Hi Eric, On Wed, Jul 19, 2023 at 03:17:04PM +0000, Eric Van Hensbergen wrote: > This series attempts to fix a reported exception with mmap > on newer kernels. > > Fixes: 1543b4c5071c ("fs/9p: remove writeback fid and fix per-file modes") > Link: https://lore.kernel.org/v9fs/ZK25XZ%2BGpR3KHIB%2F@xxxxxxxxxxxxxx/ > Reported-by: Robert Schwebel <r.schwebel@xxxxxxxxxxxxxx> > Signed-off-by: Eric Van Hensbergen <ericvh@xxxxxxxxxx> > --- > Changes in v3: > - Clarify debug print to read-only mmap mode versus no mmap mode in > v9fs_file_mmap > - Fix suggested regression tags and propagate across series > - Link to v2: https://lore.kernel.org/r/20230716-fixes-overly-restrictive-mmap-v2-0-147d6b93f699@xxxxxxxxxx > > Changes in v2: > - fix requested changes in commit messages > - add patch to remove unnecessary invalidate_inode_pages in mmap readonly path > - Link to v1: https://lore.kernel.org/r/20230716-fixes-overly-restrictive-mmap-v1-0-0683b283b932@xxxxxxxxxx I've tested this patch series with my qemu setup and it resolves the issue. Thanks for taking care! Tested-by: Robert Schwebel <r.schwebel@xxxxxxxxxxxxxx> ----------8<---------- rsc@dude05:~/work/DistroKit$ configs/platform-v7a/run Forwarding SSH port 127.0.0.1:24910 -> qemu:22 [ 0.000000] L2C: platform modifies aux control register: 0x02020000 -> 0x02420000 [ 0.000000] L2C: DT/platform modifies aux control register: 0x02020000 -> 0x02420000 [ 0.004896] smp_twd: clock not found -2 [ 0.726397] simple-pm-bus bus@40000000:motherboard-bus@40000000:iofpga@7,00000000: Failed to create device link (0x180) with dcc:tcrefclk [ 0.742338] simple-pm-bus bus@40000000:motherboard-bus@40000000:iofpga@7,00000000: Failed to create device link (0x180) with dcc:tcrefclk [ 0.809910] physmap-flash 48000000.psram: map_probe failed [ 1.201306] 9pnet_virtio: no channels available for device root ____ _ _ | _ \ ___ _ __ __ _ _ _| |_ _ __ ___ _ __ (_)_ __ | |_) / _ \ '_ \ / _` | | | | __| '__/ _ \| '_ \| \ \/ / | __/ __/ | | | (_| | |_| | |_| | | (_) | | | | |> < |_| \___|_| |_|\__, |\__,_|\__|_| \___/|_| |_|_/_/\_\ |___/ ____ _ _ _ ___ _ | _ \(_)___| |_ _ __ ___ | |/ (_) |_ | | | | / __| __| '__/ _ \| ' /| | __| | |_| | \__ \ |_| | | (_) | . \| | |_ |____/|_|___/\__|_| \___/|_|\_\_|\__| OSELAS(R)-DistroKit-2019.12.0-00429-g57ffae760eb9 / v7a-2019.12.0-00429-g57ffae760eb9 ptxdist-2023.07.1/2023-07-11T19:56:50+0200 DistroKit login: root root@DistroKit:~ mount / -o remount,rw root@DistroKit:~ ldconfig root@DistroKit:~ uname -a Linux DistroKit 6.4.0 #1 SMP PREEMPT 2023-07-01T00:00:00+00:00 armv7l GNU/Linux ----------8<---------- rsc -- Pengutronix e.K. | Dipl.-Ing. Robert Schwebel | Steuerwalder Str. 21 | https://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-9 |