Messages in this thread | | | Date | Thu, 26 May 2005 14:17:05 -0700 | From | Roland McGrath <> | Subject | Re: waitid() fails with EINVAL for SA_RESTART signals |
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Your test works fine on FC4 kernels (which are pretty current), but it does hit the problem on my vanilla build. strace output suggests something is clobbering two registers:
waitid(P_PID, 1740, Sending signal to parent 0xbfc8b198, WEXITED|WSTOPPED|WCONTINUED, NULL) = ? ERESTARTSYS (To be restarted) --- SIGUSR1 (User defined signal 1) @ 0 (0) --- --- SIGCHLD (Child exited) @ 0 (0) --- write(1, "Caught signal", 13Caught signal) = 13 write(1, "\n", 1 ) = 1 sigreturn() = ? (mask now []) waitid(0x6cc /* P_??? */, 14, 0xbfc8b198, 0, NULL) = -1 EINVAL (Invalid argument)
I will look into it further.
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