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SubjectRe: [revert commit 83b3836bf83f09beea5f592b126cfdd1bc921e48] [mainline] [6.8.0-rc3]kernel BUG at arch/powerpc/platforms/pseries/iommu.c:100!
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Adding more people

On 08/02/24 8:26 am, Venkat Rao Bagalkote wrote:
>
> Resending as earlier one bounced.
>
> Greetings!!!
>
>
> [revert commit 83b3836bf83f09beea5f592b126cfdd1bc921e48] [mainline]
> [6.8.0-rc3]kernel BUG at arch/powerpc/platforms/pseries/iommu.c:100!
>
>
> By Reverting below commit id, issue is not seen.
>
>
> 83b3836bf83f09beea5f592b126cfdd1bc921e48
>      iommu: Allow ops->default_domain to work when !CONFIG_IOMMU_DMA
>
>
> --- Traces ---
>
> KernelBug: Kernel bug in state 'None': kernel BUG at
> arch/powerpc/platforms/pseries/iommu.c:100!
> [ 7843.148980] Oops: Exception in kernel mode, sig: 5 [#1]
> [ 7843.148984] LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=8192 NUMA pSeries
> [ 7843.148988] Modules linked in: nft_compat nf_tables libcrc32c
> nfnetlink bridge stp llc tls sit tunnel4 ip_tunnel nvram rpadlpar_io
> rpaphp xsk_diag rfkill binfmt_misc mlx5_ib ib_uverbs ib_core
> pseries_rng drm drm_panel_orientation_quirks ext4 mbcache jbd2
> dm_service_time sd_mod t10_pi crc64_rocksoft_generic crc64_rocksoft
> crc64 sg ibmvfc scsi_transport_fc ibmveth mlx5_core mlxfw vmx_crypto
> psample dm_multipath dm_mirror dm_region_hash dm_log dm_mod fuse [last
> unloaded: tls]
> [ 7843.149041] CPU: 17 PID: 218444 Comm: drmgr Kdump: loaded Tainted:
> G          I        6.8.0-rc3-autotest-g99bd3cb0d12e #1
> [ 7843.149047] Hardware name: IBM,9080-HEX POWER10 (raw) 0x800200
> 0xf000006 of:IBM,FW1060.00 (NH1060_016) hv:phyp pSeries
> [ 7843.149051] NIP:  c0000000000ff4d4 LR: c0000000000ff4cc CTR:
> 0000000000000000
> [ 7843.149055] REGS: c0000013aed5f840 TRAP: 0700   Tainted: G         
> I         (6.8.0-rc3-autotest-g99bd3cb0d12e)
> [ 7843.149060] MSR:  8000000000029033 <SF,EE,ME,IR,DR,RI,LE>  CR:
> 44002402  XER: 20040000
> [ 7843.149069] CFAR: c000000000a0d170 IRQMASK: 0
> [ 7843.149069] GPR00: c0000000000ff4cc c0000013aed5fae0
> c000000001512700 c0000013aa362138
> [ 7843.149069] GPR04: 0000000000000000 0000000000000000
> 0000000000000000 0000000119c8afd0
> [ 7843.149069] GPR08: 0000000000000000 c000001284442b00
> 0000000000000001 0000000000001003
> [ 7843.149069] GPR12: 0000000300000000 c0000018ffff2f00
> 0000000000000000 0000000000000000
> [ 7843.149069] GPR16: 0000000000000000 0000000000000000
> 0000000000000000 0000000000000000
> [ 7843.149069] GPR20: 0000000000000000 0000000000000000
> 0000000000000000 0000000000000000
> [ 7843.149069] GPR24: c0000013aed5fc40 0000000000000002
> 0000000000000000 c000000002757d90
> [ 7843.149069] GPR28: c0000000000ff440 c000000002757cb8
> c00000183799c1a0 c0000013aa362b00
> [ 7843.149112] NIP [c0000000000ff4d4] iommu_reconfig_notifier+0x94/0x200
> [ 7843.149123] LR [c0000000000ff4cc] iommu_reconfig_notifier+0x8c/0x200
> [ 7843.149129] Call Trace:
> [ 7843.149131] [c0000013aed5fae0] [c0000000000ff4cc]
> iommu_reconfig_notifier+0x8c/0x200 (unreliable)
> [ 7843.149138] [c0000013aed5fb10] [c0000000001a27b0]
> notifier_call_chain+0xb8/0x19c
> [ 7843.149146] [c0000013aed5fb70] [c0000000001a2a78]
> blocking_notifier_call_chain+0x64/0x98
> [ 7843.149152] [c0000013aed5fbb0] [c000000000c4a898]
> of_reconfig_notify+0x44/0xdc
> [ 7843.149160] [c0000013aed5fc20] [c000000000c4add4]
> of_detach_node+0x78/0xb0
> [ 7843.149165] [c0000013aed5fc70] [c0000000000f96a8]
> ofdt_write.part.0+0x86c/0xbb8
> [ 7843.149171] [c0000013aed5fce0] [c00000000069b4bc]
> proc_reg_write+0xf4/0x150
> [ 7843.149178] [c0000013aed5fd10] [c0000000005bfeb4] vfs_write+0xf8/0x488
> [ 7843.149184] [c0000013aed5fdc0] [c0000000005c0570]
> ksys_write+0x84/0x140
> [ 7843.149189] [c0000013aed5fe10] [c000000000033358]
> system_call_exception+0x138/0x330
> [ 7843.149196] [c0000013aed5fe50] [c00000000000d05c]
> system_call_vectored_common+0x15c/0x2ec
> [ 7843.149203] --- interrupt: 3000 at 0x20000433acb4
> [ 7843.149208] NIP:  000020000433acb4 LR: 0000000000000000 CTR:
> 0000000000000000
> [ 7843.149212] REGS: c0000013aed5fe80 TRAP: 3000   Tainted: G         
> I         (6.8.0-rc3-autotest-g99bd3cb0d12e)
> [ 7843.149217] MSR:  800000000280f033
> <SF,VEC,VSX,EE,PR,FP,ME,IR,DR,RI,LE>  CR: 42002408  XER: 00000000
> [ 7843.149227] IRQMASK: 0
> [ 7843.149227] GPR00: 0000000000000004 00007fffcde2d2c0
> 000000013a707f00 0000000000000006
> [ 7843.149227] GPR04: 00007fffcde2d368 0000000000000020
> 0000000000000000 0000000000000001
> [ 7843.149227] GPR08: 0000000000000020 0000000000000000
> 0000000000000000 0000000000000000
> [ 7843.149227] GPR12: 0000000000000000 000020000403b1e0
> 000000013a6df668 0000000000000006
> [ 7843.149227] GPR16: 0000000000000000 0000000000000002
> 0000000000000004 0000000000000005
> [ 7843.149227] GPR20: 000000013a700018 000000013a6df360
> 000000013a6dcb20 000000013a6dd918
> [ 7843.149227] GPR24: 000000013a6db178 00000001722028c8
> 00007fffcde2d7f8 00000001722028c8
> [ 7843.149227] GPR28: 000000013a6dc340 00007fffcde2d368
> 0000000000000006 0000000000000020
> [ 7843.149268] NIP [000020000433acb4] 0x20000433acb4
> [ 7843.149271] LR [0000000000000000] 0x0
> [ 7843.149274] --- interrupt: 3000
> [ 7843.149277] Code: 4082016c 2c3f0000 41820060 ebff0028 2c3f0000
> 41820054 e87f0018 2c230000 41820014 4890dc75 60000000 e93f0018
> <0b090000> e87f0020 2c230000 4182000c
> [ 7843.149292] ---[ end trace 0000000000000000 ]---
>
>
> Regards,
>
> Venkat.
>
>
>> Greetings!!!
>>
>>
>> [revert commit 83b3836bf83f09beea5f592b126cfdd1bc921e48] [mainline]
>> [6.8.0-rc3]kernel BUG at arch/powerpc/platforms/pseries/iommu.c:100!
>>
>>
>> Reverting below commit id issue is not seen.
>>
>> 83b3836bf83f09beea5f592b126cfdd1bc921e48
>>       iommu: Allow ops->default_domain to work when !CONFIG_IOMMU_DMA
>>
>>
>> Traces:
>>
>>
>> KernelBug: Kernel bug in state 'None': kernel BUG at
>> arch/powerpc/platforms/pseries/iommu.c:100!
>> [ 7843.148980] Oops: Exception in kernel mode, sig: 5 [#1]
>> [ 7843.148984] LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=8192 NUMA pSeries
>> [ 7843.148988] Modules linked in: nft_compat nf_tables libcrc32c
>> nfnetlink bridge stp llc tls sit tunnel4 ip_tunnel nvram rpadlpar_io
>> rpaphp xsk_diag rfkill binfmt_misc mlx5_ib ib_uverbs ib_core
>> pseries_rng drm drm_panel_orientation_quirks ext4 mbcache jbd2
>> dm_service_time sd_mod t10_pi crc64_rocksoft_generic crc64_rocksoft
>> crc64 sg ibmvfc scsi_transport_fc ibmveth mlx5_core mlxfw vmx_crypto
>> psample dm_multipath dm_mirror dm_region_hash dm_log dm_mod fuse
>> [last unloaded: tls]
>> [ 7843.149041] CPU: 17 PID: 218444 Comm: drmgr Kdump: loaded Tainted:
>> G          I        6.8.0-rc3-autotest-g99bd3cb0d12e #1
>> [ 7843.149047] Hardware name: IBM,9080-HEX POWER10 (raw) 0x800200
>> 0xf000006 of:IBM,FW1060.00 (NH1060_016) hv:phyp pSeries
>> [ 7843.149051] NIP:  c0000000000ff4d4 LR: c0000000000ff4cc CTR:
>> 0000000000000000
>> [ 7843.149055] REGS: c0000013aed5f840 TRAP: 0700   Tainted:
>> G          I         (6.8.0-rc3-autotest-g99bd3cb0d12e)
>> [ 7843.149060] MSR:  8000000000029033 <SF,EE,ME,IR,DR,RI,LE>  CR:
>> 44002402  XER: 20040000
>> [ 7843.149069] CFAR: c000000000a0d170 IRQMASK: 0
>> [ 7843.149069] GPR00: c0000000000ff4cc c0000013aed5fae0
>> c000000001512700 c0000013aa362138
>> [ 7843.149069] GPR04: 0000000000000000 0000000000000000
>> 0000000000000000 0000000119c8afd0
>> [ 7843.149069] GPR08: 0000000000000000 c000001284442b00
>> 0000000000000001 0000000000001003
>> [ 7843.149069] GPR12: 0000000300000000 c0000018ffff2f00
>> 0000000000000000 0000000000000000
>> [ 7843.149069] GPR16: 0000000000000000 0000000000000000
>> 0000000000000000 0000000000000000
>> [ 7843.149069] GPR20: 0000000000000000 0000000000000000
>> 0000000000000000 0000000000000000
>> [ 7843.149069] GPR24: c0000013aed5fc40 0000000000000002
>> 0000000000000000 c000000002757d90
>> [ 7843.149069] GPR28: c0000000000ff440 c000000002757cb8
>> c00000183799c1a0 c0000013aa362b00
>> [ 7843.149112] NIP [c0000000000ff4d4] iommu_reconfig_notifier+0x94/0x200
>> [ 7843.149123] LR [c0000000000ff4cc] iommu_reconfig_notifier+0x8c/0x200
>> [ 7843.149129] Call Trace:
>> [ 7843.149131] [c0000013aed5fae0] [c0000000000ff4cc]
>> iommu_reconfig_notifier+0x8c/0x200 (unreliable)
>> [ 7843.149138] [c0000013aed5fb10] [c0000000001a27b0]
>> notifier_call_chain+0xb8/0x19c
>> [ 7843.149146] [c0000013aed5fb70] [c0000000001a2a78]
>> blocking_notifier_call_chain+0x64/0x98
>> [ 7843.149152] [c0000013aed5fbb0] [c000000000c4a898]
>> of_reconfig_notify+0x44/0xdc
>> [ 7843.149160] [c0000013aed5fc20] [c000000000c4add4]
>> of_detach_node+0x78/0xb0
>> [ 7843.149165] [c0000013aed5fc70] [c0000000000f96a8]
>> ofdt_write.part.0+0x86c/0xbb8
>> [ 7843.149171] [c0000013aed5fce0] [c00000000069b4bc]
>> proc_reg_write+0xf4/0x150
>> [ 7843.149178] [c0000013aed5fd10] [c0000000005bfeb4]
>> vfs_write+0xf8/0x488
>> [ 7843.149184] [c0000013aed5fdc0] [c0000000005c0570]
>> ksys_write+0x84/0x140
>> [ 7843.149189] [c0000013aed5fe10] [c000000000033358]
>> system_call_exception+0x138/0x330
>> [ 7843.149196] [c0000013aed5fe50] [c00000000000d05c]
>> system_call_vectored_common+0x15c/0x2ec
>> [ 7843.149203] --- interrupt: 3000 at 0x20000433acb4
>> [ 7843.149208] NIP:  000020000433acb4 LR: 0000000000000000 CTR:
>> 0000000000000000
>> [ 7843.149212] REGS: c0000013aed5fe80 TRAP: 3000   Tainted:
>> G          I         (6.8.0-rc3-autotest-g99bd3cb0d12e)
>> [ 7843.149217] MSR:  800000000280f033
>> <SF,VEC,VSX,EE,PR,FP,ME,IR,DR,RI,LE>  CR: 42002408  XER: 00000000
>> [ 7843.149227] IRQMASK: 0
>> [ 7843.149227] GPR00: 0000000000000004 00007fffcde2d2c0
>> 000000013a707f00 0000000000000006
>> [ 7843.149227] GPR04: 00007fffcde2d368 0000000000000020
>> 0000000000000000 0000000000000001
>> [ 7843.149227] GPR08: 0000000000000020 0000000000000000
>> 0000000000000000 0000000000000000
>> [ 7843.149227] GPR12: 0000000000000000 000020000403b1e0
>> 000000013a6df668 0000000000000006
>> [ 7843.149227] GPR16: 0000000000000000 0000000000000002
>> 0000000000000004 0000000000000005
>> [ 7843.149227] GPR20: 000000013a700018 000000013a6df360
>> 000000013a6dcb20 000000013a6dd918
>> [ 7843.149227] GPR24: 000000013a6db178 00000001722028c8
>> 00007fffcde2d7f8 00000001722028c8
>> [ 7843.149227] GPR28: 000000013a6dc340 00007fffcde2d368
>> 0000000000000006 0000000000000020
>> [ 7843.149268] NIP [000020000433acb4] 0x20000433acb4
>> [ 7843.149271] LR [0000000000000000] 0x0
>> [ 7843.149274] --- interrupt: 3000
>> [ 7843.149277] Code: 4082016c 2c3f0000 41820060 ebff0028 2c3f0000
>> 41820054 e87f0018 2c230000 41820014 4890dc75 60000000 e93f0018
>> <0b090000> e87f0020 2c230000 4182000c
>> [ 7843.149292] ---[ end trace 0000000000000000 ]---
>>
>>
>> Regards,
>> Venkat.

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