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3e2bd2e30b
Partly fixes guix/guix#4269.
Fixes a bug whereby shepherd (PID 1) could retain memory mappings for
/var/run/nscd/dbXXX, which are created by glibc’s NSS from database file
descriptors sent by nscd. Those mappings could then prevent
‘root-file-system’ from re-mounting the root file system as read-write.
This change causes PID 1 to drop these mappings.
PID 1 typically calls libc database functions such as ‘getgr’ when dealing
with AF_UNIX endpoints for socket-activated services, to look up the socket’s
owner and group. This is where the bug would manifest.
The regression may have been introduced by
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| .. | ||
| data | ||
| audio.scm | ||
| avahi.scm | ||
| base.scm | ||
| cachefilesd.scm | ||
| ci.scm | ||
| containers.scm | ||
| cups.scm | ||
| databases.scm | ||
| desktop.scm | ||
| dict.scm | ||
| dns.scm | ||
| docker.scm | ||
| emacs.scm | ||
| file-sharing.scm | ||
| foreign.scm | ||
| ganeti.scm | ||
| gdm.scm | ||
| guix.scm | ||
| high-availability.scm | ||
| image.scm | ||
| install.scm | ||
| ldap.scm | ||
| lightdm.scm | ||
| linux-modules.scm | ||
| mail.scm | ||
| mcron.scm | ||
| messaging.scm | ||
| monitoring.scm | ||
| networking.scm | ||
| nfs.scm | ||
| package-management.scm | ||
| pam.scm | ||
| reconfigure.scm | ||
| rsync.scm | ||
| samba.scm | ||
| sddm.scm | ||
| security-token.scm | ||
| security.scm | ||
| shadow.scm | ||
| singularity.scm | ||
| ssh.scm | ||
| telephony.scm | ||
| upnp.scm | ||
| version-control.scm | ||
| virtualization.scm | ||
| vnc.scm | ||
| vnstat.scm | ||
| web.scm | ||