[parisc-linux] Re: pipes

[Alan Modra]

I had another look at the fixincludes problem, and found the following:

14:36:08 write(5, "cd /scsi/tmp\nfile=sys/stat.h\nif ( test  -r types/vxTypesOld.h ) > /dev/null 2>&1\nthen echo TRUE\nelse echo FALSE\nfi\n\necho\necho ShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 158) = 158
14:36:08 alarm(10)                      = 0
14:36:08 read(6, "FALSE\n", 4096)       = 6
14:36:08 alarm(10)                      = 10
14:36:08 read(6, "FALSE\nShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 4096) = -512
14:36:18 --- SIGALRM (Alarm clock) ---
14:36:18 read(6, "FALSE\nShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 4096) = -512
14:36:28 --- SIGINT (Interrupt) ---
14:36:28 +++ killed by SIGINT +++

fd 5 and 6 are pipes to a /bin/sh.  -512 is ERESTARTSYS.  ERESTARTSYS
shouldn't happen, and is why fixincludes is bombing.

Nothing suspicious in previous rt_sigaction calls as far as I could see,
and putting in a debugging printk in do_sigaction shows sa_flags is being
set correctly, to 0x40.

Ideas?