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=?utf-8?B?Qm9Cc29vMmU2Z2tkc1FsQU8rZEVPM0cvM3Y3cjFLdGlaVGlJZ0YwazhpenBM?= =?utf-8?B?eFBtSFg1aXlSbWw0SlBrZktVa1RlOG1BSHNXbUhPd05KYzYvOUxLWmtvblA2?= =?utf-8?B?eDByVnB1cXBzTTBzZXQ0L0R6eFhDczA2bVRxQ2JMYlFFWXN5TXF1T0t4QVlT?= =?utf-8?B?RnZyT3V0Szk2ZUhtamRkcWt6eTFyU0ErZVFzTmlETXZGc3dPRkxCK05iaHdW?= =?utf-8?B?U2xwRlg1d29Qb0tIc0srUlZsc0p6bzNSd2VpbmZEQXJwb2RaK0I0RHZiK0VW?= =?utf-8?B?ajlLOFV0ZXU3b05reVZXbytVa1FTWitiM2xTVVpFbncxSHdkcU92UXNVdVBp?= =?utf-8?B?Z1E9PQ==?= X-OriginatorOrg: siemens.com X-MS-Exchange-CrossTenant-Network-Message-Id: 8e1fa15c-25f1-4a2d-2f8c-08dc22f4cd5a X-MS-Exchange-CrossTenant-AuthSource: AS4PR10MB6181.EURPRD10.PROD.OUTLOOK.COM X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 01 Feb 2024 07:09:59.3483 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 38ae3bcd-9579-4fd4-adda-b42e1495d55a X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: lr8sfoW0YW/vIsSnNRSgO7aNX/17Tgs3VJVlXwvlsSk8bL34z2ZSuBBcch+fBRjs2fckr02YFCTx8zkLaS82ZA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: PAVPR10MB7442 On 31.01.24 08:25, JerryJun wrote: > yet， you just do make in the project to product the binary of oop-test, run kill_test.sh , and finally wait kernel oop . > we get the same results of kernel oop in the qemu-amd64, which use the config from xenomai-images ,"https://source.denx.de/Xenomai/xenomai-images/-/blob/master/recipes-kernel/linux/files/amd64_defconfig?ref_type=heads", as follow. > [ 6191.671953] BUG: kernel NULL pointer dereference, address: 0000000000000000 > [ 6191.671955] #PF: supervisor instruction fetch in kernel mode > [ 6191.671956] #PF: error_code(0x0010) - not-present page > [ 6191.671956] PGD 0 P4D 0 > [ 6191.671958] Oops: 0010 [#1] PREEMPT SMP PTI IRQ_PIPELINE > [ 6191.671959] CPU: 3 PID: 7047 Comm: oop-test Kdump: loaded Not tainted 5.10.199-devo-3.2.4-20240130 #1 > [ 6191.671960] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-2 04/01/2014 > [ 6191.671961] IRQ stage: Linux > [ 6191.671961] RIP: 0010:0x0 > [ 6191.671962] Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6. > [ 6191.671962] RSP: 0018:ffffc90000118f80 EFLAGS: 00010246 > [ 6191.671963] RAX: 0000000000000000 RBX: ffff888108d3d730 RCX: 0000000000000000 > [ 6191.671964] RDX: ffff888108d3d738 RSI: ffffffff82516284 RDI: ffff888108d3d730 > [ 6191.671965] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001 > [ 6191.671965] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 > [ 6191.671966] R13: 0000000000000018 R14: ffffffff811d37e0 R15: 0000000000000000 > [ 6191.671967] FS:  00007fc6e83ea780(0000) GS:ffff88813bd80000(0000) knlGS:0000000000000000 > [ 6191.671967] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 6191.671968] CR2: ffffffffffffffd6 CR3: 0000000106750005 CR4: 0000000000170ee0 > [ 6191.671968] Call Trace: > [ 6191.671968]   > [ 6191.671969]  ? show_trace_log_lvl+0x1c2/0x2c9 > [ 6191.671969]  ? irq_work_single+0x42/0x80 > [ 6191.671969]  ? __die_body.cold+0x8/0xd > [ 6191.671970]  ? no_context+0x13a/0x270 > [ 6191.671970]  ? exc_page_fault+0x6f/0x200 > [ 6191.671970]  ? asm_exc_page_fault+0x1e/0x30 > [ 6191.671970]  ? handle_oob_irq+0x90/0x90 > [ 6191.671971]  irq_work_single+0x42/0x80 > [ 6191.671971]  irq_work_run_list+0x2d/0x40 > [ 6191.671971]  irq_work_run+0x26/0x40 > [ 6191.671972]  inband_work_interrupt+0xa/0x20 > [ 6191.671972]  handle_synthetic_irq+0xb1/0x210 > [ 6191.671972]  asm_call_irq_on_stack+0x12/0x20 > [ 6191.671973]   > [ 6191.671973]  arch_do_IRQ_pipelined+0x15d/0x2a0 > [ 6191.671973]  sync_current_irq_stage+0x157/0x1f0 > [ 6191.671974]  __inband_irq_enable+0x4b/0x70 > [ 6191.671974]  _raw_spin_unlock_irqrestore+0x35/0x70 > [ 6191.671974]  __set_cpus_allowed_ptr+0xbf/0x230 > [ 6191.671975]  sched_setaffinity+0x383/0x6b0 > [ 6191.671975]  __x64_sys_sched_setaffinity+0x45/0x80 > [ 6191.671975]  do_syscall_64+0x39/0x50 > [ 6191.671978]  entry_SYSCALL_64_after_hwframe+0x62/0xc7 > [ 6191.671979] RIP: 0033:0x7fc6e84d6617 > [ 6191.671979] Code: 1f 40 00 48 8b 15 79 c8 0e 00 f7 d8 41 b9 ff ff ff ff 64 89 02 44 89 c8 c3 66 2e 0f 1f 84 00 00 00 00 00 b8 cb 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 29 41 89 c0 83 f8 ff 74 18 64 c7 04 25 38 00 > [ 6191.671980] RSP: 002b:00007ffd574dfde8 EFLAGS: 00000206 ORIG_RAX: 00000000000000cb > [ 6191.671981] RAX: ffffffffffffffda RBX: 00007fc6e7b985c8 RCX: 00007fc6e84d6617 > [ 6191.671982] RDX: 00007fc6e7b985f0 RSI: 0000000000000080 RDI: 0000000000001b8d > [ 6191.671982] RBP: 00007ffd574dfe70 R08: 00007fc6e83ea780 R09: 00000000ffffffff > [ 6191.671983] R10: fffffffffffffdca R11: 0000000000000206 R12: 000055a818eb61c0 > [ 6191.671983] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 > [ 6191.671984] Modules linked in: > [ 6191.671985] CR2: 0000000000000000 > Okay... that is "good" news - looking for some time slot to reproduce and debug myself now. Jan -- Siemens AG, Technology Linux Expert Center