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https://kernel.googlesource.com/pub/scm/linux/kernel/git/torvalds/linux
synced 2025-09-22 16:39:32 +10:00
daa9ada209
Erhard reported that his G5 was crashing with v6.6-rc kernels:
mpic: Setting up HT PICs workarounds for U3/U4
BUG: Unable to handle kernel data access at 0xfeffbb62ffec65fe
Faulting instruction address: 0xc00000000005dc40
Oops: Kernel access of bad area, sig: 11 [#1]
BE PAGE_SIZE=4K MMU=Hash SMP NR_CPUS=2 PowerMac
Modules linked in:
CPU: 0 PID: 0 Comm: swapper/0 Tainted: G T 6.6.0-rc3-PMacGS #1
Hardware name: PowerMac11,2 PPC970MP 0x440101 PowerMac
NIP: c00000000005dc40 LR: c000000000066660 CTR: c000000000007730
REGS: c0000000022bf510 TRAP: 0380 Tainted: G T (6.6.0-rc3-PMacGS)
MSR: 9000000000001032 <SF,HV,ME,IR,DR,RI> CR: 44004242 XER: 00000000
IRQMASK: 3
GPR00: 0000000000000000 c0000000022bf7b0 c0000000010c0b00 00000000000001ac
GPR04: 0000000003c80000 0000000000000300 c0000000f20001ae 0000000000000300
GPR08: 0000000000000006 feffbb62ffec65ff 0000000000000001 0000000000000000
GPR12: 9000000000001032 c000000002362000 c000000000f76b80 000000000349ecd8
GPR16: 0000000002367ba8 0000000002367f08 0000000000000006 0000000000000000
GPR20: 00000000000001ac c000000000f6f920 c0000000022cd985 000000000000000c
GPR24: 0000000000000300 00000003b0a3691d c0003e008030000e 0000000000000000
GPR28: c00000000000000c c0000000f20001ee feffbb62ffec65fe 00000000000001ac
NIP hash_page_do_lazy_icache+0x50/0x100
LR __hash_page_4K+0x420/0x590
Call Trace:
hash_page_mm+0x364/0x6f0
do_hash_fault+0x114/0x2b0
data_access_common_virt+0x198/0x1f0
--- interrupt: 300 at mpic_init+0x4bc/0x10c4
NIP: c000000002020a5c LR: c000000002020a04 CTR: 0000000000000000
REGS: c0000000022bf9f0 TRAP: 0300 Tainted: G T (6.6.0-rc3-PMacGS)
MSR: 9000000000001032 <SF,HV,ME,IR,DR,RI> CR: 24004248 XER: 00000000
DAR: c0003e008030000e DSISR: 40000000 IRQMASK: 1
...
NIP mpic_init+0x4bc/0x10c4
LR mpic_init+0x464/0x10c4
--- interrupt: 300
pmac_setup_one_mpic+0x258/0x2dc
pmac_pic_init+0x28c/0x3d8
init_IRQ+0x90/0x140
start_kernel+0x57c/0x78c
start_here_common+0x1c/0x20
A bisect pointed to the breakage beginning with commit
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|---|---|---|
| .. | ||
| ptrace | ||
| syscalls | ||
| trace | ||
| vdso | ||
| .gitignore | ||
| 85xx_entry_mapping.S | ||
| align.c | ||
| asm-offsets.c | ||
| audit_32.h | ||
| audit.c | ||
| btext.c | ||
| cacheinfo.c | ||
| cacheinfo.h | ||
| compat_audit.c | ||
| cpu_setup_6xx.S | ||
| cpu_setup_44x.S | ||
| cpu_setup_e500.S | ||
| cpu_setup_pa6t.S | ||
| cpu_setup_power.c | ||
| cpu_setup_ppc970.S | ||
| cpu_specs_8xx.h | ||
| cpu_specs_40x.h | ||
| cpu_specs_44x.h | ||
| cpu_specs_47x.h | ||
| cpu_specs_85xx.h | ||
| cpu_specs_book3s_32.h | ||
| cpu_specs_book3s_64.h | ||
| cpu_specs_e500mc.h | ||
| cpu_specs.h | ||
| cputable.c | ||
| crash_dump.c | ||
| dawr.c | ||
| dbell.c | ||
| dma-iommu.c | ||
| dma-mask.c | ||
| dma-swiotlb.c | ||
| dt_cpu_ftrs.c | ||
| early_32.c | ||
| eeh_cache.c | ||
| eeh_driver.c | ||
| eeh_event.c | ||
| eeh_pe.c | ||
| eeh_sysfs.c | ||
| eeh.c | ||
| entry_32.S | ||
| epapr_hcalls.S | ||
| epapr_paravirt.c | ||
| exceptions-64e.S | ||
| exceptions-64s.S | ||
| fadump.c | ||
| firmware.c | ||
| fpu.S | ||
| head_8xx.S | ||
| head_32.h | ||
| head_40x.S | ||
| head_44x.S | ||
| head_64.S | ||
| head_85xx.S | ||
| head_book3s_32.S | ||
| head_booke.h | ||
| hw_breakpoint_constraints.c | ||
| hw_breakpoint.c | ||
| idle_6xx.S | ||
| idle_64e.S | ||
| idle_85xx.S | ||
| idle_book3s.S | ||
| idle.c | ||
| ima_arch.c | ||
| interrupt_64.S | ||
| interrupt.c | ||
| io-workarounds.c | ||
| io.c | ||
| iomap.c | ||
| iommu.c | ||
| irq_64.c | ||
| irq.c | ||
| isa-bridge.c | ||
| jump_label.c | ||
| kdebugfs.c | ||
| kgdb.c | ||
| kprobes-ftrace.c | ||
| kprobes.c | ||
| kvm_emul.S | ||
| kvm.c | ||
| l2cr_6xx.S | ||
| legacy_serial.c | ||
| Makefile | ||
| mce_power.c | ||
| mce.c | ||
| misc_32.S | ||
| misc_64.S | ||
| misc.S | ||
| module_32.c | ||
| module_64.c | ||
| module.c | ||
| msi.c | ||
| note.S | ||
| nvram_64.c | ||
| of_platform.c | ||
| optprobes_head.S | ||
| optprobes.c | ||
| paca.c | ||
| pci_32.c | ||
| pci_64.c | ||
| pci_dn.c | ||
| pci_of_scan.c | ||
| pci-common.c | ||
| pci-hotplug.c | ||
| pmc.c | ||
| ppc_save_regs.S | ||
| proc_powerpc.c | ||
| process.c | ||
| prom_entry_64.S | ||
| prom_init_check.sh | ||
| prom_init.c | ||
| prom_parse.c | ||
| prom.c | ||
| reloc_32.S | ||
| reloc_64.S | ||
| rtas_entry.S | ||
| rtas_flash.c | ||
| rtas_pci.c | ||
| rtas-proc.c | ||
| rtas-rtc.c | ||
| rtas.c | ||
| rtasd.c | ||
| secure_boot.c | ||
| security.c | ||
| secvar-ops.c | ||
| secvar-sysfs.c | ||
| setup_32.c | ||
| setup_64.c | ||
| setup-common.c | ||
| setup.h | ||
| signal_32.c | ||
| signal_64.c | ||
| signal.c | ||
| signal.h | ||
| smp-tbsync.c | ||
| smp.c | ||
| stacktrace.c | ||
| static_call.c | ||
| suspend.c | ||
| switch.S | ||
| swsusp_32.S | ||
| swsusp_64.c | ||
| swsusp_85xx.S | ||
| swsusp_asm64.S | ||
| swsusp.c | ||
| sys_ppc32.c | ||
| syscall.c | ||
| syscalls.c | ||
| sysfs.c | ||
| systbl.c | ||
| tau_6xx.c | ||
| time.c | ||
| tm.S | ||
| traps.c | ||
| ucall.S | ||
| udbg_16550.c | ||
| udbg.c | ||
| uprobes.c | ||
| vdso32_wrapper.S | ||
| vdso64_wrapper.S | ||
| vdso.c | ||
| vecemu.c | ||
| vector.S | ||
| vmlinux.lds.S | ||
| watchdog.c | ||