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Groups > linux.debian.kernel > #90023

Bug#1120598: ls input/output error ("NFS: readdir(/) returns -5") on krb5 NFSv4 client using SHA2

From "Tyler W. Ross" <TWR@tylerwross.com>
Newsgroups linux.debian.bugs.dist, linux.kernel, linux.debian.kernel
Subject Bug#1120598: ls input/output error ("NFS: readdir(/) returns -5") on krb5 NFSv4 client using SHA2
Date 2025-11-14 06:20 +0100
Message-ID <LQUo1-cPF1-3@gated-at.bofh.it> (permalink)
References (7 earlier) <LQTLj-cP9F-7@gated-at.bofh.it> <LQTLj-cP9F-9@gated-at.bofh.it> <LQTLj-cP9F-1@gated-at.bofh.it> <LQqSZ-cvae-3@gated-at.bofh.it> <LQTLj-cP9F-1@gated-at.bofh.it>
Organization linux.* mail to news gateway

Cross-posted to 3 groups.

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On Thursday, November 13th, 2025 at 9:35 PM, Tyler W. Ross <TWR@tylerwross.com> wrote:

> I tried a couple vanilla/stock kernels today, without success.
> 
> Most notably, I built 6.17.8 from upstream using the Kconfig from the
> working Fedora 43 client in my lab ("config-6.17.5-300.fc43.x86_64").
> 
> Unfortunately, the rpc_xdr_overflow still occurs with this kernel.

Quick addendum:

I had not tried Debian 12, because CONFIG_RPCSEC_GSS_KRB5_ENCTYPES_AES_SHA2
was not enabled in the shipped Kconfig.

I just spun up a Debian 12 VM and installed the aforementioned
upstream 6.17.8 with Fedora 43 Kconfig kernel and confirmed the issue
also occurs on Debian 12.


TWR

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Bug#1120598: nfs-common: ls input/output error ("NFS: readdir(/) returns -5") on krb5 NFSv4 client using SHA2 "Tyler W. Ross" <twr+debbugs@tylerwross.com> - 2025-11-12 22:50 +0100
  Bug#1120598: ls input/output error ("NFS: readdir(/) returns -5") on krb5 NFSv4 client using SHA2 Salvatore Bonaccorso <carnil@debian.org> - 2025-11-13 06:10 +0100
  Bug#1120598: ls input/output error ("NFS: readdir(/) returns -5") on krb5 NFSv4 client using SHA2 "Tyler W. Ross" <TWR@tylerwross.com> - 2025-11-13 18:20 +0100
  Bug#1120598: ls input/output error ("NFS: readdir(/) returns -5") on krb5 NFSv4 client using SHA2 "Tyler W. Ross" <TWR@tylerwross.com> - 2025-11-13 19:10 +0100
  Bug#1120598: ls input/output error ("NFS: readdir(/) returns -5") on krb5 NFSv4 client using SHA2 "Tyler W. Ross" <TWR@tylerwross.com> - 2025-11-13 20:00 +0100
  Bug#1120598: ls input/output error ("NFS: readdir(/) returns -5") on krb5 NFSv4 client using SHA2 "Tyler W. Ross" <TWR@tylerwross.com> - 2025-11-14 05:40 +0100
    Bug#1120598: ls input/output error ("NFS: readdir(/) returns -5") on krb5 NFSv4 client using SHA2 "Tyler W. Ross" <TWR@tylerwross.com> - 2025-11-14 06:20 +0100
  Bug#1120598: ls input/output error ("NFS: readdir(/) returns -5") on krb5 NFSv4 client using SHA2 "Tyler W. Ross" <TWR@tylerwross.com> - 2025-11-16 01:50 +0100
  Bug#1120598: ls input/output error ("NFS: readdir(/) returns -5") on krb5 NFSv4 client using SHA2 Trond Myklebust <trondmy@kernel.org> - 2025-11-16 19:30 +0100
    Bug#1120598: ls input/output error ("NFS: readdir(/) returns -5") on krb5 NFSv4 client using SHA2 "Tyler W. Ross" <TWR@tylerwross.com> - 2025-11-17 06:30 +0100
      Bug#1120598: ls input/output error ("NFS: readdir(/) returns -5") on krb5 NFSv4 client using SHA2 Scott Mayhew <smayhew@redhat.com> - 2025-11-18 00:10 +0100
    Bug#1120598: ls input/output error ("NFS: readdir(/) returns -5") on krb5 NFSv4 client using SHA2 Scott Mayhew <smayhew@redhat.com> - 2025-11-18 00:10 +0100
      Bug#1120598: ls input/output error ("NFS: readdir(/) returns -5") on krb5 NFSv4 client using SHA2 "Tyler W. Ross" <TWR@tylerwross.com> - 2025-11-18 05:20 +0100
        Bug#1120598: ls input/output error ("NFS: readdir(/) returns -5") on krb5 NFSv4 client using SHA2 Scott Mayhew <smayhew@redhat.com> - 2025-11-18 19:00 +0100
          Bug#1120598: ls input/output error ("NFS: readdir(/) returns -5") on krb5 NFSv4 client using SHA2 "Tyler W. Ross" <TWR@tylerwross.com> - 2025-11-19 00:50 +0100
  Bug#1120598: ls input/output error ("NFS: readdir(/) returns -5") on krb5 NFSv4 client using SHA2 "Tyler W. Ross" <TWR@tylerwross.com> - 2025-11-17 19:50 +0100
  Bug#1120598: ls input/output error ("NFS: readdir(/) returns -5") on krb5 NFSv4 client using SHA2 "Tyler W. Ross" <TWR@tylerwross.com> - 2025-11-18 05:40 +0100
  Bug#1120598: ls input/output error ("NFS: readdir(/) returns -5") on krb5 NFSv4 client using SHA2 Scott Mayhew <smayhew@redhat.com> - 2025-11-19 14:40 +0100
  Bug#1120598: ls input/output error ("NFS: readdir(/) returns -5") on krb5 NFSv4 client using SHA2 "Tyler W. Ross" <TWR@tylerwross.com> - 2025-11-19 18:30 +0100
  Bug#1120598: marked as done (nfs: ls input/output error ("NFS:  readdir(/) returns -5") on krb5 NFSv4 client using SHA2) "Debian Bug Tracking System" <owner@bugs.debian.org> - 2026-03-09 22:10 +0100

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