Dear Greg, 6259151c04d4e0085e00d2dcb471ebdd1778e72e from mainline is missing in 6.1.103-rc1 and completes 39823b47bbd40502632ffba90ebb34fff7c8b5e8. Please note that the second hunk from 6259151 needs to be modified to cleanly apply to 6.1.103-rc1. Example on [1]. [1]: https://github.com/linux-ia64/linux-stable-rc/blob/__mirror/patches/linux-6.1.y/6259151c04d4e0085e00d2dcb471ebdd1778e72e.patch **** ## Long version ## This patch series breaks operation of the hp-sim kernel in ski. I think it happens when trying to access the ext4 root FS in the simulation, see for example [2] for more details. [2]: https://github.com/linux-ia64/linux-stable-rc/issues/3 From the call trace: ``` [...] [<a0000001000263f0>] die+0x1b0/0x3e0 [<a00000010004bd40>] ia64_do_page_fault+0x680/0x9c0 [<a00000010000c4e0>] ia64_leave_kernel+0x0/0x280 [<a00000010063f6a0>] dd_limit_depth+0x80/0x140 [...] ``` ...I tracked it down to [3] and following the linked discussion ([4]), this is actually patch 2 of 2. And 1 of 2 ([5]) is in upstream, but not in 6.1.103-rc1. [3]: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=39823b47bbd40502632ffba90ebb34fff7c8b5e8 [4]: https://lore.kernel.org/all/20240509170149.7639-3-bvanassche@xxxxxxx/ [5]: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6259151c04d4e0085e00d2dcb471ebdd1778e72e Applying that patch ([5]) (plus adapting hunk #2 of it) on top of 6.1.103-rc1 fixes it for me ([6]). [6]: https://github.com/linux-ia64/linux-stable-rc/actions/runs/10170700172#summary-28130632329 Cheers, Frank
