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SubjectRe: [LKP] [x86/pci] 7ffb31888c: PANIC:early_exception
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On 09/19/2018 09:53 PM, Pu Wen wrote:
> On 2018/9/19 11:19, kernel test robot wrote:
>> [ 0.800215] AGP: No AGP bridge found
>> PANIC: early exception 0xe3 IP 10:ffffffff8294623f error 0 cr2 0x0
>> [ 0.815262] CPU: 0 PID: 0 Comm: swapper Not tainted 4.19.0-rc2-00018-g7ffb318 #1
>> [ 0.826860] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
>> [ 0.839894] RIP: 0010:early_is_amd_nb+0x30/0x4b
>> [ 0.846986] Code: 15 07 3e c8 ff 0f b7 cf 48 c7 c0 c0 6a 01 82 80 fa 02 74 13 80 fa 09 48 c7 c0 20 69 01 82 ba 00 00 00 00 48 0f 45 c2 c1 ef 10 <8b> 10 85 d2 74 0f 39 ca 75 05 39 78 04 74 09 48 83 c0 20 eb eb 31
>> [ 0.876321] RSP: 0000:ffffffff82403e38 EFLAGS: 00010017 ORIG_RAX: 0000000000000000
>> [ 0.888131] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 000000000000ffff
>> [ 0.899187] RDX: 0000000000000000 RSI: 000000000000c000 RDI: 000000000000ffff
>> [ 0.910233] RBP: 0000000000000018 R08: 0000000000000002 R09: 0000000000000000
>> [ 0.921388] R10: ffffffff829ecc40 R11: ffffffff82aeed87 R12: 0000000000000000
>> [ 0.932476] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
>> [ 0.943658] FS: 0000000000000000(0000) GS:ffffffff82909000(0000) knlGS:0000000000000000
>> [ 0.956271] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>> [ 0.965216] CR2: 0000000000000000 CR3: 00000000029a2000 CR4: 00000000000006a0
>> [ 0.976358] Call Trace:
>> [ 0.980238] ? early_gart_iommu_check+0xef/0x2c5
>> [ 0.987493] ? setup_arch+0x4fa/0xc67
>> [ 0.993231] ? printk+0x52/0x6e
>> [ 0.998157] ? start_kernel+0x6e/0x4dc
>> [ 1.004044] ? load_ucode_bsp+0x42/0x12e
>> [ 1.010145] ? secondary_startup_64+0xa4/0xb0
>> BUG: kernel hang in boot stage
>>
>> Elapsed time: 700
>>
>> #!/bin/bash
>>
>>
>>
>> To reproduce:
>>
>> git clone https://github.com/intel/lkp-tests.git
>> cd lkp-tests
>> bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email
> I cannot reproduce this panic on Hygon Dhyana platform. I tired lkp-tests
> both in Ubuntu 16.04 (with gcc-5) and Ubuntu 18.04 (with gcc-7).
> What kind of host do you use to run the qemu? A Intel one or AMD one?
It's a Intel one,

model: Nehalem-EX
memory: 224G
nr_node: 4
nr_cpu: 64
nr_socket: 4
brand: Intel(R) Xeon(R) CPU X7560 @ 2.27GHz

Best Regards,
Rong Chen

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