Reproduced this with mainline arm64 kernel https://kernel.ubuntu.com/~kernel-ppa/mainline/v6.5/arm64/linux-image-unsigned-6.5.0-060500-generic_6.5.0-060500.202308271831_arm64.deb
[ 184.853731] pstate: 40400005 (nZcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 184.862627] pc : d_instantiate_new+0xa8/0xc8 [ 184.867973] lr : ext4_add_nondir+0xf0/0x148 [ 184.872959] sp : ffff8000828ab950 [ 184.877059] x29: ffff8000828ab950 x28: 0000000000000000 x27: ffffd975b8b9a6c0 [ 184.885032] x26: ffff7b0094e32c20 x25: 0000000000008180 x24: ffff7b01432e9848 [ 184.893573] x23: ffff8000828aba30 x22: ffff7b0094e32c00 x21: ffff7b0172d574d0 [ 184.902071] x20: ffff7b0089fbc688 x19: 0000000000000000 x18: ffff800082295068 [ 184.910550] x17: 0000000000000000 x16: 0000000000000000 x15: 5e9ca062546ae354 [ 184.919056] x14: 998c9ec3ecc3a882 x13: 24d23ffaf8b470b6 x12: 022485883b51bee2 [ 184.927692] x11: 5c7ac5c18df459ab x10: 6e24d23ffaf8b470 x9 : ffffd975b7c3d730 [ 184.936212] x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000000 [ 184.944811] x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000 [ 184.953651] x2 : ffffd975bab42cf0 x1 : ffff7b0089fbc688 x0 : ffff7b0094e32c00 [ 184.962508] Call trace: [ 184.965316] d_instantiate_new+0xa8/0xc8 [ 184.969803] ext4_create+0x120/0x238 [ 184.973910] lookup_open.isra.0+0x478/0x4c8 [ 184.978689] open_last_lookups+0x160/0x3b0 [ 184.983374] path_openat+0x9c/0x290 [ 184.987372] do_filp_open+0xac/0x188 [ 184.991444] do_sys_openat2+0xe4/0x120 [ 184.995701] __arm64_sys_openat+0x6c/0xd8 [ 185.000271] invoke_syscall+0x7c/0x128 [ 185.004520] el0_svc_common.constprop.0+0x5c/0x168 [ 185.009977] do_el0_svc+0x38/0x68 [ 185.013775] el0_svc+0x30/0xe0 [ 185.017265] el0t_64_sync_handler+0x148/0x158 [ 185.022183] el0t_64_sync+0x1b0/0x1b8 [ 185.026332] Code: d2800002 d2800010 d2800011 d65f03c0 (d4210000) [ 185.033606] ---[ end trace 0000000000000000 ]---
Took a while to trigger.
Reproduced this with mainline arm64 kernel https:/ /kernel. ubuntu. com/~kernel- ppa/mainline/ v6.5/arm64/ linux-image- unsigned- 6.5.0-060500- generic_ 6.5.0-060500. 202308271831_ arm64.deb
[ 184.853731] pstate: 40400005 (nZcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) new+0xa8/ 0xc8 nondir+ 0xf0/0x148 new+0xa8/ 0xc8 0x120/0x238 open.isra. 0+0x478/ 0x4c8 lookups+ 0x160/0x3b0 0x9c/0x290 open+0xac/ 0x188 openat2+ 0xe4/0x120 sys_openat+ 0x6c/0xd8 syscall+ 0x7c/0x128 common. constprop. 0+0x5c/ 0x168 svc+0x38/ 0x68 sync_handler+ 0x148/0x158 sync+0x1b0/ 0x1b8
[ 184.862627] pc : d_instantiate_
[ 184.867973] lr : ext4_add_
[ 184.872959] sp : ffff8000828ab950
[ 184.877059] x29: ffff8000828ab950 x28: 0000000000000000 x27: ffffd975b8b9a6c0
[ 184.885032] x26: ffff7b0094e32c20 x25: 0000000000008180 x24: ffff7b01432e9848
[ 184.893573] x23: ffff8000828aba30 x22: ffff7b0094e32c00 x21: ffff7b0172d574d0
[ 184.902071] x20: ffff7b0089fbc688 x19: 0000000000000000 x18: ffff800082295068
[ 184.910550] x17: 0000000000000000 x16: 0000000000000000 x15: 5e9ca062546ae354
[ 184.919056] x14: 998c9ec3ecc3a882 x13: 24d23ffaf8b470b6 x12: 022485883b51bee2
[ 184.927692] x11: 5c7ac5c18df459ab x10: 6e24d23ffaf8b470 x9 : ffffd975b7c3d730
[ 184.936212] x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000000
[ 184.944811] x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000
[ 184.953651] x2 : ffffd975bab42cf0 x1 : ffff7b0089fbc688 x0 : ffff7b0094e32c00
[ 184.962508] Call trace:
[ 184.965316] d_instantiate_
[ 184.969803] ext4_create+
[ 184.973910] lookup_
[ 184.978689] open_last_
[ 184.983374] path_openat+
[ 184.987372] do_filp_
[ 184.991444] do_sys_
[ 184.995701] __arm64_
[ 185.000271] invoke_
[ 185.004520] el0_svc_
[ 185.009977] do_el0_
[ 185.013775] el0_svc+0x30/0xe0
[ 185.017265] el0t_64_
[ 185.022183] el0t_64_
[ 185.026332] Code: d2800002 d2800010 d2800011 d65f03c0 (d4210000)
[ 185.033606] ---[ end trace 0000000000000000 ]---
Took a while to trigger.