Re: [REGRESSION] 6.6.10+ and 6.7+ kernels lock up early in init.

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On 23.01.24 05:40, Paul Thompson wrote:
> 
> 	With my longstanding configuration, kernels upto 6.6.9 work fine.
> Kernels 6.6.1[0123] and 6.7.[01] all lock up in early (open-rc) init,
> before even the virtual filesystems are mounted.
> 
> 	The last thing visible on the console is the nfsclient service
> being started and:
> 
> Call to flock failed: Funtion not implemented. (twice)
> 
> 	Then the machine is unresponsive, numlock doesnt toggle the keyboard led,
> and the alt-sysrq chords appear to do nothing.
> 
> 	The problem is solved by changing my 6.6.9 config option:
> 
> # CONFIG_FILE_LOCKING is not set
> to
> CONFIG_FILE_LOCKING=y
> 
> (This option is under File Systems > Enable POSIX file locking API)
> 
> 	I do not recall why I unset that, but it was working for I think the
> entire 6.6 series until 6.6.10. Anyway thought I would mention it in case
> anyone else hits it.

Thx for the report.

CCing a few people to let them known about this. Among them Jeff, who
had a few fs patches that were backported to 6.6.10 (at the end of
the list below).

FWIW, in case anyone wonders what went into that stable release, here
is a slightly trimmed down list:

$ git log v6.6.9..v6.6.10 --oneline  | grep -v -e wifi -e ftrace -e kexec -e ksmb -e 'platform/'  -e tracing: -e netfilter: -e mptcp
c9a51ebb4bac69 Linux 6.6.10
baa88944038bbe ring-buffer: Fix wake ups when buffer_percent is set to 100
c62b9a2daf2866 Revert "nvme-fc: fix race between error recovery and creating association"
d16c5d215b53b3 mm/memory-failure: check the mapcount of the precise page
8c7da70d9ae4c1 mm/memory-failure: cast index to loff_t before shifting it
07550b1461d4d0 mm: migrate high-order folios in swap cache correctly
d16eb52c176ccf mm/filemap: avoid buffered read/write race to read inconsistent data
09141f08fdf69a selftests: secretmem: floor the memory size to the multiple of page_size
2c30b8b105d690 maple_tree: do not preallocate nodes for slot stores
b5f63f5e8a6820 block: renumber QUEUE_FLAG_HW_WC
183c8972b6a6f8 linux/export: Ensure natural alignment of kcrctab array
466e9af1550724 linux/export: Fix alignment for 64-bit ksymtab entries
28d6cde17f2191 virtio_ring: fix syncs DMA memory with different direction
9a49874443307c fs: cifs: Fix atime update check
23171df51f601c client: convert to new timestamp accessors
5b5599a7eee5e6 fs: new accessor methods for atime and mtime

Ciao, Thorsten




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