linux-kernel - Re: Linux 6.18-rc1

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Message-ID: <a8e1e739a534051ec8c065cf3e6750c734a0d2e5.camel@kernel.org>
Date: Tue, 14 Oct 2025 07:00:27 -0400
From: Jeff Layton <jlayton@...nel.org>
To: Nathan Chancellor <nathan@...nel.org>, Guenter Roeck <linux@...ck-us.net>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>, Linux Kernel Mailing
 List	 <linux-kernel@...r.kernel.org>, Feng Chen <feng.chen@...ogic.com>,
 Matthew Wilcox <willy@...radead.org>, Michal Swiatkowski
 <michal.swiatkowski@...ux.intel.com>
Subject: Re: Linux 6.18-rc1

On Mon, 2025-10-13 at 22:54 -0700, Nathan Chancellor wrote:
> On Mon, Oct 13, 2025 at 10:08:22AM -0700, Guenter Roeck wrote:
> > Building openrisc:allmodconfig ... failed
> > --------------
> > Error log:
> > In file included from include/linux/cpumask.h:11,
> >                  from include/linux/smp.h:13,
> >                  from include/linux/lockdep.h:14,
> >                  from include/linux/spinlock.h:63,
> >                  from include/linux/mmzone.h:8,
> >                  from include/linux/gfp.h:7,
> >                  from include/linux/slab.h:16,
> >                  from fs/nfsd/nfs4xdr.c:37:
> > fs/nfsd/nfs4xdr.c: In function 'nfsd4_encode_components_esc':
> > include/linux/kernel.h:334:46: error: called object 'strlen' is not a function or function pointer
> > 
> > bisect:
> > 
> > # bad: [3a8660878839faadb4f1a6dd72c3179c1df56787] Linux 6.18-rc1
> > # good: [e5f0a698b34ed76002dc5cff3804a61c80233a7a] Linux 6.17
> > git bisect start 'HEAD' 'v6.17'
> > # good: [58809f614e0e3f4e12b489bddf680bfeb31c0a20] Merge tag 'drm-next-2025-10-01' of https://gitlab.freedesktop.org/drm/kernel
> > git bisect good 58809f614e0e3f4e12b489bddf680bfeb31c0a20
> > # bad: [bed0653fe2aacb0ca8196075cffc9e7062e74927] Merge tag 'iommu-updates-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux
> > git bisect bad bed0653fe2aacb0ca8196075cffc9e7062e74927
> > # good: [be812ace0378a9db86344ad637c5ed2a5d11f216] Bluetooth: Avoid a couple dozen -Wflex-array-member-not-at-end warnings
> > git bisect good be812ace0378a9db86344ad637c5ed2a5d11f216
> > # good: [8804d970fab45726b3c7cd7f240b31122aa94219] Merge tag 'mm-stable-2025-10-01-19-00' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
> > git bisect good 8804d970fab45726b3c7cd7f240b31122aa94219
> > # good: [b3fee71e6673393d04476fbe0f4f03f97765e32d] Merge tag 'v6.18rc1-part1-ksmbd-server-fixes' of git://git.samba.org/ksmbd
> > git bisect good b3fee71e6673393d04476fbe0f4f03f97765e32d
> > # good: [944df7a31452f75bbc15b1e7215e1aacee8cd1b4] docs: update the guidance for Link: tags
> > git bisect good 944df7a31452f75bbc15b1e7215e1aacee8cd1b4
> > # bad: [50647a1176b7abd1b4ae55b491eb2fbbeef89db9] Merge tag 'pull-f_path' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
> > git bisect bad 50647a1176b7abd1b4ae55b491eb2fbbeef89db9
> > # bad: [c817248fc831f5494d076421672b70a6ec1a92dc] nfs/localio: add proper O_DIRECT support for READ and WRITE
> > git bisect bad c817248fc831f5494d076421672b70a6ec1a92dc
> > # bad: [4b7c3b4c673d40e4b98cdaf642495929f43787e6] NFS: Update the flexfilelayout driver to use xdr_set_scratch_folio()
> > git bisect bad 4b7c3b4c673d40e4b98cdaf642495929f43787e6
> > # bad: [bf75ad096820fee5da40e671ebb32de725a1c417] NFSv4.1: fix mount hang after CREATE_SESSION failure
> > git bisect bad bf75ad096820fee5da40e671ebb32de725a1c417
> > # good: [64dd8022245038109826c0e2a778f16618d88600] nfs: cleanup tracepoint declarations
> > git bisect good 64dd8022245038109826c0e2a778f16618d88600
> > # bad: [be390f95242785adbf37d7b8a5101dd2f2ba891b] NFSv4: handle ERR_GRACE on delegation recalls
> > git bisect bad be390f95242785adbf37d7b8a5101dd2f2ba891b
> > # bad: [ec7d8e68ef0ec5c635c8f9e93cd881673445a397] sunrpc: add a Kconfig option to redirect dfprintk() output to trace buffer
> > git bisect bad ec7d8e68ef0ec5c635c8f9e93cd881673445a397
> > # good: [9082aae154be2d9e208b56e249cb886612f7c6cf] sunrpc: remove dfprintk_cont() and dfprintk_rcu_cont()
> > git bisect good 9082aae154be2d9e208b56e249cb886612f7c6cf
> > # first bad commit: [ec7d8e68ef0ec5c635c8f9e93cd881673445a397] sunrpc: add a Kconfig option to redirect dfprintk() output to trace buffer
> > 
> > I did not try to understand why that patch triggers the build failure,
> > but reverting it fixes the problem (not that it is a good idea to have
> > a variable named 'strlen').
> > 
> > Author: Jeff Layton <jlayton@...nel.org>
> 
> I sent a patch for this:
> 
> https://lore.kernel.org/20250930-nfsd-fix-trace-printk-strlen-error-v3-1-536cc9822ee6@kernel.org/
> 
> which Chuck appears to have tenatively applied:
> 
> https://git.kernel.org/cel/c/c710de671789388b3af1046c7091685594ec44d9
> 

Thanks. I believe Chuck is planning to send that patch to Linus in the
next post-rc1 pile of bugfixes.

-- 
Jeff Layton <jlayton@...nel.org>