Red Hat - Defect ID: RHEL-81892
Kernel panic when booting with ARM 64k with image mode

Issue

What were you trying to do that didn't work? Boot RHEL 10.0 with 64k in image mode using bootc switch method. But the RHEL10.0 fails to boot and get kernel panic. What is the impact of this issue to you? The issue is blocking QE to test image mode RHEL 10 with 64k. Please provide the package NVR for which the bug is seen: kernel-6.12.0-55.el10.aarch64+64k How reproducible is this bug?: 100% Steps to reproduce Install a Fedora 41 in image mode, for example using the beaker job https://beaker.engineering.redhat.com/jobs/10737719 On Fedora 41, build a RHEL10.0 image with 64k using container file . See full file in attachment podman build  --platform "linux/arm64" -t localhost/bootc:beaker_virt_arm_10_64k  -f container_rhel10_file.64k  . Switch to RHEL 10 image and rebootbootc switch --quiet --transport containers-storage localhost/bootc:beaker_virt_arm_10_64k rstrnt-reboot Via host console, we can see the host gets kernel panic. [  OK  ] Mounted sysroot.mount - /sysroot. Starting ostree-prepare-root.service - OSTree Prepare OS/... [  139.807101] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000018 [  139.816094] Mem abort info: [  139.818958] ESR = 0x0000000096000005 [  139.822785] EC = 0x25: DABT (current EL), IL = 32 bits [  139.828214] SET = 0, FnV = 0 [  139.831336] EA = 0, S1PTW = 0 [  139.834541] FSC = 0x05: level 1 translation fault [  139.839528] Data abort info: [  139.842466] ISV = 0, ISS = 0x00000005, ISS2 = 0x00000000 [  139.848071] CM = 0, WnR = 0, TnD = 0, TagAccess = 0 [  139.853234] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [  139.858663] user pgtable: 64k pages, 48-bit VAs, pgdp=0000000148d05200 [  139.865337] [0000000000000018] pgd=0000000000000000, p4d=0000000000000000, pud=0000000000000000 [  139.874237] Internal error: Oops: 0000000096000005 1 SMP [  139.879933] Modules linked in: erofs xfs nvme_tcp nvme_fabrics crct10dif_ce nvme_keyring ghash_ce mlx5_core mpt3sas acpi_power_meter sha2_ce acpi_ipmi nvme mlxfw raid_class sha256_arm64 nvme_core sha1_ce sbsa_gwdt psample scsi_transport_sas ipmi_devintf nvme_auth pci_hyperv_intf i2c_tegra ipmi_msghandler sunrpc dm_mirror dm_region_hash dm_log dm_mod be2iscsi iscsi_boot_sysfs cxgb4i cxgb4 tls libcxgbi libcxgb iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi [  139.921658] CPU: 5 UID: 0 PID: 1330 Comm: ostree-prepare- Not tainted 6.12.0-55.el10.aarch64+64k #1 [  139.930909] Hardware name: Quanta Cloud Technology Inc. QuantaGrid S74G-2U 1S7GZ9Z0000/S7G MB (CG1), BIOS 3A21 07/10/2024 [  139.942116] pstate: 43400009 (nZcv daif +PAN UAO +TCO +DIT -SSBS BTYPE=-) [  139.949234] pc : set_blocksize+0x40/0x110 [  139.953337] lr : sb_set_blocksize+0x28/0x90 [  139.957611] sp : ffff8000b508fae0 [  139.960995] x29: ffff8000b508fae0 x28: ffff0000c89c4200 x27: 0000000000000000 [  139.968292] x26: 0000000000000000 x25: 0000000000000000 x24: ffff0000c8dba5c0 [  139.975587] x23: ffff0000c8dba5c0 x22: ffff80007c7a0280 x21: ffff0000c2127600 [  139.982885] x20: ffff0000c2aaa800 x19: 0000000000001000 x18: ffffffffffffffff [  139.990182] x17: 4553006964623d4d x16: 4554535953425553 x15: ffff800080000000 [  139.997479] x14: ffff0000c2b478a8 x13: ffffffffffffffff x12: 0000000000020000 [  140.004776] x11: 7f7f7f7f7f7f7f7f x10: 0000000000000001 x9 : ffff800080824350 [  140.012073] x8 : 0068000000000703 x7 : ffff8000b53b0000 x6 : 0068000198840703 [  140.019369] x5 : ffff8000b508f900 x4 : 0000000000000fff x3 : 0000000000000000 [  140.026665] x2 : 0000000000001000 x1 : 0000000000001000 x0 : 00000000ffffffea [  140.033961] Call trace: [  140.036456]  set_blocksize+0x40/0x110 [  140.040197]  sb_set_blocksize+0x28/0x90 [  140.044115]  erofs_fc_fill_super+0x1b8/0x2d8 [erofs] [  140.049193]  get_tree_nodev+0x78/0xc8 [  140.052942]  erofs_fc_get_tree+0xac/0x100 [erofs] [  140.057749]  vfs_get_tree+0x30/0x108 [  140.061401]  vfs_cmd_create+0x58/0xf0 [  140.065144]  __do_sys_fsconfig+0x458/0x5f0 [  140.069329]  __arm64_sys_fsconfig+0x2c/0x40 [  140.073604]  invoke_syscall.constprop.0+0x74/0xd0 [  140.078416]  do_el0_svc+0x48/0xe8 [  140.081801]  el0_svc+0x44/0x1d0 [  140.085014]  el0t_64_sync_handler+0x120/0x130 [  140.089465]  el0t_64_sync+0x1a4/0x1a8 [  140.093207] Code: d503233f a9bd7bfd 910003fd a90153f3 (f9400c62) [  140.099437] --[ end trace 0000000000000000 ]-- [  140.131724] Kernel panic - not syncing: Oops: Fatal exception [  140.137597] SMP: stopping secondary CPUs [  140.141616] Kernel Offset: 0x1e0000 from 0xffff800080000000 [  140.147310] PHYS_OFFSET: 0x80000000 [  140.150870] CPU features: 0x10,0000000d,002a6928,5667fea7 [  140.156386] Memory Limit: none [  140.187198] --[ end Kernel panic - not syncing: Oops: Fatal exception ]-- Expected results Host can boot up Actual results kernel panic

Release Notes

No. of Comments

Resolution

Unresolved