Created attachment 878341 [details]
coredump file
nscd crashes very frequently whe the `/etc/nsswitch.conf` contains the
following line:
> hosts: files libvirt libvirt_guest mdns_minimal [NOTFOUND=return] DNS
System details:
> $ screenfetch -n -d '-host'
> OS: openSUSE 20241031
> Kernel: x86_64 Linux 6.11.5-1-default
> Uptime: 25m
> Packages: 3892
> Shell: bash 5.2.37
> Resolution: 5040x1920
> DE: GNOME 47.1.1
> WM: Mutter
> WM Theme: Dracula
> GTK Theme: Adwaita [GTK2/3]
> Icon Theme: Adwaita
> Font: Cantarell 11
> Disk: 1.5T / 2.0T (78%)
> CPU: Intel Core i7-10850H @ 12x 5.1GHz [57.0°C]
> GPU: Mesa Intel(R) UHD Graphics (CML GT2)
> RAM: 7761MiB / 64043MiB
> $ rpm -qa libvirt-*
> libvirt-daemon-driver-nodedev-10.8.0-2.1.x86_64
> libvirt-daemon-driver-storage-core-10.8.0-2.1.x86_64
> libvirt-daemon-lock-10.8.0-2.1.x86_64
> libvirt-daemon-log-10.8.0-2.1.x86_64
> libvirt-glib-1_0-0-5.0.0-2.1.x86_64
> libvirt-nss-10.8.0-2.1.x86_64
> libvirt-libs-10.8.0-2.1.x86_64
> libvirt-daemon-driver-storage-rbd-10.8.0-2.1.x86_64
> libvirt-daemon-driver-storage-iscsi-direct-10.8.0-2.1.x86_64
> libvirt-daemon-driver-storage-mpath-10.8.0-2.1.x86_64
> libvirt-client-10.8.0-2.1.x86_64
> libvirt-daemon-proxy-10.8.0-2.1.x86_64
> libvirt-daemon-driver-storage-logical-10.8.0-2.1.x86_64
> libvirt-daemon-driver-secret-10.8.0-2.1.x86_64
> libvirt-daemon-common-10.8.0-2.1.x86_64
> libvirt-daemon-driver-storage-scsi-10.8.0-2.1.x86_64
> libvirt-daemon-10.8.0-2.1.x86_64
> libvirt-daemon-config-network-10.8.0-2.1.x86_64
> libvirt-daemon-driver-storage-iscsi-10.8.0-2.1.x86_64
> libvirt-daemon-driver-storage-disk-10.8.0-2.1.x86_64
> libvirt-daemon-qemu-10.8.0-2.1.x86_64
> libvirt-daemon-driver-qemu-10.8.0-2.1.x86_64
> libvirt-daemon-driver-network-10.8.0-2.1.x86_64
> libvirt-daemon-plugin-lockd-10.8.0-2.1.x86_64
> libvirt-daemon-driver-nwfilter-10.8.0-2.1.x86_64
> libvirt-daemon-driver-storage-10.8.0-2.1.x86_64
> $ rpm -qi glibc
> Name : glibc
> Version : 2.40
> Release : 2.1
> Architecture: x86_64
> Install Date: Tue 15 Oct 2024 11:57:27 PM IST
> Group : System/Libraries
> Size : 7096270
> License : GPL-2.0-or-later AND LGPL-2.1-or-later AND LGPL-2.1-or-later WITH GCC-exception-2.0
> Signature : RSA/SHA512, Thu 03 Oct 2024 01:15:51 AM IST, Key ID 35a2f86e29b700a4
> Source RPM : glibc-2.40-2.1.src.rpm
> Build Date : Tue 01 Oct 2024 02:26:18 AM IST
> Build Host : reproducible
> Packager : https://bugs.opensuse.org
> Vendor : openSUSE
> URL : https://www.gnu.org/software/libc/libc.html
> Summary : Standard Shared Libraries (from the GNU C Library)
> Description :
> The GNU C Library provides the most important standard libraries used
> by nearly all programs: the standard C library, the standard math
> library, and the POSIX thread library. A system is not functional
> without these libraries.
> Distribution: openSUSE Tumbleweed
> $ rpm -qi libvirt-nss
> Name : libvirt-nss
> Version : 10.8.0
> Release : 2.1
> Architecture: x86_64
> Install Date: Sat 02 Nov 2024 03:35:30 PM IST
> Group : Unspecified
> Size : 44992
> License : LGPL-2.1-or-later
> Signature : RSA/SHA512, Thu 24 Oct 2024 12:50:49 AM IST, Key ID 35a2f86e29b700a4
> Source RPM : libvirt-10.8.0-2.1.src.rpm
> Build Date : Tue 22 Oct 2024 09:29:15 PM IST
> Build Host : reproducible
> Packager : https://bugs.opensuse.org
> Vendor : openSUSE
> URL : https://libvirt.org/
> Summary : Libvirt plugin for Name Service Switch
> Description :
> libvirt plugin for NSS for translating domain names into IP addresses.
> Distribution: openSUSE Tumbleweed
> $ rpm -qfi /lib64/libjson-c.so.5
> Name : libjson-c5
> Version : 0.17
> Release : 2.3
> Architecture: x86_64
> Install Date: Tue Apr 2 08:59:48 2024
> Group : System/Libraries
> Size : 74263
> License : MIT
> Signature : RSA/SHA512, Fri Mar 29 19:03:54 2024, Key ID 35a2f86e29b700a4
> Source RPM : json-c-0.17-2.3.src.rpm
> Build Date : Wed Dec 6 20:56:31 2023
> Build Host : reproducible
> Packager : https://bugs.opensuse.org
> Vendor : openSUSE
> URL : https://github.com/json-c/json-c
> Summary : JSON-C shared library
> Description :
> JSON-C implements a reference counting object model that allows you to
> easily construct JSON objects in C, output them as JSON formatted
> strings and parse JSON formatted strings back into the C
> representation of JSON objects.
>
> This package includes the JSON library.
> Distribution: openSUSE Tumbleweed
The full output of the `coredumpctl info 6029` is mentioned below. I am also
attaching the zst file for your reference.
> $ coredumpctl info 6029
> PID: 6029 (nscd)
> UID: 471 (nscd)
> GID: 471 (nscd)
> Signal: 11 (SEGV)
> Timestamp: Sat 2024-11-02 15:23:09 IST (18min ago)
> Command Line: /usr/sbin/nscd
> Executable: /usr/sbin/nscd
> Control Group: /system.slice/nscd.service
> Unit: nscd.service
> Slice: system.slice
> Boot ID: c7dca555cfe14e869c5e40761982b36b
> Machine ID: d8e3bf9576304874a24b06e33799a8e5
> Hostname: srinidhi
> Storage: /var/lib/systemd/coredump/core.nscd.471.c7dca555cfe14e869c5e40761982b36b.6029.1730541189000000.zst (inaccessible)
> Message: Process 6029 (nscd) of user 471 dumped core.
>
> Stack trace of thread 6038:
> #0 0x00007f8fb20274c9 json_tokener_free (libjson-c.so.5 + 0xb4c9)
> #1 0x00007f8fb2017c70 n/a (libnss_libvirt_guest.so.2 + 0x2c70)
> #2 0x00007f8fb2017e48 n/a (libnss_libvirt_guest.so.2 + 0x2e48)
> #3 0x00007f8fb2018571 _nss_libvirt_guest_gethostbyname4_r (libnss_libvirt_guest.so.2 + 0x3571)
> #4 0x0000555713ab14c9 n/a (nscd + 0x154c9)
> #5 0x0000555713ab25a2 n/a (nscd + 0x165a2)
> #6 0x0000555713aa6424 n/a (nscd + 0xa424)
> #7 0x00007f8fb1e983b2 start_thread (libc.so.6 + 0x983b2)
> #8 0x00007f8fb1f1d5fc __clone3 (libc.so.6 + 0x11d5fc)
>
> Stack trace of thread 6033:
> #0 0x00007f8fb1e946be __futex_abstimed_wait_common (libc.so.6 + 0x946be)
> #1 0x00007f8fb1e97845 pthread_cond_timedwait@@GLIBC_2.3.2 (libc.so.6 + 0x97845)
> #2 0x0000555713aa3cd2 n/a (nscd + 0x7cd2)
> #3 0x00007f8fb1e983b2 start_thread (libc.so.6 + 0x983b2)
> #4 0x00007f8fb1f1d5fc __clone3 (libc.so.6 + 0x11d5fc)
>
> Stack trace of thread 6031:
> #0 0x00007f8fb1e946be __futex_abstimed_wait_common (libc.so.6 + 0x946be)
> #1 0x00007f8fb1e97845 pthread_cond_timedwait@@GLIBC_2.3.2 (libc.so.6 + 0x97845)
> #2 0x0000555713aa3cd2 n/a (nscd + 0x7cd2)
> #3 0x00007f8fb1e983b2 start_thread (libc.so.6 + 0x983b2)
> #4 0x00007f8fb1f1d5fc __clone3 (libc.so.6 + 0x11d5fc)
>
> Stack trace of thread 6029:
> #0 0x00007f8fb1f1da76 epoll_wait (libc.so.6 + 0x11da76)
> #1 0x0000555713aa6e0e n/a (nscd + 0xae0e)
> #2 0x0000555713aa78b8 n/a (nscd + 0xb8b8)
> #3 0x0000555713aa2a9f n/a (nscd + 0x6a9f)
> #4 0x00007f8fb1e2a2ae __libc_start_call_main (libc.so.6 + 0x2a2ae)
> #5 0x00007f8fb1e2a379 __libc_start_main@@GLIBC_2.34 (libc.so.6 + 0x2a379)
> #6 0x0000555713aa2f25 n/a (nscd + 0x6f25)
>
> Stack trace of thread 6032:
> #0 0x00007f8fb1e946be __futex_abstimed_wait_common (libc.so.6 + 0x946be)
> #1 0x00007f8fb1e97845 pthread_cond_timedwait@@GLIBC_2.3.2 (libc.so.6 + 0x97845)
> #2 0x0000555713aa3cd2 n/a (nscd + 0x7cd2)
> #3 0x00007f8fb1e983b2 start_thread (libc.so.6 + 0x983b2)
> #4 0x00007f8fb1f1d5fc __clone3 (libc.so.6 + 0x11d5fc)
>
> Stack trace of thread 6036:
> #0 0x00007f8fb1e946be __futex_abstimed_wait_common (libc.so.6 + 0x946be)
> #1 0x00007f8fb1e97520 pthread_cond_wait@@GLIBC_2.3.2 (libc.so.6 + 0x97520)
> #2 0x0000555713aa5aeb n/a (nscd + 0x9aeb)
> #3 0x00007f8fb1e983b2 start_thread (libc.so.6 + 0x983b2)
> #4 0x00007f8fb1f1d5fc __clone3 (libc.so.6 + 0x11d5fc)
>
> Stack trace of thread 6037:
> #0 0x00007f8fb1e946be __futex_abstimed_wait_common (libc.so.6 + 0x946be)
> #1 0x00007f8fb1e97520 pthread_cond_wait@@GLIBC_2.3.2 (libc.so.6 + 0x97520)
> #2 0x0000555713aa5aeb n/a (nscd + 0x9aeb)
> #3 0x00007f8fb1e983b2 start_thread (libc.so.6 + 0x983b2)
> #4 0x00007f8fb1f1d5fc __clone3 (libc.so.6 + 0x11d5fc)
>
> Stack trace of thread 6039:
> #0 0x00007f8fb1e946be __futex_abstimed_wait_common (libc.so.6 + 0x946be)
> #1 0x00007f8fb1e97520 pthread_cond_wait@@GLIBC_2.3.2 (libc.so.6 + 0x97520)
> #2 0x0000555713aa5aeb n/a (nscd + 0x9aeb)
> #3 0x00007f8fb1e983b2 start_thread (libc.so.6 + 0x983b2)
> #4 0x00007f8fb1f1d5fc __clone3 (libc.so.6 + 0x11d5fc)
>
> Stack trace of thread 6040:
> #0 0x00007f8fb1e946be __futex_abstimed_wait_common (libc.so.6 + 0x946be)
> #1 0x00007f8fb1e97520 pthread_cond_wait@@GLIBC_2.3.2 (libc.so.6 + 0x97520)
> #2 0x0000555713aa5aeb n/a (nscd + 0x9aeb)
> #3 0x00007f8fb1e983b2 start_thread (libc.so.6 + 0x983b2)
> #4 0x00007f8fb1f1d5fc __clone3 (libc.so.6 + 0x11d5fc)
>
> Stack trace of thread 6034:
> #0 0x00007f8fb1e946be __futex_abstimed_wait_common (libc.so.6 + 0x946be)
> #1 0x00007f8fb1e97845 pthread_cond_timedwait@@GLIBC_2.3.2 (libc.so.6 + 0x97845)
> #2 0x0000555713aa3cd2 n/a (nscd + 0x7cd2)
> #3 0x00007f8fb1e983b2 start_thread (libc.so.6 + 0x983b2)
> #4 0x00007f8fb1f1d5fc __clone3 (libc.so.6 + 0x11d5fc)
>
> Stack trace of thread 6035:
> #0 0x00007f8fb1e946be __futex_abstimed_wait_common (libc.so.6 + 0x946be)
> #1 0x00007f8fb1e97845 pthread_cond_timedwait@@GLIBC_2.3.2 (libc.so.6 + 0x97845)
> #2 0x0000555713aa3cd2 n/a (nscd + 0x7cd2)
> #3 0x00007f8fb1e983b2 start_thread (libc.so.6 + 0x983b2)
> #4 0x00007f8fb1f1d5fc __clone3 (libc.so.6 + 0x11d5fc)
> ELF object binary architecture: AMD x86-64