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c824498db4
There's a forum thread at https://blackfin.uclinux.org/gf/project/uclinux-dist/forum/?action=ForumBrowse&_forum_action=MessageReply&message_id=24741 which has a testcase involving signal handling that crashes quite readily. Inspecting the code I believe what happens is that signal handling can become confused when it is invoked on return from an interrupt, if the contents of P0 and R0 at the time of the interrupt happen to be such that P0 is larger than zero (indicating to the signal code that we're in a syscall), and R0 happens to have a value of something like -EINTR or -ERESTARTSYS. Fixed by setting orig_p0 to -1 if we're returning from an interrupt. The testcase now seems to run without problems. Signed-off-by: Bernd Schmidt <bernd.schmidt@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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| .. | ||
| cache.S | ||
| cacheinit.S | ||
| cplbhdlr.S | ||
| cplbinfo.c | ||
| cplbmgr.S | ||
| dpmc.S | ||
| entry.S | ||
| interrupt.S | ||
| ints-priority-dc.c | ||
| ints-priority-sc.c | ||
| irqpanic.c | ||
| lock.S | ||
| Makefile | ||
| pm.c | ||