On Wed, Dec 2, 2015 at 5:06 PM, Aurelien Jarno <[email protected]> wrote:
> On 2015-12-02 13:45, Domenico Andreoli wrote:
> > Package: libc-bin
> > Version: 2.21-1
> >
> > Hi,
> >
> > I'm unable to open some terminal applications like rxvt and konsole,
> > don't know why but xterm still works.
> >
> > Running rxvt gives this output:
> >
> > $ rxvt
> > rxvt: can't open pseudo-tty
> > rxvt: aborting
> > $ strace rxvt
> > statfs("/dev/pts", {f_type="DEVPTS_SUPER_MAGIC", f_bsize=4096,
> f_blocks=0,
> > f_bfree=0, f_bavail=0, f_files=0, f_ffree=0, f_fsid={0, 0},
> f_namelen=255,
> > f_frsize=4096}) = 0
> > ioctl(4, TCGETS, {B38400 opost isig icanon echo ...}) = 0
> > ioctl(4, TIOCGPTN, [2]) = 0
> > stat("/dev/pts/2", {st_mode=S_IFCHR|0600, st_rdev=makedev(136, 2), ...})
> = 0
> > getuid() = 1000
> > open("/etc/group", O_RDONLY|O_CLOEXEC) = 5
> > lseek(5, 0, SEEK_CUR) = 0
> > fstat(5, {st_mode=S_IFREG|0644, st_size=624, ...}) = 0
> > mmap(NULL, 624, PROT_READ, MAP_SHARED, 5, 0) = 0x7f02d0366000
> > lseek(5, 624, SEEK_SET) = 624
> > munmap(0x7f02d0366000, 624) = 0
> > close(5) = 0
> > chown("/dev/pts/2", 1000, 5) = -1 EPERM (Operation not
> permitted)
> > close(4) = 0
> > open("/dev/pty??", O_RDWR|O_NOCTTY) = -1 ENOENT (No such file or
> > directory)
> > write(2, "rxvt: ", 6rxvt: ) = 6
> > write(2, "can't open pseudo-tty", 21can't open pseudo-tty) = 21
> > write(2, "\n", 1
> > )
> > $ ls -l /dev/pts/*
> > crw------- 1 cavok cavok 136, 0 Dec 2 2015 /dev/pts/0
> > crw------- 1 cavok cavok 136, 1 Dec 2 12:38 /dev/pts/1
> >
> > Investigating konsole, the issue looks the same: unable to set pts
> > permission.
> >
> > Downgrading libc6 and libc6-i686 to 2.19-22 doesn't help, but downgrading
> > libc-bin actually does the trick.
> >
> > Could you please help here?
>
> This is due to the changes introduced to fix the bug #717544. Your
> system is supposed to have /dev/pts mounted with some options:
>
> devpts on /dev/pts type devpts
> (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
>
> This should be the default and can be modified in /etc/default/devpts.
> It looks like in your case /dev/pts is not mounted or mounted with the
> wrong options. Can you send the output of the following command:
>
> mount | grep devpts
>
$ mount | grep devpts
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,mode=600)
none on /mnt/sid64/dev/pts type devpts (rw,relatime,mode=600)
none on /mnt/sid64/home/chernobyl/dev/pts type devpts (rw,relatime,mode=600)
$ grep devpts /etc/fstab
none /mnt/sid64/dev/pts devpts defaults
0 0
none /mnt/sid64/home/chernobyl/dev/pts devpts defaults
0 0
commenting out TTYGRP in /etc/default/devpts doesn't help.
thanks,
Domenico
