[Bug 2031909] Re: tinydns: allocation failures with glibc 2.38/s390x

[Florian Weimer]

I think Adam Jackson found the root cause in glibc:

[PATCH] libio: Fix oversized __io_vtables
<https://inbox.sourceware.org/libc-alpha/20230907193828.126271-1-ajax@redhat.com/T/#u>

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Title:
  tinydns: allocation failures with glibc 2.38/s390x

Status in djbdns package in Ubuntu:
  Fix Released
Status in glibc package in Ubuntu:
  Triaged
Status in djbdns package in Debian:
  New

Bug description:
  When using glibc 2.38, in some conditions tinydns fails with the
  following error:

  /usr/sbin/tinydns: error while loading shared libraries: libc.so.6:
  cannot map zero-fill pages

  This error shows up at least on the s390x autopkgtests for djbdns.

  This is blocking the glibc transition.

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