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Message-ID: <722477bcc461238f96c3b038b2e3379ee49efdac.camel@mengyan1223.wang>
Date: Mon, 20 Dec 2021 17:04:11 +0800
From: Xi Ruoyao <xry111@...gyan1223.wang>
To: Huacai Chen <chenhuacai@...ngson.cn>,
Arnd Bergmann <arnd@...db.de>,
Andy Lutomirski <luto@...nel.org>,
Thomas Gleixner <tglx@...utronix.de>,
Peter Zijlstra <peterz@...radead.org>,
Andrew Morton <akpm@...ux-foundation.org>,
David Airlie <airlied@...ux.ie>,
Jonathan Corbet <corbet@....net>,
Linus Torvalds <torvalds@...ux-foundation.org>
Cc: linux-arch@...r.kernel.org, linux-doc@...r.kernel.org,
linux-kernel@...r.kernel.org, Xuefeng Li <lixuefeng@...ngson.cn>,
Yanteng Si <siyanteng@...ngson.cn>,
Huacai Chen <chenhuacai@...il.com>,
Jiaxun Yang <jiaxun.yang@...goat.com>
Subject: Re: [PATCH V5 00/22] arch: Add basic LoongArch support
On Wed, 2021-10-13 at 14:36 +0800, Huacai Chen wrote:
> LoongArch is a new RISC ISA, which is a bit like MIPS or RISC-V.
> LoongArch includes a reduced 32-bit version (LA32R), a standard 32-bit
> version (LA32S) and a 64-bit version (LA64). LoongArch use ACPI as its
> boot protocol LoongArch-specific interrupt controllers (similar to
> APIC)
> are already added in the next revision of ACPI Specification (current
> revision is 6.4).
>
> This patchset is adding basic LoongArch support in mainline kernel, we
> can see a complete snapshot here:
> https://github.com/loongson/linux/tree/loongarch-next
Hi Huacai,
The snapshot panics on my system under high pressure (building and
testing GCC). The panic message is pasted, but it's kind of broken up
likely because multiple CPU cores were outputing to the serial console
simutaniously.
The config is attached. I'm not sure the reason of the panic (bug in
the patches or bug in mainline kernel?) Do you have some pointers to
diagnostic and fix the issue?
[ 5391.004745] CPU 1 Unable to handle kernel paging request at virtual address 000000000040007e, era == 90000000003aa07c, ra == 90000000003aa84c
[ 5391.017392] Oops[#1]:
[ 5391.019657] CPU: 1 PID: 629589 Comm: as Not tainted 5.16.0-rc5 #1
[ 5391.025712] Hardware name: Loongson LM-LS3A5000-7A1000-1w-V01-pc_A2101/LM-LS3A5000-7A1000-1w-V01-pc_A2101, BIOS KL.4.1H.LM.D.017.210611.R 06/11/2021
[ 5391.032696] ------------[ cut here ]------------
[ 5391.038939] $ 0 : 0000000000000000 90000000003aa84c 900000011c62c000 900000011c62fa90
[ 5391.043524] WARNING: CPU: 2 PID: 629596 at mm/slub.c:2111 get_partial_node.part.0+0x2cc/0x328
[ 5391.051483] $ 4 :
[ 5391.059953] Modules linked in:
[ 5391.059953] 9000000100070700 0000000000000dc0
[ 5391.062031] nls_cp936
[ 5391.065056] ffffffffffffffff
[ 5391.069465] vfat
[ 5391.071799] 90000000003d24cc
[ 5391.074738] fat
[ 5391.076641]
[ 5391.079580] amdgpu
[ 5391.081396] $ 8 :
[ 5391.082867] snd_hda_codec_generic
[ 5391.084942] 900000000680a6b0
[ 5391.087018] ledtrig_audio
[ 5391.090390] 0000000000000000
[ 5391.093329] led_class
[ 5391.096010] 0000000000000001
[ 5391.098949] snd_hda_intel
[ 5391.101283] 0000000000000038
[ 5391.104222] snd_intel_dspcfg
[ 5391.106902]
[ 5391.109841] snd_hda_codec
[ 5391.112781] $12 :
[ 5391.114252] uas
[ 5391.116931] 0000000000000070
[ 5391.119006] snd_hda_core
[ 5391.120822] 000000003b724c81
[ 5391.123763] drm_ttm_helper
[ 5391.126355] 0000000000000000
[ 5391.129295] ttm
[ 5391.132061] 000000000040000e
[ 5391.135001] snd_pcm
[ 5391.136817]
[ 5391.139756] r8169
[ 5391.141918] $16 :
[ 5391.143388] gpu_sched
[ 5391.145378] 90000001000051d1
[ 5391.147453] snd_timer
[ 5391.149788] 0000000000000001
[ 5391.152727] usb_storage
[ 5391.155062] 00000001ffff7fff
[ 5391.158002] drm_kms_helper
[ 5391.160509] ffffffff80808000
[ 5391.163448] snd
[ 5391.166215]
[ 5391.169155] realtek
[ 5391.170971] $20 :
[ 5391.172442] syscopyarea
[ 5391.174603] fffffffffefef000
[ 5391.176679] mdio_devres
[ 5391.179186] 0000000000000020
[ 5391.182125] sysfillrect
[ 5391.184632] 00000000000000b4
[ 5391.187572] soundcore
[ 5391.190079] 900000047c7ed748
[ 5391.193019] sysimgblt
[ 5391.195352]
[ 5391.198291] fb_sys_fops
[ 5391.200626] $24 :
[ 5391.202097] libphy
[ 5391.204604] 0000000000000001
[ 5391.206680] drm
[ 5391.208756] 9000000100070700
[ 5391.211696] efivarfs
[ 5391.213512] 900000000680a6b0
[ 5391.216452]
[ 5391.218701] 9000000000c6c880
[ 5391.221641] CPU: 2 PID: 629596 Comm: cc1plus Not tainted 5.16.0-rc5 #1
[ 5391.223110]
[ 5391.226050] Hardware name: Loongson LM-LS3A5000-7A1000-1w-V01-pc_A2101/LM-LS3A5000-7A1000-1w-V01-pc_A2101, BIOS KL.4.1H.LM.D.017.210611.R 06/11/2021
[ 5391.232532] $28 :
[ 5391.234003] Stack :
[ 5391.247223] 0000000000000dc0
[ 5391.249299]
[ 5391.251375] ffffffffffffffff
[ 5391.254315] Call Trace:
[ 5391.255785] 0000000000000001
[ 5391.258725]
[ 5391.261146] fffffffffffffffe
[ 5391.264085]
[ 5391.265555]
[ 5391.268494] ---[ end trace e773af33d156dcec ]---
[ 5391.269965] era : 90000000003aa07c ___slab_alloc+0x3a0/0x6dc
[ 5391.281807] ra : 90000000003aa84c __slab_alloc.constprop.0+0x20/0x64
[ 5391.288387] CSR crmd: 000000b0
[ 5391.288399] CSR prmd: 00000000
[ 5391.291520] CSR euen: 00000001
[ 5391.294641] CSR ecfg: 00071c1c
[ 5391.297766] CSR estat: 00010000
[ 5391.304107] ExcCode : 1 (SubCode 0)
[ 5391.307577] BadVA : 000000000040007e
[ 5391.311134] PrId : 0014c011 (Loongson-64bit)
[ 5391.315469] Modules linked in: nls_cp936 vfat fat amdgpu snd_hda_codec_generic ledtrig_audio led_class snd_hda_intel snd_intel_dspcfg snd_hda_codec uas snd_hda_core drm_ttm_helper ttm snd_pcm r8169 gpu_sched snd_timer usb_storage drm_kms_helper snd realtek syscopyarea mdio_devres sysfillrect soundcore sysimgblt fb_sys_fops libphy drm efivarfs
[ 5391.345683] Process as (pid: 629589, threadinfo=00000000eb5d984e, task=0000000056698aa5)
[ 5391.353779] Stack : 00000000000000b4 0000000000000000 90000000003d24cc 900000011e993fc8
[ 5391.361740] 00007ffff0cb0000 900000047fffc000 00007ffff0caffff 900000047c7ed748
[ 5391.369697] 0000000000000dc0 0000000000000000 000000000000002f 000000000000000b
[ 5391.377656] 900000011c62fd00 00000001ffff7fff 900000010c3dd920 9000000102ef6880
[ 5391.385619] 900000011c62fb88 00007ffffbbbaef8 0000000000000dc0 90000000003d24cc
[ 5391.393582] 9000000000af318c 9000000100070700 0000000000000dc0 900000010cf86ec0
[ 5391.401544] 0000000000000000 9000000000cf0ff8 00007ffffbbbaca0 90000000003aa84c
[ 5391.409508] 900000010cf86ec0 0000000000000000 9000000000cf0ff8 90000000003ac72c
[ 5391.417469] 9000000102f3e418 00007ffff0ce1200 900000011c62fd00 00007ffff0cdf3a8
[ 5391.425430] 00007ffffbbbaee7 fffffffffffff000 0000000000008000 90000001226c6dc0
[ 5391.433390] ...
[ 5391.435816] Call Trace:
[ 5391.435818]
[ 5391.439714] [<90000000003d24cc>] __alloc_file+0x30/0xcc
[ 5391.444913] [<90000000003d24cc>] __alloc_file+0x30/0xcc
[ 5391.450109] [<90000000003aa84c>] __slab_alloc.constprop.0+0x20/0x64
[ 5391.456346] [<90000000003ac72c>] kmem_cache_alloc+0x124/0x59c
[ 5391.462063] [<90000000003d24cc>] __alloc_file+0x30/0xcc
[ 5391.467264] [<90000000003d29f4>] alloc_empty_file+0x58/0x104
[ 5391.472891] [<90000000003e2594>] path_openat+0x50/0xda0
[ 5391.478090] [<9000000000326270>] filemap_map_pages+0x324/0x460
[ 5391.483896] [<90000000003e4124>] do_filp_open+0xf4/0x134
[ 5391.489182] [<90000000003f4d40>] alloc_fd+0x60/0x220
[ 5391.494122] [<90000000003ce368>] do_sys_openat2+0xb8/0x184
[ 5391.499582] [<90000000003ce798>] sys_openat+0x38/0x94
[ 5391.504611] [<90000000008e2b50>] do_syscall+0x88/0xdc
[ 5391.509640] [<90000000002015e4>] handle_syscall+0xc4/0x15c
[ 5391.515108]
[ 5391.516590] Code: ec28c023 31ec28c0 0c31ec28 <380c31ec> ad380c31 01ad380c c101ad38 02c101ad 4d02c101
[ 5391.526294]
[ 5391.527830] ---[ end trace e773af33d156dced ]---
[ 5391.532431] note: as[629589] exited with preempt_count 1
[ 5391.537751] CPU 1 Unable to handle kernel paging request at virtual address 0000000000000122, era == 90000000003a967c, ra == 90000000003a96b4
[ 5391.550374] Oops[#2]:
[ 5391.552628] CPU: 1 PID: 17 Comm: ksoftirqd/1 Tainted: G D W 5.16.0-rc5 #1
[ 5391.560496] Hardware name: Loongson LM-LS3A5000-7A1000-1w-V01-pc_A2101/LM-LS3A5000-7A1000-1w-V01-pc_A2101, BIOS KL.4.1H.LM.D.017.210611.R 06/11/2021
[ 5391.573719] $ 0 : 0000000000000000 90000000003a96b4 90000001001d8000 90000001001dbbf0
[ 5391.581678] $ 4 : 00000000000000b4 0000000000000000 0000000000000001 900000011c6f3d00
[ 5391.589635] $ 8 : 0000000000000001 900000000027d7a8 0000000000000000 90000000008f4864
[ 5391.597591] $12 : 90000001000051d0 90000001000051d0 900000047c6c5990 000000017fffffff
[ 5391.605548] $16 : 0000000000000002 0000000000400040 0000000000000001 00000000000000b0
[ 5391.613504] $20 : 000000008040003f 9000000006805dc0 0000000080400040 900000047c6c5988
[ 5391.621461] $24 : 0000000000000000 00000000000000b4 9000000100070700 000000000000ffff
[ 5391.629417] $28 : 0000000000000001 fffffffffffffffe 90000001000051c0 0000000000000122
[ 5391.637374] era : 90000000003a967c __unfreeze_partials+0x50/0x250
[ 5391.643605] ra : 90000000003a96b4 __unfreeze_partials+0x88/0x250
[ 5391.649830] CSR crmd: 000000b0
[ 5391.649831] CSR prmd: 00000000
[ 5391.652944] CSR euen: 00000000
[ 5391.656057] CSR ecfg: 00071c1c
[ 5391.659171] CSR estat: 00010000
[ 5391.665483] ExcCode : 1 (SubCode 0)
[ 5391.668942] BadVA : 0000000000000122
[ 5391.672487] PrId : 0014c011 (Loongson-64bit)
[ 5391.676810] Modules linked in: nls_cp936 vfat fat amdgpu snd_hda_codec_generic ledtrig_audio led_class snd_hda_intel snd_intel_dspcfg snd_hda_codec uas snd_hda_core drm_ttm_helper ttm snd_pcm r8169 gpu_sched snd_timer usb_storage drm_kms_helper snd realtek syscopyarea mdio_devres sysfillrect soundcore sysimgblt fb_sys_fops libphy drm efivarfs
[ 5391.707003] Process ksoftirqd/1 (pid: 17, threadinfo=00000000b9785391, task=0000000076f73243)
[ 5391.715475] Stack : 90000001001dbca8 900000047c7c6f00 900000010cf86ec0 9000000000000000
[ 5391.723433] fffffffffffffffc 9000000000ceddf8 90000001001dbcb0 000000017fffffff
[ 5391.731390] 9000000100070700 90000000003a5ef8 0000000000000000 900000000027d7d8
[ 5391.739346] 9000000000be5640 9000000000ceddf8 0000000000000008 00000000011c6f00
[ 5391.747302] 900000000027d7a8 900000047c7c6f00 9000000100070700 900000011c6f3d00
[ 5391.755259] 0000000000000001 90000000003ada0c 9000000006806a38 900000011c6f3d00
[ 5391.763216] 00000000000000b4 9000000000be5640 0000000000000000 9000000006806a38
[ 5391.771172] 0000000000000006 90000001001dbd08 000000000000000a 0000000000000007
[ 5391.779128] 90000000068069c0 900000000027d7a8 90000001187d2310 900000011c6f1500
[ 5391.787085] 900000010d355b00 000000000000005d 90000001000b1e80 9000000000aec0c8
[ 5391.795042] ...
[ 5391.797465] Call Trace:
[ 5391.797467]
[ 5391.801360] [<90000000003a5ef8>] memcg_slab_free_hook.part.0+0x144/0x288
[ 5391.808019] [<900000000027d7d8>] rcu_core+0x290/0x6d8
[ 5391.813038] [<900000000027d7a8>] rcu_core+0x260/0x6d8
[ 5391.818055] [<90000000003ada0c>] kmem_cache_free+0x168/0x368
[ 5391.823676] [<900000000027d7a8>] rcu_core+0x260/0x6d8
[ 5391.828693] [<90000000008ef2bc>] __do_softirq+0x11c/0x2e8
[ 5391.834057] [<90000000002132ac>] run_ksoftirqd+0x44/0x58
[ 5391.839335] [<9000000000235ec4>] smpboot_thread_fn+0x190/0x270
[ 5391.845130] [<9000000000235d34>] smpboot_thread_fn+0x0/0x270
[ 5391.850749] [<90000000002315f4>] kthread+0x180/0x1a0
[ 5391.855680] [<9000000000231474>] kthread+0x0/0x1a0
[ 5391.860436] [<9000000000201708>] ret_from_kernel_thread+0xc/0xa4
[ 5391.866403]
[ 5391.867875] Code: ec02bff8 03ec02bf 0003ec02 <260003ec> c4260003 03c42600 1503c426 001503c4 f7001503
[ 5391.877565]
[ 5391.879046] ---[ end trace e773af33d156dcee ]---
[ 5391.883632] Kernel panic - not syncing: Fatal exception in interrupt
[ 5391.889942] ------------[ cut here ]------------
[ 5391.894525] WARNING: CPU: 1 PID: 17 at kernel/smp.c:894 smp_call_function_many_cond+0x3b0/0x3c0
[ 5391.903173] Modules linked in: nls_cp936 vfat fat amdgpu snd_hda_codec_generic ledtrig_audio led_class snd_hda_intel snd_intel_dspcfg snd_hda_codec uas snd_hda_core drm_ttm_helper ttm snd_pcm r8169 gpu_sched snd_timer usb_storage drm_kms_helper snd realtek syscopyarea mdio_devres sysfillrect soundcore sysimgblt fb_sys_fops libphy drm efivarfs
[ 5391.933362] CPU: 1 PID: 17 Comm: ksoftirqd/1 Tainted: G D W 5.16.0-rc5 #1
[ 5391.941228] Hardware name: Loongson LM-LS3A5000-7A1000-1w-V01-pc_A2101/LM-LS3A5000-7A1000-1w-V01-pc_A2101, BIOS KL.4.1H.LM.D.017.210611.R 06/11/2021
[ 5391.954451] Stack :
[ 5391.956528] Call Trace:
[ 5391.956529]
[ 5391.960422]
[ 5391.961893] ---[ end trace e773af33d156dcef ]---
[ 5391.966480] ---[ end Kernel panic - not syncing: Fatal exception in interrupt ]---
--
Xi Ruoyao <xry111@...gyan1223.wang>
School of Aerospace Science and Technology, Xidian University
View attachment "config-5.16.0-rc5" of type "text/plain" (90825 bytes)
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