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Message-ID: <789c17e6-5ebc-4e37-93cd-19d24f148fd8@redhat.com> Date: Wed, 19 Feb 2025 09:40:17 -0500 From: Luiz Capitulino <luizcap@...hat.com> To: Ryan Roberts <ryan.roberts@....com>, LKML <linux-kernel@...r.kernel.org>, linux-mm@...ck.org Cc: ardb@...nel.org Subject: Re: kernel BUG at arch/arm64/mm/mmu.c:185! On 2025-02-19 09:26, Ryan Roberts wrote: > On 19/02/2025 14:16, Luiz Capitulino wrote: >> On 2025-02-19 03:41, Ryan Roberts wrote: >>> On 19/02/2025 02:27, Luiz Capitulino wrote: >>>> Hi, >>>> >>>> I'm getting the crash below with Linus tree commit >>>> 2408a807bfc3f738850ef5ad5e3fd59d66168996 on a Ampere Mt. Jade with two sockets >>>> (backtrace below). >>> >>> Thanks for the bug report, I'll take a look this morning, but I'm off work >>> tomorrow and Friday so if I can't figure it out before end of day I won't be >>> able to look again until Monday, unless someone can pick it up in the meantime. >> >> No rush at all. Please, enjoy your time off :) > > Afraid I've run out of time on this for today, so adding some details below. > I'll come back to it next week unless someone else steps in. > >> >>> Anyway, is there a specific config you're compiling for? And what about kernel >>> command line args? >> >> Config is attached. The kernel command-line is: >> >> """ >> ro crashkernel=1G-4G:406M,4G-64G:470M,64G-:726M rd.lvm.lv=cs_ampere-mtjade- >> altra-03/root rd.lvm.lv=cs_ampere-mtjade-altra-03/swap >> earlycon=pl011,mmio,0x100002600000 >> """ >> >>> Is it 100% reproducible for you? >> >> That is a good question. Right now it is (just tried again with latest Linus >> tree 6537cfb395f352782918d8ee7b7f10ba2cc3cbf2). But I do have the recollection >> that I was able to boot a bad kernel a few times. >> >> Btw, I'll try to bisect again and will also try to update the system's firmware >> just in case. >> >>> How much RAM does your system have? (I have 2 >>> socket Mt. Jade with 512G; I'll try to repro on that). >> >> Mine is 512G, maybe we're lucky and it's the same system. >> >>>> It happens very early during boot. Passing 'nokaslr' in the command-line works >>>> around the issue (ie. I can boot and use the system normally). Doesn't seem to >>>> happen with 6.13. I tried bisecting it but got nowhere... >>>> >>>> [ 0.000000] ------------[ cut here ]------------ >>>> [ 0.000000] kernel BUG at arch/arm64/mm/mmu.c:185! >>> >>> This is: >>> >>> /* >>> * After the PTE entry has been populated once, we >>> * only allow updates to the permission attributes. >>> */ >>> BUG_ON(!pgattr_change_is_safe(pte_val(old_pte), pte_val(__ptep_get(ptep)))); >>> >>> So we have a valid -> valid PTE transition where either the PFNs are changing, >>> we are trying to change permissions on a contiguous entry, we are trying to >>> transition from non-global to global, or we are trying to change other >>> explicitly disallowed bits. >>> >>>> [ 0.000000] Internal error: Oops - BUG: 00000000f2000800 [#1] SMP >>>> [ 0.000000] Modules linked in: >>>> [ 0.000000] CPU: 0 UID: 0 PID: 0 Comm: swapper Not tainted 6.14.0-rc3+ #8 >>>> [ 0.000000] pstate: 400000c9 (nZcv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--) >>>> [ 0.000000] pc : alloc_init_cont_pte+0x20c/0x3d0 >>>> [ 0.000000] lr : alloc_init_cont_pte+0x204/0x3d0 >>>> [ 0.000000] sp : ffffb45836ec78b0 >>>> [ 0.000000] x29: ffffb45836ec7940 x28: ffff6fea00000000 x27: 0068000000000f07 >>>> [ 0.000000] x26: ffff6fea00200000 x25: 0000400000000000 x24: ffffffffff433000 >>>> [ 0.000000] x23: dfff800000000000 x22: 0000d01600000000 x21: 0068000000000f07 >>>> [ 0.000000] x20: ffff6fea00000000 x19: ffff6fea00010000 x18: 00000000ae5a3fb1 >>>> [ 0.000000] x17: 0000000000001114 x16: 00000000bfc60000 x15: 0000000000000200 >>>> [ 0.000000] x14: 0000000000000000 x13: 1ffff68b06dd8f1c x12: 00000000f1f1f1f1 >>>> [ 0.000000] x11: ffff768b06dd8f1c x10: ffffb45835a1ca38 x9 : 0000000000000000 >>>> [ 0.000000] x8 : 0000000041b58ab3 x7 : 0000000000000000 x6 : 0000000000000000 >>>> [ 0.000000] x5 : 006840000a861f07 x4 : 000000000000a861 x3 : 000000000000a861 >>>> [ 0.000000] x2 : 006840000a861f03 x1 : 0068400000000f07 x0 : 0000000000000000 >>>> [ 0.000000] Call trace: >>>> [ 0.000000] alloc_init_cont_pte+0x20c/0x3d0 (P) >>>> [ 0.000000] alloc_init_cont_pmd+0x20c/0x4d0 >>>> [ 0.000000] alloc_init_pud+0x244/0x400 >>>> [ 0.000000] create_kpti_ng_temp_pgd+0xf8/0x1c8 >>> >>> This is an alias for __create_pgd_mapping_locked() so I suspect we are actually >>> in __map_memblock(). >>> >>>> [ 0.000000] map_mem.constprop.0+0x1d8/0x3b8 >>>> [ 0.000000] paging_init+0x98/0x330 >>>> [ 0.000000] setup_arch+0xac/0x170 >>>> [ 0.000000] start_kernel+0x74/0x3c8 >>>> [ 0.000000] __primary_switched+0x8c/0xa0 >>>> [ 0.000000] Code: f9400301 97ffff64 72001c1f 54fffe21 (d4210000) >>>> [ 0.000000] ---[ end trace 0000000000000000 ]--- >>>> [ 0.000000] Kernel panic - not syncing: Oops - BUG: Fatal exception >>>> [ 0.000000] ---[ end Kernel panic - not syncing: Oops - BUG: Fatal >>>> exception ]--- >>>> >>> >>> So I guess either we are setting a PTE entry into a table for the first time, >>> where somehow the table has not been initially cleared (very unlikely) or we are >>> trying to update the permissions of an already mapped pte. In that latter case, >>> I think we should only be remapping the kernel image portion of the linear map. >>> >>> I can't see any obvious recent changes in this area. I'll see if I can repro and >>> poke around a bit more. >> >> OK, maybe you'll be able to reproduce with the config I'm attaching. > > I can reproduce _a_ panic, but it's different from the one you shared. I'm > running defconfig on Ampere Altra with 2 sockets and 512G RAM. It appears to > repro reliably as long as kaslr is enabled. Well, after I pasted my kernel command-line to you I wondered why I didn't have a console= option. So, I added console=ttyAMA0,115200n8 and it changed the crash for me (see below). > I tried reproduing on VM, but with no luck. I suspect there is something about > the physical layout of memory that provokes the bug. I tried to force the memory > layout to match Altra using kvmtool but it only supports a single physical > region currently. And merging all the regions into 1 uber region is too big and > the VMM fails. So I think we are stuck having to keep rebooting the bare metal. Yes, I forgot to say that I've been using KVM guests for my kernel work on this same system and I never saw this crash on those guests (they're NUMA guests). Here's my new crash: [ 0.000000] Booting Linux on physical CPU 0x0000120000 [0x413fd0c1] [ 0.000000] Linux version 6.14.0-rc3-00060-g6537cfb395f3 (luizcap@...ere-mtjade-altra-03.khw.eng.rdu2.dc.redhat.com) (gcc (GCC) 11.5.0 20240719 (Red Hat 11.5.0-5), GNU ld version 2.35.2-60.el9) #1 SMP PREEMPT_DYNAMIC Wed Feb 19 08:39:20 EST 2025 [ 0.000000] KASLR enabled [ 0.000000] earlycon: pl11 at MMIO 0x0000100002600000 (options '') [ 0.000000] printk: legacy bootconsole [pl11] enabled [ 0.000000] efi: EFI v2.7 by American Megatrends [ 0.000000] efi: ACPI 2.0=0xbfc30000 TPMFinalLog=0xbfc60000 SMBIOS 3.0=0xb93dff98 MEMATTR=0xb8e3a018 ESRT=0xbb242298 TPMEventLog=0xb2da7518 RNG=0xb2dafe98 MEMRESERVE=0xb5482818 [ 0.000000] random: crng init done [ 0.000000] esrt: Reserving ESRT space from 0x00000000bb242298 to 0x00000000bb2422f8. [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000BFC30000 000024 (v02 Ampere) [ 0.000000] ACPI: XSDT 0x00000000BB300000 0000E4 (v01 Ampere Altra 00000000 AMI 01000013) [ 0.000000] ACPI: FACP 0x00000000BB1A0000 000114 (v06 Ampere Altra 00000000 INTL 20190509) [ 0.000000] ACPI: DSDT 0x00000000BB0B0000 02F09A (v02 Ampere Jade 00000001 INTL 20200717) [ 0.000000] ACPI: FACS 0x00000000BFC50000 000040 [ 0.000000] ACPI: DBG2 0x00000000BB1B0000 00005C (v00 Ampere Altra 00000000 INTL 20190509) [ 0.000000] ACPI: GTDT 0x00000000BB190000 000110 (v03 Ampere Altra 00000000 INTL 20190509) [ 0.000000] ACPI: SSDT 0x00000000BB180000 00002D (v02 Ampere Altra 00000001 INTL 20190509) [ 0.000000] ACPI: EINJ 0x00000000BB150000 000150 (v01 Ampere Altra 00000001 INTL 20200717) [ 0.000000] ACPI: SDEI 0x00000000BB140000 000024 (v01 Ampere Altra 00000001 INTL 20200717) [ 0.000000] ACPI: SPMI 0x00000000BB130000 000041 (v05 ALASKA A M I 00000000 AMI. 00000000) [ 0.000000] ACPI: SPMI 0x00000000BB120000 000041 (v05 ALASKA A M I 00000000 AMI. 00000000) [ 0.000000] ACPI: SPMI 0x00000000BB110000 000041 (v05 ALASKA A M I 00000000 AMI. 00000000) [ 0.000000] ACPI: FIDT 0x00000000BA5F0000 00009C (v01 ALASKA A M I 01072009 AMI 00010013) [ 0.000000] ACPI: SPCR 0x00000000B8E10000 000050 (v02 A M I APTIO V 01072009 AMI. 0005000F) [ 0.000000] ACPI: TPM2 0x00000000B3050000 000064 (v04 ALASKA A M I 00000001 AMI 00000000) [ 0.000000] ACPI: PPTT 0x00000000B2F50000 006E60 (v02 Ampere Altra 00000000 AMP. 01000013) [ 0.000000] ACPI: SLIT 0x00000000B2F90000 000030 (v01 Ampere Altra 00000000 AMP. 01000013) [ 0.000000] ACPI: SRAT 0x00000000B2F40000 000CF0 (v03 Ampere Altra 00000000 AMP. 01000013) [ 0.000000] ACPI: HEST 0x00000000B2F30000 0008D8 (v01 Ampere Altra 00000001 ARM 00000099) [ 0.000000] ACPI: BERT 0x00000000BB160000 000030 (v01 Ampere Altra 00000001 INTL 20200717) [ 0.000000] ACPI: MCFG 0x00000000B2F20000 0000EC (v01 Ampere Altra 00000001 AMP. 01000013) [ 0.000000] ACPI: IORT 0x00000000B2F10000 000900 (v00 Ampere Altra 00000000 AMP. 01000013) [ 0.000000] ACPI: APIC 0x00000000B2F60000 003354 (v05 Ampere Altra 00000003 AMI 01000013) [ 0.000000] ACPI: PCCT 0x00000000B2E80000 000ABC (v02 Ampere Altra 00000003 AMP. 01000013) [ 0.000000] ACPI: FPDT 0x00000000B2E50000 000044 (v01 ALASKA A M I 01072009 AMI 01000013) [ 0.000000] ACPI: WSMT 0x00000000B8090000 000028 (v01 ALASKA A M I 01072009 AMI 00010013) [ 0.000000] ACPI: BGRT 0x00000000B8DB0000 000038 (v01 ALASKA A M I 01072009 AMI 00010013) [ 0.000000] ACPI: SPCR: console: pl011,mmio32,0x100002600000,115200 [ 0.000000] ACPI: Use ACPI SPCR as default console: Yes [ 0.000000] ACPI: SRAT: Node 0 PXM 0 [mem 0x88300000-0x883fffff] [ 0.000000] ACPI: SRAT: Node 0 PXM 0 [mem 0x90000000-0xbfffffff] [ 0.000000] ACPI: SRAT: Node 0 PXM 0 [mem 0x80000000000-0x8007fffffff] [ 0.000000] ACPI: SRAT: Node 0 PXM 0 [mem 0x800c0000000-0x83fffffffff] [ 0.000000] ACPI: SRAT: Node 1 PXM 1 [mem 0x400000000000-0x4000bfffffff] [ 0.000000] ACPI: SRAT: Node 1 PXM 1 [mem 0x400100000000-0x403fffffffff] [ 0.000000] NUMA: Node 0 [mem 0x88300000-0x883fffff] + [mem 0x90000000-0xbfffffff] -> [mem 0x88300000-0xbfffffff] [ 0.000000] NUMA: Node 0 [mem 0x88300000-0xbfffffff] + [mem 0x80000000000-0x8007fffffff] -> [mem 0x88300000-0x8007fffffff] [ 0.000000] NUMA: Node 0 [mem 0x88300000-0x8007fffffff] + [mem 0x800c0000000-0x83fffffffff] -> [mem 0x88300000-0x83fffffffff] [ 0.000000] NUMA: Node 1 [mem 0x400000000000-0x4000bfffffff] + [mem 0x400100000000-0x403fffffffff] -> [mem 0x400000000000-0x403fffffffff] [ 0.000000] NODE_DATA(0) allocated [mem 0x83ffffe92c0-0x83fffffffff] [ 0.000000] NODE_DATA(1) allocated [mem 0x403fc00b22c0-0x403fc00c8fff] [ 0.000000] ------------[ cut here ]------------ [ 0.000000] WARNING: CPU: 0 PID: 0 at mm/sparse.c:142 memblocks_present+0x154/0x3f0 [ 0.000000] Modules linked in: [ 0.000000] CPU: 0 UID: 0 PID: 0 Comm: swapper Not tainted 6.14.0-rc3-00060-g6537cfb395f3 #1 [ 0.000000] pstate: 600000c9 (nZCv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 0.000000] pc : memblocks_present+0x154/0x3f0 [ 0.000000] lr : memblocks_present+0x168/0x3f0 [ 0.000000] sp : ffffd58845d17b30 [ 0.000000] x29: ffffd58845d17c20 x28: 00000000c4b40000 x27: 0000000400000000 [ 0.000000] x26: dfff800000000000 x25: 00000000001fffff x24: 00000004000c0000 [ 0.000000] x23: 0000000000000001 x22: 0000000000000004 x21: ffffd58846cd81e0 [ 0.000000] x20: 0000000000001078 x19: 000000000000020f x18: 0000000000000003 [ 0.000000] x17: 0000000000000004 x16: 0000403fc00c9000 x15: 0000020000000000 [ 0.000000] x14: 0000000000036d40 x13: 0000000100000000 x12: ffff6b7e97ffb258 [ 0.000000] x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000 [ 0.000000] x8 : 0000000000000000 x7 : ffffd58846ca8424 x6 : 1ffffab108d95082 [ 0.000000] x5 : 00000000000000de x4 : 1ffffab108ba2f7c x3 : 1ffffab108ba2f76 [ 0.000000] x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000000 [ 0.000000] Call trace: [ 0.000000] memblocks_present+0x154/0x3f0 (P) [ 0.000000] sparse_init+0x40/0x340 [ 0.000000] bootmem_init+0x134/0x360 [ 0.000000] setup_arch+0xc0/0x170 [ 0.000000] start_kernel+0x74/0x3c8 [ 0.000000] __primary_switched+0x8c/0xa0 [ 0.000000] ---[ end trace 0000000000000000 ]--- [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000088300000-0x00000000ffffffff] [ 0.000000] DMA32 empty [ 0.000000] Normal [mem 0x0000000100000000-0x0000403fffffffff] [ 0.000000] Device empty [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000088300000-0x00000000883fffff] [ 0.000000] node 0: [mem 0x0000000090000000-0x0000000091ceffff] [ 0.000000] node 0: [mem 0x0000000091cf0000-0x0000000091deffff] [ 0.000000] node 0: [mem 0x0000000091df0000-0x0000000091ffffff] [ 0.000000] node 0: [mem 0x0000000092000000-0x000000009277ffff] [ 0.000000] node 0: [mem 0x0000000092780000-0x00000000b1085fff] [ 0.000000] node 0: [mem 0x00000000b1086000-0x00000000b134ffff] [ 0.000000] node 0: [mem 0x00000000b1350000-0x00000000b15effff] [ 0.000000] node 0: [mem 0x00000000b15f0000-0x00000000b25fffff] [ 0.000000] node 0: [mem 0x00000000b2600000-0x00000000b2e8ffff] [ 0.000000] node 0: [mem 0x00000000b2e90000-0x00000000b2f0ffff] [ 0.000000] node 0: [mem 0x00000000b2f10000-0x00000000b308ffff] [ 0.000000] node 0: [mem 0x00000000b3090000-0x00000000b30effff] [ 0.000000] node 0: [mem 0x00000000b30f0000-0x00000000b310ffff] [ 0.000000] node 0: [mem 0x00000000b3110000-0x00000000b315ffff] [ 0.000000] node 0: [mem 0x00000000b3160000-0x00000000b3d2ffff] [ 0.000000] node 0: [mem 0x00000000b3d30000-0x00000000b3d3ffff] [ 0.000000] node 0: [mem 0x00000000b3d40000-0x00000000b402ffff] [ 0.000000] node 0: [mem 0x00000000b4030000-0x00000000b403ffff] [ 0.000000] node 0: [mem 0x00000000b4040000-0x00000000b433ffff] [ 0.000000] node 0: [mem 0x00000000b4340000-0x00000000b547ffff] [ 0.000000] node 0: [mem 0x00000000b5480000-0x00000000b8e3ffff] [ 0.000000] node 0: [mem 0x00000000b8e40000-0x00000000b8e4ffff] [ 0.000000] node 0: [mem 0x00000000b8e50000-0x00000000b8feffff] [ 0.000000] node 0: [mem 0x00000000b8ff0000-0x00000000b900ffff] [ 0.000000] node 0: [mem 0x00000000b9010000-0x00000000b93affff] [ 0.000000] node 0: [mem 0x00000000b93b0000-0x00000000b94fffff] [ 0.000000] node 0: [mem 0x00000000b9500000-0x00000000b953ffff] [ 0.000000] node 0: [mem 0x00000000b9540000-0x00000000b955ffff] [ 0.000000] node 0: [mem 0x00000000b9560000-0x00000000b957ffff] [ 0.000000] node 0: [mem 0x00000000b9580000-0x00000000ba5affff] [ 0.000000] node 0: [mem 0x00000000ba5b0000-0x00000000ba64ffff] [ 0.000000] node 0: [mem 0x00000000ba650000-0x00000000ba66ffff] [ 0.000000] node 0: [mem 0x00000000ba670000-0x00000000ba85ffff] [ 0.000000] node 0: [mem 0x00000000ba860000-0x00000000ba8cffff] [ 0.000000] node 0: [mem 0x00000000ba8d0000-0x00000000ba99ffff] [ 0.000000] node 0: [mem 0x00000000ba9a0000-0x00000000bab2ffff] [ 0.000000] node 0: [mem 0x00000000bab30000-0x00000000bab7ffff] [ 0.000000] node 0: [mem 0x00000000bab80000-0x00000000bac1ffff] [ 0.000000] node 0: [mem 0x00000000bac20000-0x00000000bac6ffff] [ 0.000000] node 0: [mem 0x00000000bac70000-0x00000000bad0ffff] [ 0.000000] node 0: [mem 0x00000000bad10000-0x00000000bad9ffff] [ 0.000000] node 0: [mem 0x00000000bada0000-0x00000000bae3ffff] [ 0.000000] node 0: [mem 0x00000000bae40000-0x00000000bae4ffff] [ 0.000000] node 0: [mem 0x00000000bae50000-0x00000000baf2ffff] [ 0.000000] node 0: [mem 0x00000000baf30000-0x00000000baf7ffff] [ 0.000000] node 0: [mem 0x00000000baf80000-0x00000000bb01ffff] [ 0.000000] node 0: [mem 0x00000000bb020000-0x00000000bb0dffff] [ 0.000000] node 0: [mem 0x00000000bb0e0000-0x00000000bb0effff] [ 0.000000] node 0: [mem 0x00000000bb0f0000-0x00000000bb25ffff] [ 0.000000] node 0: [mem 0x00000000bb260000-0x00000000bb28ffff] [ 0.000000] node 0: [mem 0x00000000bb290000-0x00000000bb7affff] [ 0.000000] node 0: [mem 0x00000000bb7b0000-0x00000000bb84ffff] [ 0.000000] node 0: [mem 0x00000000bb850000-0x00000000bb8dffff] [ 0.000000] node 0: [mem 0x00000000bb8e0000-0x00000000bb97ffff] [ 0.000000] node 0: [mem 0x00000000bb980000-0x00000000bb99ffff] [ 0.000000] node 0: [mem 0x00000000bb9a0000-0x00000000bb9bffff] [ 0.000000] node 0: [mem 0x00000000bb9c0000-0x00000000bba0ffff] [ 0.000000] node 0: [mem 0x00000000bba10000-0x00000000bde4ffff] [ 0.000000] node 0: [mem 0x00000000bde50000-0x00000000bdebffff] [ 0.000000] node 0: [mem 0x00000000bdec0000-0x00000000bf05ffff] [ 0.000000] node 0: [mem 0x00000000bf060000-0x00000000bf0effff] [ 0.000000] node 0: [mem 0x00000000bf0f0000-0x00000000bf1cffff] [ 0.000000] node 0: [mem 0x00000000bf1d0000-0x00000000bf21ffff] [ 0.000000] node 0: [mem 0x00000000bf220000-0x00000000bf2bffff] [ 0.000000] node 0: [mem 0x00000000bf2c0000-0x00000000bf2dffff] [ 0.000000] node 0: [mem 0x00000000bf2e0000-0x00000000bf2fffff] [ 0.000000] node 0: [mem 0x00000000bf300000-0x00000000bfc2dfff] [ 0.000000] node 0: [mem 0x00000000bfc2e000-0x00000000bfc2ffff] [ 0.000000] node 0: [mem 0x00000000bfc30000-0x00000000bfc4ffff] [ 0.000000] node 0: [mem 0x00000000bfc50000-0x00000000bfcbffff] [ 0.000000] node 0: [mem 0x00000000bfcc0000-0x00000000bfffffff] [ 0.000000] node 0: [mem 0x0000080000000000-0x000008007fffffff] [ 0.000000] node 0: [mem 0x00000800c0000000-0x0000083fffffffff] [ 0.000000] node 1: [mem 0x0000400000000000-0x00004000bfffffff] [ 0.000000] Unable to handle kernel paging request at virtual address dfff800000000001 [ 0.000000] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] [ 0.000000] Mem abort info: [ 0.000000] ESR = 0x0000000096000004 [ 0.000000] EC = 0x25: DABT (current EL), IL = 32 bits [ 0.000000] SET = 0, FnV = 0 [ 0.000000] EA = 0, S1PTW = 0 [ 0.000000] FSC = 0x04: level 0 translation fault [ 0.000000] Data abort info: [ 0.000000] ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000 [ 0.000000] CM = 0, WnR = 0, TnD = 0, TagAccess = 0 [ 0.000000] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [ 0.000000] [dfff800000000001] address between user and kernel address ranges [ 0.000000] Internal error: Oops: 0000000096000004 [#1] SMP [ 0.000000] Modules linked in: [ 0.000000] CPU: 0 UID: 0 PID: 0 Comm: swapper Tainted: G W 6.14.0-rc3-00060-g6537cfb395f3 #1 [ 0.000000] Tainted: [W]=WARN [ 0.000000] pstate: 800000c9 (Nzcv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 0.000000] pc : subsection_map_init+0xb4/0x160 [ 0.000000] lr : free_area_init+0x368/0xd08 [ 0.000000] sp : ffffd58845d17a90 [ 0.000000] x29: ffffd58845d17a90 x28: 00000000000c0000 x27: 0000000400000000 [ 0.000000] x26: 0000000000080000 x25: ffffd58843f11d60 x24: ffffd58843f11920 [ 0.000000] x23: 0000000000008000 x22: 0000000000080017 x21: dfff800000000000 [ 0.000000] x20: 0000000000000000 x19: 0000000000008000 x18: 0000000000000003 [ 0.000000] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 [ 0.000000] x14: 0000000000000000 x13: 0000000000000001 x12: ffff7ab108bb333d [ 0.000000] x11: 1ffffab108bb333c x10: ffff7ab108bb333c x9 : dfff800000000000 [ 0.000000] x8 : 0000854ef744ccc4 x7 : ffffd58845d999e3 x6 : 0000000000000001 [ 0.000000] x5 : ffffd58845d999e0 x4 : ffff7ab108bb333d x3 : 0000000000000000 [ 0.000000] x2 : 0000000000000000 x1 : 0000000000000001 x0 : 0000000000000008 [ 0.000000] Call trace: [ 0.000000] subsection_map_init+0xb4/0x160 (P) [ 0.000000] free_area_init+0x368/0xd08 [ 0.000000] bootmem_init+0x208/0x360 [ 0.000000] setup_arch+0xc0/0x170 [ 0.000000] start_kernel+0x74/0x3c8 [ 0.000000] __primary_switched+0x8c/0xa0 [ 0.000000] Code: d37b1b40 8b000294 91002280 d343fc01 (38f56821) [ 0.000000] ---[ end trace 0000000000000000 ]--- [ 0.000000] Kernel panic - not syncing: Oops: Fatal exception [ 0.000000] ---[ end Kernel panic - not syncing: Oops: Fatal exception ]---
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