firewire-ohci: 7.0.0-rc1 warnings+crash
From: John Ogness
Date: Fri Feb 27 2026 - 19:08:01 EST
Hi,
With 7.0.0-rc1 I am seeing 2 warnings and a crash when loading the
firewire-ohci module.
I will not have time to debug this for a couple weeks. But maybe it is
already obvious to some of the firewire folks.
This is a ppc64be machine (4k pages).
John Ogness
Following is the kernel log when running:
# insmod ./firewire-ohci.ko
[ 71.072914][ T1781] firewire_ohci 0001:03:0e.0: enabling device (0000 -> 0002)
[ 71.075242][ T1781] ------------[ cut here ]------------
[ 71.075439][ T1781] WARNING: [] mm/vmalloc.c:554 at .vmap_small_pages_range_noflush+0x354/0x558, CPU#0: insmod/1781
[ 71.075696][ T1781] Modules linked in: firewire_ohci(+) firewire_core netconsole 8021q garp stp mrp llc nouveau drm_ttm_helper ttm gpu_sched drm_client_lib i2c_algo_bit drm_display_helper drm_kms_helper drm_gpuvm drm_exec drm drm_panel_orientation_quirks windfarm_smu_sat binfmt_misc b43 rng_core cordic bcma mac80211 libarc4 windfarm_cpufreq_clamp cfg80211 snd_aoa_codec_tas snd_aoa_fabric_layout windfarm_pm72 snd_aoa windfarm_pid rfkill windfarm_max6690_sensor windfarm_fcu_controls windfarm_ad7417_sensor windfarm_lm75_sensor windfarm_core snd_aoa_i2sbus snd_aoa_soundbus snd_pcm joydev mousedev snd_timer mac_hid ssb snd soundcore rack_meter mmc_core uninorth_agp agpgart
[ 71.094003][ T1781] CPU: 0 UID: 0 PID: 1781 Comm: insmod Not tainted 7.0.0-rc1 #2 PREEMPT
[ 71.097990][ T1781] Hardware name: PowerMac7,2 PPC970 0x390202 PowerMac
[ 71.102043][ T1781] NIP: c00000000052e074 LR: c00000000052e128 CTR: c00000000bd7c880
[ 71.106208][ T1781] REGS: c00000000dee6a10 TRAP: 0700 Not tainted (7.0.0-rc1)
[ 71.110505][ T1781] MSR: 900000000202b032 <SF,HV,VEC,EE,FP,ME,IR,DR,RI> CR: 84008448 XER: 20000000
[ 71.115002][ T1781] IRQMASK: 0
[ 71.115002][ T1781] GPR00: c00000000052e128 c00000000dee6cb0 c000000001b7f100 ffffff04002a72e6
[ 71.115002][ T1781] GPR04: c00000000052e128 c0003d00015eafff ffffffffffffffff ffffffffffffffff
[ 71.115002][ T1781] GPR08: 0000000000000000 000fff04002a72e6 0000000000000000 0000000000000003
[ 71.115002][ T1781] GPR12: 0000000024008442 c000000003ca5000 c0003d00015e1000 c00000000a9cb988
[ 71.115002][ T1781] GPR16: c000000002da2dc0 c00000000c7eaf08 c00000000dee6f48 ee1fffffffffffbf
[ 71.115002][ T1781] GPR20: c000000004042000 800000000000018e c000000002b82d80 c0003d00015eb000
[ 71.115002][ T1781] GPR24: c000000002da2e58 0000000000000001 0000000000000001 c0003d00015eafff
[ 71.115002][ T1781] GPR28: c00000000a415b80 0000000000000000 c0003d00015eb000 c00000000403f050
[ 71.156263][ T1781] NIP [c00000000052e074] .vmap_small_pages_range_noflush+0x354/0x558
[ 71.160879][ T1781] LR [c00000000052e128] .vmap_small_pages_range_noflush+0x408/0x558
[ 71.165656][ T1781] Call Trace:
[ 71.170546][ T1781] [c00000000dee6cb0] [c00000000052e128] .vmap_small_pages_range_noflush+0x408/0x558 (unreliable)
[ 71.175967][ T1781] [c00000000dee6de0] [c0000000005357d0] .vmap+0xd4/0x1a8
[ 71.181890][ T1781] [c00000000dee6e90] [c0003d00010f1e64] .ar_context_init+0xfc/0x38c [firewire_ohci]
[ 71.187978][ T1781] [c00000000dee6fe0] [c0003d00010f5378] .pci_probe+0x25c/0x8c0 [firewire_ohci]
[ 71.194098][ T1781] [c00000000dee70b0] [c000000000c6ad64] .pci_device_probe+0x108/0x26c
[ 71.200284][ T1781] [c00000000dee7140] [c000000000d5ecc8] .really_probe+0x110/0x564
[ 71.206420][ T1781] [c00000000dee71e0] [c000000000d5f1c8] .__driver_probe_device+0xac/0x1ec
[ 71.212222][ T1781] [c00000000dee7270] [c000000000d5f468] .driver_probe_device+0x5c/0x120
[ 71.217586][ T1781] [c00000000dee7300] [c000000000d5f928] .__driver_attach+0x1e8/0x384
[ 71.222495][ T1781] [c00000000dee7390] [c000000000d5b3c8] .bus_for_each_dev+0xac/0x12c
[ 71.227382][ T1781] [c00000000dee7440] [c000000000d5e274] .driver_attach+0x34/0x4c
[ 71.232111][ T1781] [c00000000dee74c0] [c000000000d5d5b8] .bus_add_driver+0x2a0/0x334
[ 71.236656][ T1781] [c00000000dee7560] [c000000000d60d8c] .driver_register+0x84/0x1b8
[ 71.241063][ T1781] [c00000000dee75e0] [c000000000c698e4] .__pci_register_driver+0x8c/0xac
[ 71.245385][ T1781] [c00000000dee7670] [c0003d00010f6ea4] .fw_ohci_init+0x30/0x44 [firewire_ohci]
[ 71.249706][ T1781] [c00000000dee76e0] [c00000000000ef58] .do_one_initcall+0x8c/0x5d4
[ 71.254172][ T1781] [c00000000dee77e0] [c00000000021aae4] .do_init_module+0x70/0x33c
[ 71.258857][ T1781] [c00000000dee7870] [c00000000021de5c] .init_module_from_file+0x110/0x134
[ 71.263662][ T1781] [c00000000dee79a0] [c00000000021e0ec] .idempotent_init_module+0x26c/0x34c
[ 71.268466][ T1781] [c00000000dee7af0] [c00000000021e270] .__se_sys_finit_module+0xa4/0x188
[ 71.273142][ T1781] [c00000000dee7ba0] [c00000000002b73c] .system_call_exception+0x16c/0x280
[ 71.277757][ T1781] [c00000000dee7e10] [c00000000000b754] system_call_common+0xf4/0x258
[ 71.282285][ T1781] ---- interrupt: c00 at 0x3fff90945174
[ 71.286856][ T1781] NIP: 00003fff90945174 LR: 0000000117b6d338 CTR: 0000000000000000
[ 71.291455][ T1781] REGS: c00000000dee7e80 TRAP: 0c00 Not tainted (7.0.0-rc1)
[ 71.296087][ T1781] MSR: 900000000200f032 <SF,HV,VEC,EE,PR,FP,ME,IR,DR,RI> CR: 20000202 XER: 00000000
[ 71.300895][ T1781] IRQMASK: 0
[ 71.300895][ T1781] GPR00: 0000000000000161 00003ffff63304b0 00003fff909f0e00 0000000000000003
[ 71.300895][ T1781] GPR04: 0000000117b7a6f8 0000000000000000 0000000000000000 0000000000000000
[ 71.300895][ T1781] GPR08: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
[ 71.300895][ T1781] GPR12: 0000000000000000 00003fff909f2d28 0000000000000000 0000000000000000
[ 71.300895][ T1781] GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000080000000
[ 71.300895][ T1781] GPR20: 0000000000000001 0000000000000000 0000000000000000 00003ffff63317c4
[ 71.300895][ T1781] GPR24: 00003ffff6330800 0000000117b7b788 00003fff907ee870 0000000117b7a6f8
[ 71.300895][ T1781] GPR28: 0000000000000000 0000000000000000 00003fff907eef50 00003ffff63304b0
[ 71.339126][ T1781] NIP [00003fff90945174] 0x3fff90945174
[ 71.342757][ T1781] LR [0000000117b6d338] 0x117b6d338
[ 71.346372][ T1781] ---- interrupt: c00
[ 71.349938][ T1781] Code: 7929d182 0b090000 2c2f0000 4182ffd0 3d220122 3a093cc0 e9300000 7d297850 7d233674 7929d302 7c234800 41820010 <0fe00000> 4bfff661 4bffffb4 4bfff969
[ 71.357572][ T1781] irq event stamp: 0
[ 71.361401][ T1781] hardirqs last enabled at (0): [<0000000000000000>] 0x0
[ 71.365343][ T1781] hardirqs last disabled at (0): [<c0000000000e938c>] .copy_process+0x9e4/0x2128
[ 71.369291][ T1781] softirqs last enabled at (0): [<c0000000000e938c>] .copy_process+0x9e4/0x2128
[ 71.373188][ T1781] softirqs last disabled at (0): [<0000000000000000>] 0x0
[ 71.377087][ T1781] ---[ end trace 0000000000000000 ]---
[ 71.393853][ T1781] ------------[ cut here ]------------
[ 71.397878][ T1781] WARNING: [(unsigned long)v & mask] include/linux/instrumented.h:67 at .folios_put_refs+0x118/0x248, CPU#1: insmod/1781
[ 71.406168][ T1781] Modules linked in: firewire_ohci(+) firewire_core netconsole 8021q garp stp mrp llc nouveau drm_ttm_helper ttm gpu_sched drm_client_lib i2c_algo_bit drm_display_helper drm_kms_helper drm_gpuvm drm_exec drm drm_panel_orientation_quirks windfarm_smu_sat binfmt_misc b43 rng_core cordic bcma mac80211 libarc4 windfarm_cpufreq_clamp cfg80211 snd_aoa_codec_tas snd_aoa_fabric_layout windfarm_pm72 snd_aoa windfarm_pid rfkill windfarm_max6690_sensor windfarm_fcu_controls windfarm_ad7417_sensor windfarm_lm75_sensor windfarm_core snd_aoa_i2sbus snd_aoa_soundbus snd_pcm joydev mousedev snd_timer mac_hid ssb snd soundcore rack_meter mmc_core uninorth_agp agpgart
[ 71.433394][ T1781] CPU: 1 UID: 0 PID: 1781 Comm: insmod Tainted: G W 7.0.0-rc1 #2 PREEMPT
[ 71.437972][ T1781] Tainted: [W]=WARN
[ 71.442535][ T1781] Hardware name: PowerMac7,2 PPC970 0x390202 PowerMac
[ 71.447736][ T1781] NIP: c0000000004a64a4 LR: c0000000004a69ec CTR: c0000000004a688c
[ 71.453273][ T1781] REGS: c00000000dee6910 TRAP: 0700 Tainted: G W (7.0.0-rc1)
[ 71.459350][ T1781] MSR: 900000000202b032 <SF,HV,VEC,EE,FP,ME,IR,DR,RI> CR: 44008842 XER: 20000000
[ 71.465678][ T1781] IRQMASK: 0
[ 71.465678][ T1781] GPR00: c0000000004a69ec c00000000dee6bb0 c000000001b7f100 c00000000dee6d68
[ 71.465678][ T1781] GPR04: c00000000dee6cec c00000000dee6e70 c000000007295238 0000000000000007
[ 71.465678][ T1781] GPR08: 0000000000000000 0000000000000001 0000a2f612000042 c0003d00010f7508
[ 71.465678][ T1781] GPR12: 0000000044008842 c00000000ffff700 0000000000000000 0000000000000000
[ 71.465678][ T1781] GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000080000000
[ 71.465678][ T1781] GPR20: 0000000000000001 0000000000000000 0000000000000000 c0000000038b1bb0
[ 71.465678][ T1781] GPR24: 0000000000000000 c0003d000126a348 c00000000dee6cec 0000000000000000
[ 71.465678][ T1781] GPR28: c00000000dee6d68 ffffffff815f0997 0000000000000006 0000a2f61200000e
[ 71.521625][ T1781] NIP [c0000000004a64a4] .folios_put_refs+0x118/0x248
[ 71.526860][ T1781] LR [c0000000004a69ec] .release_pages+0x160/0x17c
[ 71.531889][ T1781] Call Trace:
[ 71.536976][ T1781] [c00000000dee6bb0] [c0000001ff9b2808] 0xc0000001ff9b2808 (unreliable)
[ 71.542101][ T1781] [c00000000dee6c70] [c0000000004a69ec] .release_pages+0x160/0x17c
[ 71.752192][ T1781] BUG: Unable to handle kernel data access at 0xa2f612000042
[ 71.756852][ T1781] Faulting instruction address: 0xc0000000004a6418
[ 71.761078][ T1781] Oops: Kernel access of bad area, sig: 11 [#1]
[ 71.765026][ T1781] BE PAGE_SIZE=4K MMU=Hash SMP NR_CPUS=2 PowerMac
[ 71.769033][ T1781] Modules linked in: firewire_ohci(+) firewire_core netconsole 8021q garp stp mrp llc nouveau drm_ttm_helper ttm gpu_sched drm_client_lib i2c_algo_bit drm_display_helper drm_kms_helper drm_gpuvm drm_exec drm drm_panel_orientation_quirks windfarm_smu_sat binfmt_misc b43 rng_core cordic bcma mac80211 libarc4 windfarm_cpufreq_clamp cfg80211 snd_aoa_codec_tas snd_aoa_fabric_layout windfarm_pm72 snd_aoa windfarm_pid rfkill windfarm_max6690_sensor windfarm_fcu_controls windfarm_ad7417_sensor windfarm_lm75_sensor windfarm_core snd_aoa_i2sbus snd_aoa_soundbus snd_pcm joydev mousedev snd_timer mac_hid ssb snd soundcore rack_meter mmc_core uninorth_agp agpgart
[ 71.795478][ T1781] CPU: 1 UID: 0 PID: 1781 Comm: insmod Tainted: G W 7.0.0-rc1 #2 PREEMPT
[ 71.800475][ T1781] Tainted: [W]=WARN
[ 71.805735][ T1781] Hardware name: PowerMac7,2 PPC970 0x390202 PowerMac
[ 71.811373][ T1781] NIP: c0000000004a6418 LR: c0000000004a69ec CTR: c0000000004a688c
[ 71.817080][ T1781] REGS: c00000000dee6910 TRAP: 0380 Tainted: G W (7.0.0-rc1)
[ 71.822893][ T1781] MSR: 900000000200b032 <SF,HV,VEC,EE,FP,ME,IR,DR,RI> CR: 44008842 XER: 20000000
[ 71.828920][ T1781] IRQMASK: 0
[ 71.828920][ T1781] GPR00: c0000000004a69ec c00000000dee6bb0 c000000001b7f100 c00000000dee6d68
[ 71.828920][ T1781] GPR04: c00000000dee6cec c00000000dee6e70 c000000007295238 0000000000000007
[ 71.828920][ T1781] GPR08: 0000000000000000 0000000000000001 0000a2f612000042 c0003d00010f7508
[ 71.828920][ T1781] GPR12: 0000000044008842 c00000000ffff700 0000000000000000 0000000000000000
[ 71.828920][ T1781] GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000080000000
[ 71.828920][ T1781] GPR20: 0000000000000001 0000000000000000 0000000000000000 c0000000038b1bb0
[ 71.828920][ T1781] GPR24: 0000000000000000 c0003d000126a348 c00000000dee6cec 0000000000000000
[ 71.828920][ T1781] GPR28: c00000000dee6d68 ffffffff815f0997 0000000000000006 0000a2f61200000e
[ 71.876903][ T1781] NIP [c0000000004a6418] .folios_put_refs+0x8c/0x248
[ 71.881518][ T1781] LR [c0000000004a69ec] .release_pages+0x160/0x17c
[ 71.886162][ T1781] Call Trace:
[ 71.890705][ T1781] [c00000000dee6bb0] [c0000001ff9b2808] 0xc0000001ff9b2808 (unreliable)
[ 71.895389][ T1781] [c00000000dee6c70] [c0000000004a69ec] .release_pages+0x160/0x17c
[ 71.900095][ T1781] [c00000000dee6e90] [c0003d00010f20d0] .ar_context_init+0x368/0x38c [firewire_ohci]
[ 71.904914][ T1781] [c00000000dee6fe0] [c0003d00010f5378] .pci_probe+0x25c/0x8c0 [firewire_ohci]
[ 71.909699][ T1781] [c00000000dee70b0] [c000000000c6ad64] .pci_device_probe+0x108/0x26c
[ 71.914467][ T1781] [c00000000dee7140] [c000000000d5ecc8] .really_probe+0x110/0x564
[ 71.919165][ T1781] [c00000000dee71e0] [c000000000d5f1c8] .__driver_probe_device+0xac/0x1ec
[ 71.923876][ T1781] [c00000000dee7270] [c000000000d5f468] .driver_probe_device+0x5c/0x120
[ 71.928536][ T1781] [c00000000dee7300] [c000000000d5f928] .__driver_attach+0x1e8/0x384
[ 71.933089][ T1781] [c00000000dee7390] [c000000000d5b3c8] .bus_for_each_dev+0xac/0x12c
[ 71.937524][ T1781] [c00000000dee7440] [c000000000d5e274] .driver_attach+0x34/0x4c
[ 71.941789][ T1781] [c00000000dee74c0] [c000000000d5d5b8] .bus_add_driver+0x2a0/0x334
[ 71.945940][ T1781] [c00000000dee7560] [c000000000d60d8c] .driver_register+0x84/0x1b8
[ 71.949921][ T1781] [c00000000dee75e0] [c000000000c698e4] .__pci_register_driver+0x8c/0xac
[ 71.953800][ T1781] [c00000000dee7670] [c0003d00010f6ea4] .fw_ohci_init+0x30/0x44 [firewire_ohci]
[ 71.957583][ T1781] [c00000000dee76e0] [c00000000000ef58] .do_one_initcall+0x8c/0x5d4
[ 71.961314][ T1781] [c00000000dee77e0] [c00000000021aae4] .do_init_module+0x70/0x33c
[ 71.965033][ T1781] [c00000000dee7870] [c00000000021de5c] .init_module_from_file+0x110/0x134
[ 71.968674][ T1781] [c00000000dee79a0] [c00000000021e0ec] .idempotent_init_module+0x26c/0x34c
[ 71.972301][ T1781] [c00000000dee7af0] [c00000000021e270] .__se_sys_finit_module+0xa4/0x188
[ 71.975866][ T1781] [c00000000dee7ba0] [c00000000002b73c] .system_call_exception+0x16c/0x280
[ 71.979337][ T1781] [c00000000dee7e10] [c00000000000b754] system_call_common+0xf4/0x258
[ 71.982732][ T1781] ---- interrupt: c00 at 0x3fff90945174
[ 71.986164][ T1781] NIP: 00003fff90945174 LR: 0000000117b6d338 CTR: 0000000000000000
[ 71.989622][ T1781] REGS: c00000000dee7e80 TRAP: 0c00 Tainted: G W (7.0.0-rc1)
[ 71.993162][ T1781] MSR: 900000000200f032 <SF,HV,VEC,EE,PR,FP,ME,IR,DR,RI> CR: 20000202 XER: 00000000
[ 71.996866][ T1781] IRQMASK: 0
[ 71.996866][ T1781] GPR00: 0000000000000161 00003ffff63304b0 00003fff909f0e00 0000000000000003
[ 71.996866][ T1781] GPR04: 0000000117b7a6f8 0000000000000000 0000000000000000 0000000000000000
[ 71.996866][ T1781] GPR08: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
[ 71.996866][ T1781] GPR12: 0000000000000000 00003fff909f2d28 0000000000000000 0000000000000000
[ 71.996866][ T1781] GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000080000000
[ 71.996866][ T1781] GPR20: 0000000000000001 0000000000000000 0000000000000000 00003ffff63317c4
[ 71.996866][ T1781] GPR24: 00003ffff6330800 0000000117b7b788 00003fff907ee870 0000000117b7a6f8
[ 71.996866][ T1781] GPR28: 0000000000000000 0000000000000000 00003fff907eef50 00003ffff63304b0
[ 72.029204][ T1781] NIP [00003fff90945174] 0x3fff90945174
[ 72.032647][ T1781] LR [0000000117b6d338] 0x117b6d338
[ 72.036099][ T1781] ---- interrupt: c00
[ 72.039484][ T1781] Code: 3bc00000 fba100a8 fbe100b8 3b600000 48000088 60000000 73ea0003 7bc91764 395f0034 7d3a4aaa 40820094 7c0004ac <7fa05028> 7fa9e810 7fa0512d 40c2fff4
[ 72.046718][ T1781] ---[ end trace 0000000000000000 ]---
[ 72.050575][ T1781]
[ 73.044412][ T1781] Kernel panic - not syncing: Fatal exception
[ 73.047957][ T1781] ---[ end Kernel panic - not syncing: Fatal exception ]---