Date
June 20, 2025, 12:38 p.m.
| Environment | |
|---|---|
| qemu-armv7 |
--- cut here --- [ 72.525511] Unable to handle kernel NULL pointer dereference at virtual address 00000000 when read [ 72.525788] [00000000] *pgd=4432b003, *pmd=00000000 [ 72.526797] Internal error: Oops: 205 [#1] SMP ARM [ 72.529273] Modules linked in: fuse [ 72.530626] CPU: 0 UID: 0 PID: 391 Comm: perl Not tainted 6.16.0-rc2-next-20250620 #1 NONE [ 72.532483] Hardware name: Generic DT based system [ 72.533690] PC is at pidfs_free_pid+0x20/0x58 [ 72.534982] LR is at put_pid.part.0+0x5c/0x74 [ 72.535817] pc : [<c0761354>] lr : [<c0489250>] psr: 00070113 [ 72.536708] sp : f0801ef8 ip : 00000000 fp : 00000002 [ 72.537360] r10: c248b340 r9 : 0000000a r8 : 00000000 [ 72.537777] r7 : f0801f48 r6 : 00000001 r5 : c22251c8 r4 : 00000000 [ 72.538235] r3 : 00000001 r2 : 00000000 r1 : 00000000 r0 : c3edfd00 [ 72.539201] Flags: nzcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user [ 72.540399] Control: 30c5387d Table: 44331440 DAC: fffffffd [ 72.541209] Register r0 information: slab kmalloc-cg-128 start c3edfd00 pointer offset 0 size 128 [ 72.542855] Register r1 information: NULL pointer [ 72.543685] Register r2 information: NULL pointer [ 72.544337] Register r3 information: non-paged memory [ 72.544846] Register r4 information: NULL pointer [ 72.545501] Register r5 information: non-slab/vmalloc memory [ 72.545929] Register r6 information: non-paged memory [ 72.546580] Register r7 information: 2-page vmalloc region starting at 0xf0800000 allocated at start_kernel+0x558/0x6f8 [ 72.547825] Register r8 information: NULL pointer [ 72.548292] Register r9 information: non-paged memory [ 72.549074] Register r10 information: non-slab/vmalloc memory [ 72.549541] Register r11 information: non-paged memory [ 72.550120] Register r12 information: NULL pointer [ 72.550457] Process perl (pid: 391, stack limit = 0x173d38da) [ 72.551364] Stack: (0xf0801ef8 to 0xf0802000) [ 72.552764] 1ee0: c3edfd00 c22251c8 [ 72.553619] 1f00: 00000001 c0489250 edbd5640 c41bd7c0 00000001 c04f9644 00000000 c04b0938 [ 72.554314] 1f20: f0801f48 edbd5370 edbd5688 c249fe84 c2204f5c 00000000 00000001 c2290fc0 [ 72.554845] 1f40: c21c2d00 c248b160 c4369000 c36f40c0 0000004f 6528076a 00000007 c22030a4 [ 72.555352] 1f60: 00000002 00000002 00000009 c41bd7c0 c248a9a0 00000100 c2203080 c0469ff4 [ 72.556473] 1f80: e16a7f90 00000010 c2985380 f0801f80 c21b8258 0000000a 00000000 c21c2600 [ 72.556756] 1fa0: c21c2600 ffffa724 c2203d40 00400100 00000001 c04e1104 0000001b c23285e4 [ 72.557256] 1fc0: 00000000 c41bd7c0 c24cd150 ffffffff c41bd7c0 c21b8044 00730000 00000000 [ 72.558291] 1fe0: f9f19fa8 c046a378 0047374a 20070030 ffffffff c046a664 0047374a c1535e0c [ 72.559504] Call trace: [ 72.559764] pidfs_free_pid from put_pid.part.0+0x5c/0x74 [ 72.560537] put_pid.part.0 from rcu_core+0x2d8/0x9fc [ 72.560921] rcu_core from handle_softirqs+0x14c/0x3d0 [ 72.561159] handle_softirqs from __irq_exit_rcu+0xa0/0x114 [ 72.561384] __irq_exit_rcu from irq_exit+0x10/0x30 [ 72.561585] irq_exit from call_with_stack+0x18/0x20 [ 72.563350] call_with_stack from __irq_usr+0x84/0xa0 [ 72.564175] Exception stack(0xf9f19fb0 to 0xf9f19ff8) [ 72.564388] 9fa0: 00000000 00000002 00000000 00000009 [ 72.564690] 9fc0: 0076586c 00738190 00738190 0076584c 0076584c 00730000 00000000 00000009 [ 72.564972] 9fe0: 00738190 beec7b60 0047374b 0047374a 20070030 ffffffff [ 72.565429] Code: e3a01000 e5801028 e3740a01 88bd8070 (e5945000) [ 72.567823] ---[ end trace 0000000000000000 ]---
--- cut here --- [ 80.881363] Unable to handle kernel NULL pointer dereference at virtual address 00000000 when read [ 80.881568] [00000000] *pgd=80000040204003, *pmd=00000000 [ 80.883247] Internal error: Oops: 205 [#1] SMP ARM [ 80.891956] Modules linked in: fuse [ 80.893180] CPU: 0 UID: 0 PID: 662 Comm: perl Not tainted 6.16.0-rc2-next-20250620 #1 NONE [ 80.896108] Hardware name: Generic DT based system [ 80.896980] PC is at pidfs_free_pid+0x20/0x58 [ 80.900263] LR is at put_pid.part.0+0x5c/0x74 [ 80.900560] pc : [<c0761354>] lr : [<c0489250>] psr: 000b0113 [ 80.900869] sp : f0801ef8 ip : edbd8630 fp : 00000003 [ 80.901113] r10: c248b340 r9 : 0000000a r8 : 00000000 [ 80.901365] r7 : f0801f48 r6 : 00000002 r5 : c22251c8 r4 : 00000000 [ 80.901946] r3 : 00000001 r2 : 00000000 r1 : 00000000 r0 : c427df80 [ 80.902871] Flags: nzcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user [ 80.903798] Control: 30c5387d Table: 43f0b9c0 DAC: fffffffd [ 80.906346] Register r0 information: slab kmalloc-cg-128 start c427df80 pointer offset 0 size 128 [ 80.908398] Register r1 information: NULL pointer [ 80.910419] Register r2 information: NULL pointer [ 80.911046] Register r3 information: non-paged memory [ 80.911330] Register r4 information: NULL pointer [ 80.911558] Register r5 information: non-slab/vmalloc memory [ 80.913382] Register r6 information: non-paged memory [ 80.915600] Register r7 information: 2-page vmalloc region starting at 0xf0800000 allocated at start_kernel+0x558/0x6f8 [ 80.916757] Register r8 information: NULL pointer [ 80.916990] Register r9 information: non-paged memory [ 80.917224] Register r10 information: non-slab/vmalloc memory [ 80.917487] Register r11 information: non-paged memory [ 80.919919] Register r12 information: non-slab/vmalloc memory [ 80.921313] Process perl (pid: 662, stack limit = 0x37f4f701) [ 80.923245] Stack: (0xf0801ef8 to 0xf0802000) [ 80.924247] 1ee0: c427df80 c22251c8 [ 80.927703] 1f00: 00000002 c0489250 edbd5640 c42589c0 00000002 c04f9644 00000000 c04b0884 [ 80.928051] 1f20: 00000000 edbd5370 edbd5688 c249fe84 c2204f5c 00000000 00000001 c2290fc0 [ 80.928384] 1f40: c21c2d00 c248b160 c4476090 c4336274 00000003 951ffa7a 00000007 c22030a4 [ 80.929404] 1f60: 0000000a 00000200 00000009 c42589c0 c248a9a0 00000100 c2203080 c0469ff4 [ 80.930617] 1f80: d312c250 00000012 c2985380 f0801f80 c21b8258 00000009 00000000 c21c2600 [ 80.932227] 1fa0: c21c2600 ffffaa67 c2203d40 0040010c 00000001 c04e1104 0000001b 00000000 [ 80.934847] 1fc0: 00000000 c42589c0 c24cd150 ffffffff fa091d1c 000000a8 c42589c0 007e8000 [ 80.935326] 1fe0: fa091ce0 c046a378 c06fe504 a00b0013 ffffffff c046a664 c06fe504 c1535e0c [ 80.936060] Call trace: [ 80.936249] pidfs_free_pid from put_pid.part.0+0x5c/0x74 [ 80.940220] put_pid.part.0 from rcu_core+0x2d8/0x9fc [ 80.941382] rcu_core from handle_softirqs+0x14c/0x3d0 [ 80.942063] handle_softirqs from __irq_exit_rcu+0xa0/0x114 [ 80.942573] __irq_exit_rcu from irq_exit+0x10/0x30 [ 80.942837] irq_exit from call_with_stack+0x18/0x20 [ 80.943242] call_with_stack from __irq_svc+0x90/0xac [ 80.943540] Exception stack(0xfa091ce8 to 0xfa091d30) [ 80.945503] 1ce0: c22054a4 ff7df510 00000000 d3dcd508 00000011 c3dcd500 [ 80.946510] 1d00: ffffffff c42589c0 000000a8 2ba12000 007e8000 c1ea3000 ff7df508 fa091d38 [ 80.947848] 1d20: 00000000 c06fe504 a00b0013 ffffffff [ 80.949093] __irq_svc from mod_memcg_lruvec_state+0x104/0x25c [ 80.949951] mod_memcg_lruvec_state from __lruvec_stat_mod_folio+0x98/0xb0 [ 80.950936] __lruvec_stat_mod_folio from folio_remove_rmap_ptes+0x1a0/0x288 [ 80.951249] folio_remove_rmap_ptes from unmap_page_range+0x6e8/0xfd4 [ 80.951538] unmap_page_range from unmap_vmas+0xc8/0x108 [ 80.953465] unmap_vmas from exit_mmap+0xf0/0x448 [ 80.956265] exit_mmap from __mmput+0x28/0x11c [ 80.956845] __mmput from do_exit+0x278/0x97c [ 80.957399] do_exit from do_group_exit+0x40/0x8c [ 80.958267] do_group_exit from pid_child_should_wake+0x0/0x68 [ 80.959407] Code: e3a01000 e5801028 e3740a01 88bd8070 (e5945000) [ 80.962496] ---[ end trace 0000000000000000 ]---