Hi, Ruoyao, On Mon, Dec 20, 2021 at 5:04 PM Xi Ruoyao <xry111@xxxxxxxxxxxxxxxx> wrote: > > 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 ]--- We also found that the latest github kernel has some stable issues, and we are investigating. Huacai > > -- > Xi Ruoyao <xry111@xxxxxxxxxxxxxxxx> > School of Aerospace Science and Technology, Xidian University
