Hi Greg and Sasha,
Am 18.10.2026 um 07:54 schrieb Peter Schneider:
Am 17.10.2026 um 17:37 schrieb Greg Kroah-Hartman:
This is the start of the stable review cycle for the 6.6.160 release. There are 1674 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know.
This rc-Kernel crashes with a kernel panic on my 2-socket Ivy Bridge Xeon E5-2697v2 server, when I boot into it. Will bisect the issue, but unfortunately I have no time for this today, because I will be off for playing a chess team match in an hour, and that's about all I'll do today. Will hopefully do the bisect on Monday.
So the kernel crash I encountered on my 2-socket Ivy Bridge Xeon E5-2697v2 server was this one (sorry for the low quality screenshot), within function RIP: 0010:exra_is_visible+0x14/0x20
https://www.peters-netzplatz.de/download/Kernel_Panic_6.6.160-rc1.jpg
I bisected the issue, and this was the first bad commit:
# first bad commit: [7c1e132b0967210526de05e7af6f1c26ad0c1516] sysfs: Introduce a mechanism to hide static attribute_groups
which is upstream commit [d87c295f599cab2ab3b3df53a9098adba4a6002b].
I think the problem is, that if you take this patch for stable, you need to also take the patch which is upstream [ cd69fedf58f8ab1ab511f7c6ac1969cebf1c935f] sysfs: Fix crash on empty group attributes array. It addresses the exact crash that I've run into.
Please see https://lore.kernel.org/all/170863445442.1479840.1818801787239831650.stgit@d...
I applied that patch on top of 6.6.160-rc1, and this fixed the issue for me: The resulting kernel booted fine, and seems to work without problem.
Or maybe you should even consider to take the whole series (3 patches), which are:
Dan Williams (3): sysfs: Fix crash on empty group attributes array sysfs: Document new "group visible" helpers sysfs: Introduce DEFINE_SIMPLE_SYSFS_GROUP_VISIBLE()
fs/sysfs/group.c | 4 +- include/linux/sysfs.h | 85 +++++++++++++++++++++++++++++++++++++++++++++++-- 2 files changed, 84 insertions(+), 5 deletions(-)
base-commit: 70317fd24b419091aa0a6dc3ea3ec7bb50c37c32
Please see https://lore.kernel.org/all/170863444851.1479840.10249410842428140526.stgit@...
Beste Grüße, Peter Schneider