Re: autofs: add autofs_parse_fd()

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On Fri, Oct 20, 2023 at 11:55:57AM +0200, Anders Roxell wrote:
> On Fri, 20 Oct 2023 at 08:37, Arnd Bergmann <arnd@xxxxxxxx> wrote:
> >
> > On Thu, Oct 19, 2023, at 17:27, Naresh Kamboju wrote:
> > > The qemu-x86_64 and x86_64 booting with 64bit kernel and 32bit rootfs we call
> > > it as compat mode boot testing. Recently it started to failed to get login
> > > prompt.
> > >
> > > We have not seen any kernel crash logs.
> > >
> > > Anders, bisection is pointing to first bad commit,
> > > 546694b8f658 autofs: add autofs_parse_fd()
> > >
> > > Reported-by: Linux Kernel Functional Testing <lkft@xxxxxxxxxx>
> > > Reported-by: Anders Roxell <anders.roxell@xxxxxxxxxx>
> >
> > I tried to find something in that commit that would be different
> > in compat mode, but don't see anything at all -- this appears
> > to be just a simple refactoring of the code, unlike the commits
> > that immediately follow it and that do change the mount
> > interface.
> >
> > Unfortunately this makes it impossible to just revert the commit
> > on top of linux-next. Can you double-check your bisection by
> > testing 546694b8f658 and the commit before it again?
> 
> I tried these two patches again:
> 546694b8f658 ("autofs: add autofs_parse_fd()") - doesn't boot
> bc69fdde0ae1 ("autofs: refactor autofs_prepare_pipe()") - boots
> 

One difference that I notice between those two patches is that we no
long call autofs_prepare_pipe().  We just call autofs_check_pipe().

regards,
dan carpenter




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