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The NPTL limitation that only the main thread could call 

setsid() and setpgid() was removed in 2.6.16.
This commit is contained in:
Michael Kerrisk 2006-03-05 09:00:21 +00:00
parent e91fec0909
commit 2e17464853
1 changed files with 9 additions and 14 deletions
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23
man7/pthreads.7
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@ -249,20 +249,6 @@ are copied from the the thread that created it, so that
the threads initially share an alternate signal stack.
.IP \- 3
Threads do not share a common nice value.
.IP \- 3
Only the main thread is permitted to start a new session using
.BR setsid (2).
.\" FIXME why is only the main thread permitted to
.\" start a new session using setsid()?
.\" Perhaps fixed in 2.6.16?
.\"
.IP \- 3
Only the main thread is permitted to make the process into a
process group leader using
.BR setpgid (2).
.\" FIXME why is only the main thread permitted to make the
.\" process into a process group leader using setpgid()?
.\" Perhaps fixed in 2.6.16?
.PP
Some NPTL non-conformances only occur with older kernels:
.IP \- 3
@ -275,6 +261,15 @@ is per-thread rather than process-wide (fixed in kernel 2.6.9).
Threads do not share resource limits (fixed in kernel 2.6.10).
.IP \- 3
Threads do not share interval timers (fixed in kernel 2.6.12).
.IP \- 3
Only the main thread is permitted to start a new session using
.BR setsid (2)
(fixed in kernel 2.6.16).
.IP \- 3
Only the main thread is permitted to make the process into a
process group leader using
.BR setpgid (2)
(fixed in kernel 2.6.16).
.SS "Determining the Threading Implementation"
Since glibc 2.3.2, the
.BR getconf (1)