commit 745dd2405e28 "Alpha: Rearrange thread info flags fixing two regressions"). Deleted outdated out-of-sync 'UAC_SHIFT' (the cause of bug) in favour of 'ALPHA_UAC_SHIFT'. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org> Acked-by: Michael Cree <mcree@orcon.net.nz> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Tip revision: 2df7a7d1cd07626dd235ca102830ebfc6c01a09e authored by Sergei Trofimovich on 25 August 2011, 22:59:02 UTC
alpha: unbreak osf_setsysinfo(SSI_NVPAIRS, [SSIN_UACPROC, UAC_SIGBUS])
alpha: unbreak osf_setsysinfo(SSI_NVPAIRS, [SSIN_UACPROC, UAC_SIGBUS])
Tip revision: 2df7a7d
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check-all.sh | -rw-r--r-- | 434 bytes |
rt-tester.py | -rw-r--r-- | 5.2 KB |
t2-l1-2rt-sameprio.tst | -rw-r--r-- | 1.5 KB |
t2-l1-pi.tst | -rw-r--r-- | 1.2 KB |
t2-l1-signal.tst | -rw-r--r-- | 1.2 KB |
t2-l2-2rt-deadlock.tst | -rw-r--r-- | 1.3 KB |
t3-l1-pi-1rt.tst | -rw-r--r-- | 1.4 KB |
t3-l1-pi-2rt.tst | -rw-r--r-- | 1.4 KB |
t3-l1-pi-3rt.tst | -rw-r--r-- | 1.4 KB |
t3-l1-pi-signal.tst | -rw-r--r-- | 1.5 KB |
t3-l1-pi-steal.tst | -rw-r--r-- | 1.6 KB |
t3-l2-pi.tst | -rw-r--r-- | 1.4 KB |
t4-l2-pi-deboost.tst | -rw-r--r-- | 2.0 KB |
t5-l4-pi-boost-deboost-setsched.tst | -rw-r--r-- | 2.9 KB |
t5-l4-pi-boost-deboost.tst | -rw-r--r-- | 2.2 KB |
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