[Bug 1871543] Re: rtkit fails to start in focal "pthread_create failed: Resource temporarily unavailable"
Out of curiosity I tried to reproduce this on other SBC - NanoPi-M1 which also running Armbian. Interestingly, it's not reproducible on this board. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1871543 Title: rtkit fails to start in focal "pthread_create failed: Resource temporarily unavailable" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/rtkit/+bug/1871543/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1871543] Re: rtkit fails to start in focal "pthread_create failed: Resource temporarily unavailable"
> Do you have other things than the kernel from outside the Ubuntu Archive? Not much, just two packages: uboot bootloader: https://apt.armbian.com/pool/main/l/linux-u-boot-nanopct4-current/linux-u-boot-current-nanopct4_20.02.7_arm64.deb board-specific configs and various tools, such as monitoring tool, installer, etc.: https://apt.armbian.com/pool/main/l/linux-focal-root-current-nanopct4/linux-focal-root-current-nanopct4_20.02.7_arm64.deb (take a peek inside to get idea). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1871543 Title: rtkit fails to start in focal "pthread_create failed: Resource temporarily unavailable" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/rtkit/+bug/1871543/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1871543] Re: rtkit fails to start in focal "pthread_create failed: Resource temporarily unavailable"
I have not seen it again in any environment since then. Interesting that you hit it in such a specific environment. I'd have expected that it might be incompatible components. Do you have other things than the kernel from outside the Ubuntu Archive? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1871543 Title: rtkit fails to start in focal "pthread_create failed: Resource temporarily unavailable" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/rtkit/+bug/1871543/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1871543] Re: rtkit fails to start in focal "pthread_create failed: Resource temporarily unavailable"
I can reliably reproduce this: 1. Inside several aarch64 systemd-machined containers (with PrivateUsers=0 in nspawn conf) with focal and running Gnome Shell session (accessed via TigerVNC server). Hosts in NanoPC-T4. 2. On one bare metal NanoPC-T4 host with focal, running Gnome Shell Wayland session. No container/virtualization stuff, only bare metal. Symptoms looks the same? ~$ sudo /usr/libexec/rtkit-daemon --stderr rtkit-daemon[5786]: Successfully called chroot. rtkit-daemon[5786]: Successfully dropped privileges. rtkit-daemon[5786]: Successfully limited resources. rtkit-daemon[5786]: pthread_create failed: Resource temporarily unavailable rtkit-daemon[5786]: Demoting known real-time threads. rtkit-daemon[5786]: Demoted 0 threads. With --no-drop-privileges it works: ~$ sudo /usr/libexec/rtkit-daemon --stderr --no-drop-privileges rtkit-daemon[5781]: Successfully called chroot. rtkit-daemon[5781]: Successfully limited resources. rtkit-daemon[5781]: Running. rtkit-daemon[5781]: Canary thread running. rtkit-daemon[5781]: Watchdog thread running. However, in both cases I have to use Armbian kernel. For the record, on RPi3B running generic Ubuntu 20.04 aarch64 image (boot via UEFI) this issue is not reproducible. I can help with further debug here, or my issue is different and I have to go to Armbian forum? In the former case what exactly I need to de to help debug this? ** Changed in: rtkit (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1871543 Title: rtkit fails to start in focal "pthread_create failed: Resource temporarily unavailable" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/rtkit/+bug/1871543/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1871543] Re: rtkit fails to start in focal "pthread_create failed: Resource temporarily unavailable"
A full system restart resolved the issue for me, but thereby also removed my chances to debug further. I hope the bug gives others that might hit it as well a head start. For now I'm marking it incomplete ** Changed in: rtkit (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1871543 Title: rtkit fails to start in focal "pthread_create failed: Resource temporarily unavailable" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/rtkit/+bug/1871543/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1871543] Re: rtkit fails to start in focal "pthread_create failed: Resource temporarily unavailable"
I compared e.g. systemd-coredump vs rtkit. Similar user add calls: rtkit has: --disabled-password I recreated it without, and it made no difference. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1871543 Title: rtkit fails to start in focal "pthread_create failed: Resource temporarily unavailable" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/rtkit/+bug/1871543/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1871543] Re: rtkit fails to start in focal "pthread_create failed: Resource temporarily unavailable"
I was playing with different similar users (system user with nologin) $ for u in $(grep nologin /etc/passwd | cut -d':' -f 1); do echo Trying $u; /tmp/rtkit-0.12/rtkit-daemon --stderr --user-name $u; done Working: daemon bin sys games man lp mail news uucp proxy www-data backup list irc gnats nobody dnsmasq cups-pk-helper saned pulse geoclue nm-openvpn nm-openconnect Debian-exim radvd sanlock gluster statd tcpdump systemd-coredump Failing: systemd-network systemd-resolve syslog messagebus _apt uuidd avahi-autoipd usbmux kernoops avahi colord libvirt-qemu libvirt-dnsmasq mpd apt-cacher-ng _rpc systemd-timesync rtkit Now what differentiates those two groups ? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1871543 Title: rtkit fails to start in focal "pthread_create failed: Resource temporarily unavailable" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/rtkit/+bug/1871543/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1871543] Re: rtkit fails to start in focal "pthread_create failed: Resource temporarily unavailable"
$ sudo userdel --remove rtkit $ id rtkit id: ‘rtkit’: no such user $ sudo apt install --reinstall rtkit $ id rtkit uid=109(rtkit) gid=114(rtkit) groups=114(rtkit) The issue does not go away by removing and recreating the user. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1871543 Title: rtkit fails to start in focal "pthread_create failed: Resource temporarily unavailable" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/rtkit/+bug/1871543/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1871543] Re: rtkit fails to start in focal "pthread_create failed: Resource temporarily unavailable"
This would work as well as a workaround: --user-name root setgroups and setresgid are safe, it is the user set via setresuid that makes it fail eventually. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1871543 Title: rtkit fails to start in focal "pthread_create failed: Resource temporarily unavailable" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/rtkit/+bug/1871543/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1871543] Re: rtkit fails to start in focal "pthread_create failed: Resource temporarily unavailable"
Knowing that --no-drop-privileges is related I was breaking that into
sub-sections.
I set -O0 for better debugging.
Then I dropped code of the drop-priv section.
This section is it:
1755 if (setgroups(0, NULL) < 0 ||
1756 setresgid(pw->pw_gid, pw->pw_gid, pw->pw_gid) < 0 ||
1757 setresuid(pw->pw_uid, pw->pw_uid, pw->pw_uid) < 0) {
1758 r = -errno;
1759 syslog(LOG_ERR, "Failed to become %s: %s\n",
username, strerror(errno));
1760 return r;
1761 }
All three work:
__GI_setgroups (n=0, groups=0x0)
__GI___setresgid (rgid=114, egid=114, sgid=114)
__GI___setresuid (ruid=109, euid=109, suid=109)
IDs match:
$ id 109
uid=109(rtkit) gid=114(rtkit) groups=114(rtkit)
So it is actually indeed user-related like
https://bbs.archlinux.org/viewtopic.php?id=230079 was.
I see no difference in the user in my test system vs the failing one.
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rtkit fails to start in focal "pthread_create failed: Resource
temporarily unavailable"
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[Bug 1871543] Re: rtkit fails to start in focal "pthread_create failed: Resource temporarily unavailable"
It is the raw clone call that fails: 101 if (__glibc_unlikely (ARCH_CLONE (&start_thread, STACK_VARIABLES_ARGS, 102 »···»···»···»···clone_flags, pd, &pd->tid, tp, &pd->tid) 103 »···»···»···== -1)) 104 return errno; That returns 11 Limits are the same in good & bad case $ sudo prlimit --pid 1839368 RESOURCE DESCRIPTION SOFT HARD UNITS AS address space limitunlimited unlimited bytes CORE max core file size 0 unlimited bytes CPUCPU time unlimited unlimited seconds DATA max data size unlimited unlimited bytes FSIZE max file size 0 0 bytes LOCKS max number of file locks held unlimited unlimited locks MEMLOCKmax locked-in-memory address space 0 0 bytes MSGQUEUE max bytes in POSIX mqueues 0 0 bytes NICE max nice prio allowed to raise 0 0 NOFILE max number of open files 5050 files NPROC max number of processes3 3 processes RSSmax resident set size unlimited unlimited bytes RTPRIO max real-time priority 0 0 RTTIME timeout for real-time tasks 2020 microsecs SIGPENDING max number of pending signals 127615127615 signals STACK max stack size 8388608 unlimited bytes -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1871543 Title: rtkit fails to start in focal "pthread_create failed: Resource temporarily unavailable" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/rtkit/+bug/1871543/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1871543] Re: rtkit fails to start in focal "pthread_create failed: Resource temporarily unavailable"
Similar: https://superuser.com/questions/1440725/rtkit-fails-to-start-on-reboot => but I have no docker (nor runc/containerd) https://bbs.archlinux.org/viewtopic.php?id=230079 => re-install doesn't help for me (also I have no user issue) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1871543 Title: rtkit fails to start in focal "pthread_create failed: Resource temporarily unavailable" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/rtkit/+bug/1871543/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1871543] Re: rtkit fails to start in focal "pthread_create failed: Resource temporarily unavailable"
Breakpoint 2, start_canary () at rtkit-daemon.c:2300 2300if (start_canary() < 0) (gdb) n 1670if ((canary_fd = eventfd(0, EFD_NONBLOCK|EFD_CLOEXEC)) < 0 || (gdb) 1677if ((r = -pthread_create(&canary_thread_id, NULL, canary_thread, NULL)) < 0 || (gdb) Breakpoint 1, __pthread_create_2_1 (newthread=0x55565178 , attr=0x0, start_routine=0xabd0 , arg=0x0) at pthread_create.c:625 625 pthread_create.c: No such file or directory. (gdb) fin Run till exit from #0 __pthread_create_2_1 (newthread=0x55565178 , attr=0x0, start_routine=0xabd0 , arg=0x0) at pthread_create.c:625 [New Thread 0x77aa3700 (LWP 1795548)] rtkit-daemon[1795542]: Canary thread running. 0x84bf in start_canary () at rtkit-daemon.c:1677 1677if ((r = -pthread_create(&canary_thread_id, NULL, canary_thread, NULL)) < 0 || Value returned is $1 = 0 (gdb) n Thread 1 "rtkit-daemon" hit Breakpoint 1, __pthread_create_2_1 (newthread=0x55565170 , attr=0x0, start_routine=0xa800 , arg=0x0) at pthread_create.c:625 625 pthread_create.c: No such file or directory. (gdb) fin Run till exit from #0 __pthread_create_2_1 (newthread=0x55565170 , attr=0x0, start_routine=0xa800 , arg=0x0) at pthread_create.c:625 0x84de in start_canary () at rtkit-daemon.c:1677 1677if ((r = -pthread_create(&canary_thread_id, NULL, canary_thread, NULL)) < 0 || Value returned is $2 = 11 It doesn't even reach watchdog_thread() it fails to create the thread before that. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1871543 Title: rtkit fails to start in focal "pthread_create failed: Resource temporarily unavailable" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/rtkit/+bug/1871543/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1871543] Re: rtkit fails to start in focal "pthread_create failed: Resource temporarily unavailable"
Thanks Christian for the bug report. I haven't see that issue reported before. The rtkit user is correctly available on your system? Do you have any warning/hint in the journal maybe? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1871543 Title: rtkit fails to start in focal "pthread_create failed: Resource temporarily unavailable" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/rtkit/+bug/1871543/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1871543] Re: rtkit fails to start in focal "pthread_create failed: Resource temporarily unavailable"
The issue is on my workstation which might have all kind of config history. On a fresh focal system it looks like "default off, start works" root@f:~# systemctl status rtkit-daemon ● rtkit-daemon.service - RealtimeKit Scheduling Policy Service Loaded: loaded (/lib/systemd/system/rtkit-daemon.service; disabled; vendor preset: enabled) Active: inactive (dead) root@f:~# systemctl start rtkit-daemon.service root@f:~# systemctl status rtkit-daemon ● rtkit-daemon.service - RealtimeKit Scheduling Policy Service Loaded: loaded (/lib/systemd/system/rtkit-daemon.service; disabled; vendor preset: enabled) Active: active (running) since Wed 2020-04-08 06:12:27 UTC; 1s ago Main PID: 76699 (rtkit-daemon) Tasks: 3 (limit: 38284) Memory: 684.0K CGroup: /system.slice/rtkit-daemon.service └─76699 /usr/libexec/rtkit-daemon Apr 08 06:12:27 f systemd[1]: Starting RealtimeKit Scheduling Policy Service... Apr 08 06:12:27 f systemd[1]: Started RealtimeKit Scheduling Policy Service. Apr 08 06:12:27 f rtkit-daemon[76699]: Successfully called chroot. Apr 08 06:12:27 f rtkit-daemon[76699]: Successfully dropped privileges. Apr 08 06:12:27 f rtkit-daemon[76699]: Successfully limited resources. Apr 08 06:12:27 f rtkit-daemon[76699]: Running. Apr 08 06:12:27 f rtkit-daemon[76699]: Canary thread running. Apr 08 06:12:27 f rtkit-daemon[76699]: Watchdog thread running. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1871543 Title: rtkit fails to start in focal "pthread_create failed: Resource temporarily unavailable" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/rtkit/+bug/1871543/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1871543] Re: rtkit fails to start in focal "pthread_create failed: Resource temporarily unavailable"
Reproducible: $ sudo /usr/libexec/rtkit-daemon --stderr rtkit-daemon[1764664]: Successfully called chroot. rtkit-daemon[1764664]: Successfully dropped privileges. rtkit-daemon[1764664]: Successfully limited resources. rtkit-daemon[1764664]: pthread_create failed: Resource temporarily unavailable rtkit-daemon[1764664]: Canary thread running. rtkit-daemon[1764664]: Exiting canary thread. rtkit-daemon[1764664]: Demoting known real-time threads. rtkit-daemon[1764664]: Demoted 0 threads. It seems I can "fix" it by adding: --no-drop-privileges So does it drop more privs on my system than on those where it works? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1871543 Title: rtkit fails to start in focal "pthread_create failed: Resource temporarily unavailable" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/rtkit/+bug/1871543/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1871543] Re: rtkit fails to start in focal "pthread_create failed: Resource temporarily unavailable"
Start through dbus fails the same way. $ rtkitctl --start -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1871543 Title: rtkit fails to start in focal "pthread_create failed: Resource temporarily unavailable" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/rtkit/+bug/1871543/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
