On Sat, 19 Jun 1999, Sean Doran wrote:

> 
> Has anyone else noticed their umask being set to 022 after an exec() in
> recent kernels?  I see this with the i386 port, and am wondering if it's
> a problem local to me, or if it's simply that nobody's noticed it yet.
> 
> I first started noticing this on 8 June thanks to a "make trip" failure
> in the plan9/rc package, and didn't really chase it down hoping it would
> go away after all the recent memory locking fixes etc were in place.
> 
> I'm willing to accept that it may be a compilation weirdness, since I
> build with -march=i686 -mfancy-math-387 -O3 and have had USE_EGCS_HAIFA=1
> (and, unrelatedly, I387_LIBM?=yes) in my /etc/mk.conf for ages.   On another
> box I use -march=pentium and the other stuff above; it sees the same symptoms.

On my i386 box with kernel compiled only with -O2 optimization the same
symptoms exist.

> 
> Anyway, the symptoms are shown off below.
> 
> Is this PR-worthy?
> 
> 	Sean.
> - --
> $ ls
> $ umask 
> 0022
> $ touch a
> $ ls -l
> total 0
> -rw-r--r--  1 smd  wheel  0 Jun  8 17:35 a
> $ umask 027
> $ touch b
> $ ls -l
> total 0
> -rw-r--r--  1 smd  wheel  0 Jun  8 17:35 a
> -rw-r--r--  1 smd  wheel  0 Jun  8 17:35 b
> $ echo > c
> $ ls -l
> total 1
> -rw-r--r--  1 smd  wheel  0 Jun  8 17:35 a
> -rw-r--r--  1 smd  wheel  0 Jun  8 17:35 b
> -rw-r-----  1 smd  wheel  1 Jun  8 17:35 c
> $ dd if=/dev/null of=e
> 0+0 records in
> 0+0 records out
> 0 bytes transferred in 1 secs (0 bytes/sec)
> $ ls -l
> total 1
> -rw-r--r--  1 smd  wheel  0 Jun  8 17:35 a
> -rw-r--r--  1 smd  wheel  0 Jun  8 17:35 b
> -rw-r-----  1 smd  wheel  1 Jun  8 17:35 c
> -rw-r--r--  1 smd  wheel  0 Jun  8 17:35 e
> $ umask
> 0027
> $ csh
> smd% umask
> 22
> smd% umask 027
> smd% umask
> 27
> smd% csh
> smd% umask
> 22
>