Received: by 2002:ab2:7444:0:b0:1ef:eae8:a797 with SMTP id f4csp47693lqn; Fri, 15 Mar 2024 12:21:45 -0700 (PDT) X-Forwarded-Encrypted: i=3; AJvYcCXQN0+G+iY52gRaPgYCSXOwpUKTev/L9/TnPcvYs+0HjeEyjDtJh5BRfLJ/aHqyMmKr4SinslANJNrTW8698KQyCky0jalDqlyeXuTRiQ== X-Google-Smtp-Source: AGHT+IEwbbPnhfFpVrQQFedGehgcz/J8QcXkIMuKNUYZPQm8vVPEwBDJhUCHik9CgKeCmy4+5F8W X-Received: by 2002:a05:6402:3606:b0:568:a5d6:b092 with SMTP id el6-20020a056402360600b00568a5d6b092mr2876038edb.36.1710530505692; Fri, 15 Mar 2024 12:21:45 -0700 (PDT) ARC-Seal: i=2; a=rsa-sha256; t=1710530505; cv=pass; d=google.com; s=arc-20160816; b=lZYEGSUVJnwhx+VROftE1FXS4Puc6rYfGUxXKP26vYJICZysI7/wBzkRNY5gBb0har RR7vEEwI14dhp/QiKcwZmTscoKZAy+DOs9JzoVqPimaPB1i0vuXwbpXjljine+57vITg g2UKzNz3FwkZTw5s8x2PTmMZToBs3xz4o1sp/kTBRrh7CDzlea8fxWJiJfY0xJnqJFSK UsNQDgIt949hkkwVD6VlMYSmRa1pdR+oA1z/FZoRvRyjNrMqZ4qXQ2h0As8x/9r6eWiE tBrhjtAsXNt41yGDW0FdUMT+RC2P7ZOyUOneHYAhJ6/HhT8FyVSzqtYpVUR56/0Sxcp4 jgFQ== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=content-transfer-encoding:content-disposition:mime-version :list-unsubscribe:list-subscribe:list-id:precedence:message-id :subject:cc:to:from:date:dkim-signature; bh=kkM7je8ozv1ufmdv28yH9lmlummAlHg5602Z7+uS8A0=; fh=aZVrHIhL8YT2kuvR88GiiJ7xHNgXMayP1llBXL0lmKU=; b=LQp7XlTTdopmmXPA2XBVq6CoLj6zfECwN5eXvhhwM6fOhtgNFcLlNRVmde1Uf/fhT/ 7yKrKeMlJZyx4W5N4H6Tb9da16b0LcnvNxoqdvpQHsOKv+BK+g5ZRWwSpCIHE3tO94NX O8qx3lKLL/9C2Sw1sInTvdicvXduPz1sbUZyflGs5dMphKBqglritOb3HMDY8FzIaSFl Ii+uk0s6lEN/ZYfslTJYHf5RbR+cjVnNWLTyMnjaR3umswJA07R/1CYIeVePovjlSGZX Vu675ec3LRAZaMR+qPB2GhKDrvANpOB4a01dpf3vF3Afznmrelon0YqZn3hGJpDHFtFl M3Cw==; dara=google.com ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@redhat.com header.s=mimecast20190719 header.b=RW1LLZqY; arc=pass (i=1 spf=pass spfdomain=redhat.com dkim=pass dkdomain=redhat.com dmarc=pass fromdomain=redhat.com); spf=pass (google.com: domain of linux-kernel+bounces-104842-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.80.249 as permitted sender) smtp.mailfrom="linux-kernel+bounces-104842-linux.lists.archive=gmail.com@vger.kernel.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com Return-Path: Received: from am.mirrors.kernel.org (am.mirrors.kernel.org. [147.75.80.249]) by mx.google.com with ESMTPS id fd11-20020a056402388b00b005687da303bbsi2007588edb.429.2024.03.15.12.21.45 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 15 Mar 2024 12:21:45 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel+bounces-104842-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.80.249 as permitted sender) client-ip=147.75.80.249; Authentication-Results: mx.google.com; dkim=pass header.i=@redhat.com header.s=mimecast20190719 header.b=RW1LLZqY; arc=pass (i=1 spf=pass spfdomain=redhat.com dkim=pass dkdomain=redhat.com dmarc=pass fromdomain=redhat.com); spf=pass (google.com: domain of linux-kernel+bounces-104842-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.80.249 as permitted sender) smtp.mailfrom="linux-kernel+bounces-104842-linux.lists.archive=gmail.com@vger.kernel.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by am.mirrors.kernel.org (Postfix) with ESMTPS id BAF491F23533 for ; Fri, 15 Mar 2024 19:21:44 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 36271524D0; Fri, 15 Mar 2024 19:21:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="RW1LLZqY" Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C2D368BEC for ; Fri, 15 Mar 2024 19:21:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710530492; cv=none; b=ecn1jEYY1jsTDtV5Co2IBVZupRyg/apO7LC6SHKRoZBGv2WtLCnvwjgpKfR/8ojwwUH7hC0mkdRb6Ow7uL6GIBrfrxqbet8bfkcskwaeOD65ufcmWzSMifOw86dK2Y37XbgMLLqZy1/ePyMJpb9zhq+LZn2dyjcdcrBBZXqGNEo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710530492; c=relaxed/simple; bh=gHoQnEHvQiCaNX89bwWLhWxhmd9Dcm6C+Zvs+EQxiCQ=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition; b=kQUbWpEum+IrOLn8xPP7DAm6GWUGtFG9ELFJBea1Jm9ztDQZoWNsk5QQGra6rXEHy21JXlMUzz2uu5AtpraSvV0Vv/n4h+IxUbhzMPvvskUZarFtCdV8FFcYpxd0/EsHsMJSaaaGrmTz/NpnbTcjadXFqMrp+X7Gg5jhgem/7qU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=RW1LLZqY; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1710530487; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=kkM7je8ozv1ufmdv28yH9lmlummAlHg5602Z7+uS8A0=; b=RW1LLZqYe3XtTC/vQXXWXa6wmx2oyjMo1JPZpE+D8P54UYQUzQ5EVGUf5XhkWDPfThpTCW fMyVLUYccZ5LqJGvajehPfPiGVVaa0aeXGq2gTCHyiI5TyHx4VmqvRFFtAQttkAbNMIR8t SdFI8ir3JjA5UD9iJ12L5odbBrnIudI= Received: from mail-qv1-f70.google.com (mail-qv1-f70.google.com [209.85.219.70]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-511-6O6QMGa_O4-kJWrvomejPw-1; Fri, 15 Mar 2024 15:21:25 -0400 X-MC-Unique: 6O6QMGa_O4-kJWrvomejPw-1 Received: by mail-qv1-f70.google.com with SMTP id 6a1803df08f44-68fa064556eso20416006d6.3 for ; Fri, 15 Mar 2024 12:21:25 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1710530484; x=1711135284; h=content-transfer-encoding:content-disposition:mime-version :message-id:subject:cc:to:from:date:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=kkM7je8ozv1ufmdv28yH9lmlummAlHg5602Z7+uS8A0=; b=S2bpgrzrH0BrW0Q6JTxL8Bh70+DDeQtPvXovhqN91hE77+bI1FNBZL9YZw+xu9ncHA 6hivLGZqpdfpTlf5XZFJ8V/JykKuqYMTWi7sk+/xYPZTgtlc0k0gQnlTmM5woXYxFEB/ w8CN6xWx3+xyMukapoaoamR5T7BiJCoL0t4tjpOi91+SHH8VV6sldsIB75HL7HuNEe2s o5Zddxbgr1mlLon182F1KhDMZguepsy0UcoxtT+IA4Ja2fDDmr72xuxdxI3pgj/GYvL+ R1s+ve2N7hZLpv+tFryBghsBDb1UqRXLMq0zOLqHuXq33U5l5J1SCZxkG+MbOkzUipCs Psjg== X-Forwarded-Encrypted: i=1; AJvYcCWhXul7zSJQQ/qA4608oZ8ZQ5gtLZqqKbIH6hGnzzNnD23v1eoOEDihMcW4zHJni6ghLCNvqnNI8WXzbwUjflNE8W3Pd7ACX/4BoypA X-Gm-Message-State: AOJu0Yxy2RsIqw6L4XJz+lFSFlKwrxd1FzEIWvpzi9lFNQPqq7KW/SMd Prw1bw/j8XJ26EKKdoNSnz+P2zjDMkXhtxRyiXq3Wfo7amWvcAM9CkzmhRkVRD22NvOeSq3w32O FJiDCPHZA2Ofn1qsS7Mzs8iz5YfJMBR1Z+4gYppV4RG1CWDih+Ly2fd9C/qgqFw== X-Received: by 2002:a05:6214:971:b0:691:49d5:471 with SMTP id do17-20020a056214097100b0069149d50471mr5798805qvb.47.1710530483761; Fri, 15 Mar 2024 12:21:23 -0700 (PDT) X-Received: by 2002:a05:6214:971:b0:691:49d5:471 with SMTP id do17-20020a056214097100b0069149d50471mr5798771qvb.47.1710530482997; Fri, 15 Mar 2024 12:21:22 -0700 (PDT) Received: from thinkpad2021 ([2607:fb90:ee2a:307:2baf:9d87:8580:8fca]) by smtp.gmail.com with ESMTPSA id kj25-20020a056214529900b00690df461ecbsm2312628qvb.10.2024.03.15.12.21.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 15 Mar 2024 12:21:22 -0700 (PDT) Date: Fri, 15 Mar 2024 15:21:19 -0400 From: "John B. Wyatt IV" To: John Ogness Cc: Petr Mladek , Clark Williams , Juri Lelli , Derek Barbosa , Bruno Goncalves , "John B. Wyatt IV" , LKML , linux-rt-users Subject: NMIs reported by console_blast.sh with 6.6.20-rt25 Message-ID: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hello John, The real-time team at Red Hat is discussing backporting the rt patchset in = 6.6 to RHEL 9/Stream 9. I decided to test v6.6.20-rt25 from stable-rt with console_blast.sh. It reported similar NMIs from my testing of 6.7.0-rt6 with that high cpu count server over uart 8250; which is expected since the patc= hset is similar. One interesting thing is that 6.7.0-rt6 fully preemptive + realtime tuned p= rofile did not return any NMIs while 6.6 did with that same configuration. Another aspect I noticed during my testing. I did not set grub to start with the realtime profile at boot for this machine. When I did set it the second (and latter) NMI did not show for fully preemptive (the 3rd set at the bottom of this email).=20 Caller info was enabled. No modifications to the source code were made. I have not tested previous versions before 6.7.0-rt6 or 6.6.20-rt25; with the exception of accidently testing 6.6.10-rt19. 6.6.10 also reported NMIs during this test. If you wish to see these reports please let me know. Also, please let me know if I can help in any other way or if you want anyt= hing else tested. I will be moving to 6.8 and using BUG_ON(system_state =3D=3D SYSTEM= _RUNNING); in the scheduler next for my tests to see if the messages do not show. Link to lscpu and previous NMI reports: https://lore.kernel.org/linux-rt-users/ZdUmpblrzX0pcPjz@thinkpad2021/T/#mec= 258264be95dcba23970def7b248af0c6e942b2 ----------------------------- NMI Backtrace for 6.6.20-rt25 no forced preemption with tuned realtime prof= ile ----------------------------- [ T2614] Kernel panic - not syncing: sysrq triggered crash=0D [ C56] NMI backtrace for cpu 56=0D [ C56] Hardware name: Intel Corporation D50DNP1SBB/D50DNP1SBB, BIOS SE5C7= 411.86B.9409.D04.2212261349 12/26/2022=0D [ C56] RIP: 0010:io_serial_out (arch/x86/kernel/early_printk.c:105)=20 [ C56] Code: 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f= 44 00 00 0f b6 8f c1 00 00 00 89 d0 0f b7 57 08 d3 e6 01 f2 ee cc cc = cc cc 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90=0D All code =3D=3D=3D=3D=3D=3D=3D=3D 0: 0f 1f 00 nopl (%rax) 3: 90 nop 4: 90 nop 5: 90 nop 6: 90 nop 7: 90 nop 8: 90 nop 9: 90 nop a: 90 nop b: 90 nop c: 90 nop d: 90 nop e: 90 nop f: 90 nop 10: 90 nop 11: 90 nop 12: 90 nop 13: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 18: 0f b6 8f c1 00 00 00 movzbl 0xc1(%rdi),%ecx 1f: 89 d0 mov %edx,%eax 21: 0f b7 57 08 movzwl 0x8(%rdi),%edx 25: d3 e6 shl %cl,%esi 27: 01 f2 add %esi,%edx 29: ee out %al,(%dx) 2a:* c3 ret <-- trapping instruction 2b: cc int3 2c: cc int3 2d: cc int3 2e: cc int3 2f: 0f 1f 40 00 nopl 0x0(%rax) 33: 90 nop 34: 90 nop 35: 90 nop 36: 90 nop 37: 90 nop 38: 90 nop 39: 90 nop 3a: 90 nop 3b: 90 nop 3c: 90 nop 3d: 90 nop 3e: 90 nop 3f: 90 nop Code starting with the faulting instruction =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D 0: c3 ret 1: cc int3 2: cc int3 3: cc int3 4: cc int3 5: 0f 1f 40 00 nopl 0x0(%rax) 9: 90 nop a: 90 nop b: 90 nop c: 90 nop d: 90 nop e: 90 nop f: 90 nop 10: 90 nop 11: 90 nop 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop [ C56] RSP: 0018:ffa0000030a9fb28 EFLAGS: 00000002=0D [ C56] RAX: 000000000000005f RBX: ffffffffa6ac68c0 RCX: 0000000000000000= =0D [ C56] RDX: 00000000000003f8 RSI: 0000000000000000 RDI: ffffffffa6ac68c0= =0D [ C56] RBP: 000000000000005f R08: 303378302f623178 R09: 302b6d73615f6b72= =0D [ C56] R10: 615f6b726f665f6d R11: 6f72665f74657220 R12: ffffffffa6ac68c0= =0D [ C56] R13: ffffffffa69b9434 R14: 0000000000000000 R15: 0000000000000000= =0D [ C56] FS: 00007f4a81d54740(0000) GS:ff11003fff600000(0000) knlGS:000000= 0000000000=0D [ C56] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033=0D [ C56] CR2: 00007f4a81f30650 CR3: 000000011ea24004 CR4: 0000000000771ee0= =0D [ C56] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000= =0D [ C56] DR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400= =0D [ C56] PKRU: 55555554=0D [ C56] Call Trace:=0D [ C56] =0D [ C56] ? nmi_cpu_backtrace (lib/nmi_backtrace.c:115)=20 [ C56] ? nmi_cpu_backtrace_handler (arch/x86/kernel/apic/hw_nmi.c:47 (discr= iminator 1))=20 [ C56] ? nmi_handle (arch/x86/kernel/nmi.c:149)=20 [ C56] ? io_serial_out (arch/x86/kernel/early_printk.c:105)=20 [ C56] ? default_do_nmi (arch/x86/kernel/nmi.c:347)=20 [ C56] ? exc_nmi (arch/x86/kernel/nmi.c:538)=20 [ C56] ? end_repeat_nmi (arch/x86/entry/entry_64.S:1458)=20 [ C56] ? io_serial_out (arch/x86/kernel/early_printk.c:105)=20 [ C56] ? io_serial_out (arch/x86/kernel/early_printk.c:105)=20 [ C56] ? io_serial_out (arch/x86/kernel/early_printk.c:105)=20 [ C56] =0D [ C56] =0D [ C56] serial8250_console_putchar (./include/linux/serial_core.h:704 driver= s/tty/serial/8250/8250_port.c:3347)=20 [ C56] ? __pfx_serial8250_console_putchar (drivers/tty/serial/8250/8250_por= t.c:3343)=20 [ C56] uart_console_write (drivers/tty/serial/serial_core.c:2134)=20 [ C56] serial8250_console_write_atomic (drivers/tty/serial/8250/8250_port.c= :3628)=20 [ C56] nbcon_emit_next_record (kernel/printk/nbcon.c:940)=20 [ C56] __nbcon_atomic_flush_all (kernel/printk/nbcon.c:1192 (discriminator = 1) kernel/printk/nbcon.c:1326 (discriminator 1))=20 [ C56] vprintk_emit (kernel/printk/printk.c:2414)=20 [ C56] _printk (kernel/printk/printk.c:2474)=20 [ C56] panic (./arch/x86/include/asm/bitops.h:207 ./arch/x86/include/asm/bi= tops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kerne= l/panic.c:528 kernel/panic.c:339)=20 [ C56] ? _printk (kernel/printk/printk.c:2474)=20 [ C56] sysrq_handle_crash (drivers/tty/sysrq.c:154)=20 [ C56] __handle_sysrq (drivers/tty/sysrq.c:601)=20 [ C56] write_sysrq_trigger (drivers/tty/sysrq.c:1165)=20 [ C56] proc_reg_write (fs/proc/inode.c:340 fs/proc/inode.c:352)=20 [ C56] ? preempt_count_add (./include/linux/ftrace.h:974 (discriminator 1) = kernel/sched/core.c:5847 (discriminator 1) kernel/sched/core.c:5844 (discri= minator 1) kernel/sched/core.c:5872 (discriminator 1))=20 [ C56] vfs_write (fs/read_write.c:582)=20 [ C56] ksys_write (fs/read_write.c:637)=20 [ C56] do_syscall_64 (arch/x86/entry/common.c:51 arch/x86/entry/common.c:81= )=20 [ C56] ? do_dup2 (fs/file.c:1142)=20 [ C56] ? syscall_exit_to_user_mode (kernel/entry/common.c:299)=20 [ C56] ? do_syscall_64 (arch/x86/entry/common.c:88)=20 [ C56] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:37 ./arch/x86/in= clude/asm/irqflags.h:72 arch/x86/mm/fault.c:1513 arch/x86/mm/fault.c:1561)= =20 [ C56] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:120)=20 [ C56] RIP: 0033:0x7f4a81e5fc94=0D [ C56] Code: c7 00 16 00 00 00 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00= 00 f3 0f 1e fa 80 3d d5 76 0d 00 00 74 13 b8 01 00 00 00 0f 05 <48> 3d 00 = f0 ff ff 77 54 c3 0f 1f 00 55 48 89 e5 48 83 ec 20 48 89=0D All code =3D=3D=3D=3D=3D=3D=3D=3D 0: c7 00 16 00 00 00 movl $0x16,(%rax) 6: b8 ff ff ff ff mov $0xffffffff,%eax b: c3 ret c: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) 13: 00 00 00=20 16: f3 0f 1e fa endbr64 1a: 80 3d d5 76 0d 00 00 cmpb $0x0,0xd76d5(%rip) # 0xd76f6 21: 74 13 je 0x36 23: b8 01 00 00 00 mov $0x1,%eax 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping = instruction 30: 77 54 ja 0x86 32: c3 ret 33: 0f 1f 00 nopl (%rax) 36: 55 push %rbp 37: 48 89 e5 mov %rsp,%rbp 3a: 48 83 ec 20 sub $0x20,%rsp 3e: 48 rex.W 3f: 89 .byte 0x89 Code starting with the faulting instruction =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 54 ja 0x5c 8: c3 ret 9: 0f 1f 00 nopl (%rax) c: 55 push %rbp d: 48 89 e5 mov %rsp,%rbp 10: 48 83 ec 20 sub $0x20,%rsp 14: 48 rex.W 15: 89 .byte 0x89 [ C56] RSP: 002b:00007ffc0e13b318 EFLAGS: 00000202 ORIG_RAX: 000000000000= 0001=0D [ C56] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f4a81e5fc94= =0D [ C56] RDX: 0000000000000002 RSI: 000055a865695490 RDI: 0000000000000001= =0D [ C56] RBP: 00007ffc0e13b340 R08: 0000000000000410 R09: 0000000000000001= =0D [ C56] R10: 0000000000000004 R11: 0000000000000202 R12: 0000000000000002= =0D [ C56] R13: 000055a865695490 R14: 00007f4a81f305c0 R15: 00007f4a81f2df20= =0D [ C56] =0D [ C56] NMI backtrace for cpu 56=0D [ C56] Hardware name: Intel Corporation D50DNP1SBB/D50DNP1SBB, BIOS SE5C7= 411.86B.9409.D04.2212261349 12/26/2022=0D [ C56] RIP: 0010:io_serial_in (arch/x86/kernel/early_printk.c:100)=20 [ C56] Code: cc 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90= 0f 1f 44 00 00 0f b6 8f c1 00 00 00 0f b7 57 08 d3 e6 01 f2 ec <0f> b6 c0 = c3 cc cc cc cc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90=0D All code =3D=3D=3D=3D=3D=3D=3D=3D 0: cc int3 1: 0f 1f 40 00 nopl 0x0(%rax) 5: 90 nop 6: 90 nop 7: 90 nop 8: 90 nop 9: 90 nop a: 90 nop b: 90 nop c: 90 nop d: 90 nop e: 90 nop f: 90 nop 10: 90 nop 11: 90 nop 12: 90 nop 13: 90 nop 14: 90 nop 15: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 1a: 0f b6 8f c1 00 00 00 movzbl 0xc1(%rdi),%ecx 21: 0f b7 57 08 movzwl 0x8(%rdi),%edx 25: d3 e6 shl %cl,%esi 27: 01 f2 add %esi,%edx 29: ec in (%dx),%al 2a:* 0f b6 c0 movzbl %al,%eax <-- trapping instruction 2d: c3 ret 2e: cc int3 2f: cc int3 30: cc int3 31: cc int3 32: 0f 1f 00 nopl (%rax) 35: 90 nop 36: 90 nop 37: 90 nop 38: 90 nop 39: 90 nop 3a: 90 nop 3b: 90 nop 3c: 90 nop 3d: 90 nop 3e: 90 nop 3f: 90 nop Code starting with the faulting instruction =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D 0: 0f b6 c0 movzbl %al,%eax 3: c3 ret 4: cc int3 5: cc int3 6: cc int3 7: cc int3 8: 0f 1f 00 nopl (%rax) b: 90 nop c: 90 nop d: 90 nop e: 90 nop f: 90 nop 10: 90 nop 11: 90 nop 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop [ C56] RSP: 0018:ffa0000030a9fb00 EFLAGS: 00000002=0D [ C56] RAX: ffffffffa45cf400 RBX: 0000000000000000 RCX: 0000000000000000= =0D [ C56] RDX: 00000000000003fd RSI: 0000000000000005 RDI: ffffffffa6ac68c0= =0D [ C56] RBP: 0000000000002710 R08: 303578302f643278 R09: 302b6b726f665f6d= =0D [ C56] R10: 302b6b726f665f6d R11: 6f72665f74657220 R12: 0000000000000020= =0D [ C56] R13: ffffffffa6ac68c0 R14: 0000000000000000 R15: 0000000000000000= =0D [ C56] FS: 00007f4a81d54740(0000) GS:ff11003fff600000(0000) knlGS:000000= 0000000000=0D [ C56] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033=0D [ C56] CR2: 00007f4a81f30650 CR3: 000000011ea24004 CR4: 0000000000771ee0= =0D [ C56] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000= =0D [ C56] DR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400= =0D [ C56] PKRU: 55555554=0D [ C56] Call Trace:=0D [ C56] =0D [ C56] ? nmi_cpu_backtrace (lib/nmi_backtrace.c:115)=20 [ C56] ? nmi_cpu_backtrace_handler (arch/x86/kernel/apic/hw_nmi.c:47 (discr= iminator 1))=20 [ C56] ? nmi_handle (arch/x86/kernel/nmi.c:149)=20 [ C56] ? io_serial_in (arch/x86/kernel/early_printk.c:100)=20 [ C56] ? default_do_nmi (arch/x86/kernel/nmi.c:347)=20 [ C56] ? exc_nmi (arch/x86/kernel/nmi.c:538)=20 [ C56] ? end_repeat_nmi (arch/x86/entry/entry_64.S:1458)=20 [ C56] ? mem16_serial_out (drivers/tty/serial/8250/8250_port.c:382)=20 [ C56] ? io_serial_in (arch/x86/kernel/early_printk.c:100)=20 [ C56] ? io_serial_in (arch/x86/kernel/early_printk.c:100)=20 [ C56] ? io_serial_in (arch/x86/kernel/early_printk.c:100)=20 [ C56] =0D [ C56] =0D [ C56] wait_for_xmitr (drivers/tty/serial/8250/8250.h:117 drivers/tty/seria= l/8250/8250.h:139 drivers/tty/serial/8250/8250_port.c:2106 drivers/tty/seri= al/8250/8250_port.c:2124)=20 [ C56] serial8250_console_putchar (./include/linux/serial_core.h:704 driver= s/tty/serial/8250/8250_port.c:3347)=20 [ C56] ? __pfx_serial8250_console_putchar (drivers/tty/serial/8250/8250_por= t.c:3343)=20 [ C56] uart_console_write (drivers/tty/serial/serial_core.c:2134)=20 [ C56] serial8250_console_write_atomic (drivers/tty/serial/8250/8250_port.c= :3628)=20 [ C56] nbcon_emit_next_record (kernel/printk/nbcon.c:940)=20 [ C56] __nbcon_atomic_flush_all (kernel/printk/nbcon.c:1192 (discriminator = 1) kernel/printk/nbcon.c:1326 (discriminator 1))=20 [ C56] vprintk_emit (kernel/printk/printk.c:2414)=20 [ C56] _printk (kernel/printk/printk.c:2474)=20 [ C56] panic (./arch/x86/include/asm/bitops.h:207 ./arch/x86/include/asm/bi= tops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kerne= l/panic.c:528 kernel/panic.c:339)=20 [ C56] ? _printk (kernel/printk/printk.c:2474)=20 [ C56] sysrq_handle_crash (drivers/tty/sysrq.c:154)=20 [ C56] __handle_sysrq (drivers/tty/sysrq.c:601)=20 [ C56] write_sysrq_trigger (drivers/tty/sysrq.c:1165)=20 [ C56] proc_reg_write (fs/proc/inode.c:340 fs/proc/inode.c:352)=20 [ C56] ? preempt_count_add (./include/linux/ftrace.h:974 (discriminator 1) = kernel/sched/core.c:5847 (discriminator 1) kernel/sched/core.c:5844 (discri= minator 1) kernel/sched/core.c:5872 (discriminator 1))=20 [ C56] vfs_write (fs/read_write.c:582)=20 [ C56] ksys_write (fs/read_write.c:637)=20 [ C56] do_syscall_64 (arch/x86/entry/common.c:51 arch/x86/entry/common.c:81= )=20 [ C56] ? do_dup2 (fs/file.c:1142)=20 [ C56] ? syscall_exit_to_user_mode (kernel/entry/common.c:299)=20 [ C56] ? do_syscall_64 (arch/x86/entry/common.c:88)=20 [ C56] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:37 ./arch/x86/in= clude/asm/irqflags.h:72 arch/x86/mm/fault.c:1513 arch/x86/mm/fault.c:1561)= =20 [ C56] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:120)=20 [ C56] RIP: 0033:0x7f4a81e5fc94=0D [ C56] Code: c7 00 16 00 00 00 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00= 00 f3 0f 1e fa 80 3d d5 76 0d 00 00 74 13 b8 01 00 00 00 0f 05 <48> 3d 00 = f0 ff ff 77 54 c3 0f 1f 00 55 48 89 e5 48 83 ec 20 48 89=0D All code =3D=3D=3D=3D=3D=3D=3D=3D 0: c7 00 16 00 00 00 movl $0x16,(%rax) 6: b8 ff ff ff ff mov $0xffffffff,%eax b: c3 ret c: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) 13: 00 00 00=20 16: f3 0f 1e fa endbr64 1a: 80 3d d5 76 0d 00 00 cmpb $0x0,0xd76d5(%rip) # 0xd76f6 21: 74 13 je 0x36 23: b8 01 00 00 00 mov $0x1,%eax 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping = instruction 30: 77 54 ja 0x86 32: c3 ret 33: 0f 1f 00 nopl (%rax) 36: 55 push %rbp 37: 48 89 e5 mov %rsp,%rbp 3a: 48 83 ec 20 sub $0x20,%rsp 3e: 48 rex.W 3f: 89 .byte 0x89 Code starting with the faulting instruction =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 54 ja 0x5c 8: c3 ret 9: 0f 1f 00 nopl (%rax) c: 55 push %rbp d: 48 89 e5 mov %rsp,%rbp 10: 48 83 ec 20 sub $0x20,%rsp 14: 48 rex.W 15: 89 .byte 0x89 [ C56] RSP: 002b:00007ffc0e13b318 EFLAGS: 00000202 ORIG_RAX: 000000000000= 0001=0D [ C56] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f4a81e5fc94= =0D [ C56] RDX: 0000000000000002 RSI: 000055a865695490 RDI: 0000000000000001= =0D [ C56] RBP: 00007ffc0e13b340 R08: 0000000000000410 R09: 0000000000000001= =0D [ C56] R10: 0000000000000004 R11: 0000000000000202 R12: 0000000000000002= =0D [ C56] R13: 000055a865695490 R14: 00007f4a81f305c0 R15: 00007f4a81f2df20= =0D [ C56] =0D [ T2614] Hardware name: Intel Corporation D50DNP1SBB/D50DNP1SBB, BIOS SE5C7= 411.86B.9409.D04.2212261349 12/26/2022=0D [ T2614] Call Trace:=0D [ T2614] =0D [ T2614] dump_stack_lvl (lib/dump_stack.c:107)=20 [ T2614] panic (kernel/panic.c:340)=20 [ T2614] ? _printk (kernel/printk/printk.c:2474)=20 [ T2614] sysrq_handle_crash (drivers/tty/sysrq.c:154)=20 [ T2614] __handle_sysrq (drivers/tty/sysrq.c:601)=20 [ T2614] write_sysrq_trigger (drivers/tty/sysrq.c:1165)=20 [ T2614] proc_reg_write (fs/proc/inode.c:340 fs/proc/inode.c:352)=20 [ T2614] ? preempt_count_add (./include/linux/ftrace.h:974 (discriminator 1= ) kernel/sched/core.c:5847 (discriminator 1) kernel/sched/core.c:5844 (disc= riminator 1) kernel/sched/core.c:5872 (discriminator 1))=20 [ T2614] vfs_write (fs/read_write.c:582)=20 [ T2614] ksys_write (fs/read_write.c:637)=20 [ T2614] do_syscall_64 (arch/x86/entry/common.c:51 arch/x86/entry/common.c:= 81)=20 [ T2614] ? do_dup2 (fs/file.c:1142)=20 [ T2614] ? syscall_exit_to_user_mode (kernel/entry/common.c:299)=20 [ T2614] ? do_syscall_64 (arch/x86/entry/common.c:88)=20 [ T2614] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:37 ./arch/x86/= include/asm/irqflags.h:72 arch/x86/mm/fault.c:1513 arch/x86/mm/fault.c:1561= )=20 [ T2614] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:120)=20 [ T2614] RIP: 0033:0x7f4a81e5fc94=0D [ T2614] Code: c7 00 16 00 00 00 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 = 00 00 f3 0f 1e fa 80 3d d5 76 0d 00 00 74 13 b8 01 00 00 00 0f 05 <48> 3d 0= 0 f0 ff ff 77 54 c3 0f 1f 00 55 48 89 e5 48 83 ec 20 48 89=0D All code =3D=3D=3D=3D=3D=3D=3D=3D 0: c7 00 16 00 00 00 movl $0x16,(%rax) 6: b8 ff ff ff ff mov $0xffffffff,%eax b: c3 ret c: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) 13: 00 00 00=20 16: f3 0f 1e fa endbr64 1a: 80 3d d5 76 0d 00 00 cmpb $0x0,0xd76d5(%rip) # 0xd76f6 21: 74 13 je 0x36 23: b8 01 00 00 00 mov $0x1,%eax 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping = instruction 30: 77 54 ja 0x86 32: c3 ret 33: 0f 1f 00 nopl (%rax) 36: 55 push %rbp 37: 48 89 e5 mov %rsp,%rbp 3a: 48 83 ec 20 sub $0x20,%rsp 3e: 48 rex.W 3f: 89 .byte 0x89 Code starting with the faulting instruction =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 54 ja 0x5c 8: c3 ret 9: 0f 1f 00 nopl (%rax) c: 55 push %rbp d: 48 89 e5 mov %rsp,%rbp 10: 48 83 ec 20 sub $0x20,%rsp 14: 48 rex.W 15: 89 .byte 0x89 [ T2614] RSP: 002b:00007ffc0e13b318 EFLAGS: 00000202=0D [ T2614] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f4a81e5fc94= =0D [ T2614] RDX: 0000000000000002 RSI: 000055a865695490 RDI: 0000000000000001= =0D [ T2614] RBP: 00007ffc0e13b340 R08: 0000000000000410 R09: 0000000000000001= =0D [ T2614] R10: 0000000000000004 R11: 0000000000000202 R12: 0000000000000002= =0D [ T2614] R13: 000055a865695490 R14: 00007f4a81f305c0 R15: 00007f4a81f2df20= =0D [ T2614] =0D [ T2614] Shutting down cpus with NMI=0D [ T2614] Kernel Offset: disabled=0D [ T2614] ---[ end Kernel panic - not syncing: sysrq triggered crash ]---=0D [disconnect]=0D =1B]777;notify;Command completed;KRB5CCNAME=3D/dev/null console -M conserve= r-02.hosts.prod.psi.bos.redhat.com intel-eaglestream-spr-15.khw3.lab.eng.bo= s.redhat.com=1B=1B]777;precmd=1B=1B]0;j@thinkpad2021:~/BTWork/records/2023/= 12Dec-testprintkupstream/6.6.20-rt25=1B=1B]7;file://thinkpad2021/home/j/BTW= ork/records/2023/12Dec-testprintkupstream/6.6.20-rt25=1B=1B[?2004h=1B[38;5;= 166mj=1B[38;5;228m6.6.20-rt25=1B[38;5;43m=1B[38;5;71m=0D=0D >$ =1B(B=1B[mexit=0D =1B[?2004l=0D=1B]777;preexec=1Bexit=0D Script done on 2024-03-08 12:25:38-05:00 [COMMAND_EXIT_CODE=3D"0"] ----------------------------- NMI Backtrace for 6.6.20-rt25 no forced preemption with tuned throughput-pe= rformance profile ----------------------------- [ T2546] sysrq: Trigger a crash=0D [ T2546] Kernel panic - not syncing: sysrq triggered crash=0D [ C56] NMI backtrace for cpu 56=0D [ C56] Hardware name: Intel Corporation D50DNP1SBB/D50DNP1SBB, BIOS SE5C7= 411.86B.9409.D04.2212261349 12/26/2022=0D [ C56] RIP: 0010:io_serial_in (arch/x86/kernel/early_printk.c:100)=20 [ C56] Code: cc 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90= 0f 1f 44 00 00 0f b6 8f c1 00 00 00 0f b7 57 08 d3 e6 01 f2 ec <0f> b6 c0 = c3 cc cc cc cc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90=0D All code =3D=3D=3D=3D=3D=3D=3D=3D 0: cc int3 1: 0f 1f 40 00 nopl 0x0(%rax) 5: 90 nop 6: 90 nop 7: 90 nop 8: 90 nop 9: 90 nop a: 90 nop b: 90 nop c: 90 nop d: 90 nop e: 90 nop f: 90 nop 10: 90 nop 11: 90 nop 12: 90 nop 13: 90 nop 14: 90 nop 15: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 1a: 0f b6 8f c1 00 00 00 movzbl 0xc1(%rdi),%ecx 21: 0f b7 57 08 movzwl 0x8(%rdi),%edx 25: d3 e6 shl %cl,%esi 27: 01 f2 add %esi,%edx 29: ec in (%dx),%al 2a:* 0f b6 c0 movzbl %al,%eax <-- trapping instruction 2d: c3 ret 2e: cc int3 2f: cc int3 30: cc int3 31: cc int3 32: 0f 1f 00 nopl (%rax) 35: 90 nop 36: 90 nop 37: 90 nop 38: 90 nop 39: 90 nop 3a: 90 nop 3b: 90 nop 3c: 90 nop 3d: 90 nop 3e: 90 nop 3f: 90 nop Code starting with the faulting instruction =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D 0: 0f b6 c0 movzbl %al,%eax 3: c3 ret 4: cc int3 5: cc int3 6: cc int3 7: cc int3 8: 0f 1f 00 nopl (%rax) b: 90 nop c: 90 nop d: 90 nop e: 90 nop f: 90 nop 10: 90 nop 11: 90 nop 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop [ C56] RSP: 0018:ffa00000308e7ae8 EFLAGS: 00000002=0D [ C56] RAX: ffffffff8d7cf400 RBX: 0000000000000000 RCX: 0000000000000000= =0D [ C56] RDX: 00000000000003fd RSI: 0000000000000005 RDI: ffffffff8fcc68c0= =0D [ C56] RBP: 000000000000270f R08: 6469703e2d727275 R09: 2020202020202020= =0D [ C56] R10: 00000000632e2020 R11: 00000000632e2020 R12: 0000000000000020= =0D [ C56] R13: ffffffff8fcc68c0 R14: 0000000000000000 R15: 0000000000000000= =0D [ C56] FS: 00007f4c17301740(0000) GS:ff11003fff600000(0000) knlGS:000000= 0000000000=0D [ C56] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033=0D [ C56] CR2: 00007f4c174dd650 CR3: 000000010994c004 CR4: 0000000000771ee0= =0D [ C56] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000= =0D [ C56] DR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400= =0D [ C56] PKRU: 55555554=0D [ C56] Call Trace:=0D [ C56] =0D [ C56] ? nmi_cpu_backtrace (lib/nmi_backtrace.c:115)=20 [ C56] ? nmi_cpu_backtrace_handler (arch/x86/kernel/apic/hw_nmi.c:47 (discr= iminator 1))=20 [ C56] ? nmi_handle (arch/x86/kernel/nmi.c:149)=20 [ C56] ? io_serial_in (arch/x86/kernel/early_printk.c:100)=20 [ C56] ? default_do_nmi (arch/x86/kernel/nmi.c:347)=20 [ C56] ? exc_nmi (arch/x86/kernel/nmi.c:538)=20 [ C56] ? end_repeat_nmi (arch/x86/entry/entry_64.S:1458)=20 [ C56] ? mem16_serial_out (drivers/tty/serial/8250/8250_port.c:382)=20 [ C56] ? io_serial_in (arch/x86/kernel/early_printk.c:100)=20 [ C56] ? io_serial_in (arch/x86/kernel/early_printk.c:100)=20 [ C56] ? io_serial_in (arch/x86/kernel/early_printk.c:100)=20 [ C56] =0D [ C56] =0D [ C56] wait_for_xmitr (drivers/tty/serial/8250/8250.h:117 drivers/tty/seria= l/8250/8250.h:139 drivers/tty/serial/8250/8250_port.c:2106 drivers/tty/seri= al/8250/8250_port.c:2124)=20 [ C56] serial8250_console_putchar (./include/linux/serial_core.h:704 driver= s/tty/serial/8250/8250_port.c:3347)=20 [ C56] ? __pfx_serial8250_console_putchar (drivers/tty/serial/8250/8250_por= t.c:3343)=20 [ C56] uart_console_write (drivers/tty/serial/serial_core.c:2134)=20 [ C56] serial8250_console_write_atomic (drivers/tty/serial/8250/8250_port.c= :3628)=20 [ C56] nbcon_emit_next_record (kernel/printk/nbcon.c:940)=20 [ C56] __nbcon_atomic_flush_all (kernel/printk/nbcon.c:1192 (discriminator = 1) kernel/printk/nbcon.c:1326 (discriminator 1))=20 [ C56] vprintk_emit (kernel/printk/printk.c:2414)=20 [ C56] _printk (kernel/printk/printk.c:2474)=20 [ C56] panic (./arch/x86/include/asm/bitops.h:207 ./arch/x86/include/asm/bi= tops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kerne= l/panic.c:528 kernel/panic.c:339)=20 [ C56] ? _printk (kernel/printk/printk.c:2474)=20 [ C56] sysrq_handle_crash (drivers/tty/sysrq.c:154)=20 [ C56] __handle_sysrq (drivers/tty/sysrq.c:601)=20 [ C56] write_sysrq_trigger (drivers/tty/sysrq.c:1165)=20 [ C56] proc_reg_write (fs/proc/inode.c:340 fs/proc/inode.c:352)=20 [ C56] ? preempt_count_add (./include/linux/ftrace.h:974 (discriminator 1) = kernel/sched/core.c:5847 (discriminator 1) kernel/sched/core.c:5844 (discri= minator 1) kernel/sched/core.c:5872 (discriminator 1))=20 [ C56] vfs_write (fs/read_write.c:582)=20 [ C56] ? __do_sys_newfstatat (fs/stat.c:466 (discriminator 1))=20 [ C56] ksys_write (fs/read_write.c:637)=20 [ C56] do_syscall_64 (arch/x86/entry/common.c:51 arch/x86/entry/common.c:81= )=20 [ C56] ? syscall_exit_to_user_mode (kernel/entry/common.c:299)=20 [ C56] ? do_syscall_64 (arch/x86/entry/common.c:88)=20 [ C56] ? up_read (./arch/x86/include/asm/preempt.h:104 kernel/locking/rwsem= =2Ec:1354 kernel/locking/rwsem.c:1622)=20 [ C56] ? do_user_addr_fault (arch/x86/mm/fault.c:1368)=20 [ C56] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:37 ./arch/x86/in= clude/asm/irqflags.h:72 arch/x86/mm/fault.c:1513 arch/x86/mm/fault.c:1561)= =20 [ C56] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:120)=20 [ C56] RIP: 0033:0x7f4c1740cc94=0D [ C56] Code: c7 00 16 00 00 00 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00= 00 f3 0f 1e fa 80 3d d5 76 0d 00 00 74 13 b8 01 00 00 00 0f 05 <48> 3d 00 = f0 ff ff 77 54 c3 0f 1f 00 55 48 89 e5 48 83 ec 20 48 89=0D All code =3D=3D=3D=3D=3D=3D=3D=3D 0: c7 00 16 00 00 00 movl $0x16,(%rax) 6: b8 ff ff ff ff mov $0xffffffff,%eax b: c3 ret c: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) 13: 00 00 00=20 16: f3 0f 1e fa endbr64 1a: 80 3d d5 76 0d 00 00 cmpb $0x0,0xd76d5(%rip) # 0xd76f6 21: 74 13 je 0x36 23: b8 01 00 00 00 mov $0x1,%eax 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping = instruction 30: 77 54 ja 0x86 32: c3 ret 33: 0f 1f 00 nopl (%rax) 36: 55 push %rbp 37: 48 89 e5 mov %rsp,%rbp 3a: 48 83 ec 20 sub $0x20,%rsp 3e: 48 rex.W 3f: 89 .byte 0x89 Code starting with the faulting instruction =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 54 ja 0x5c 8: c3 ret 9: 0f 1f 00 nopl (%rax) c: 55 push %rbp d: 48 89 e5 mov %rsp,%rbp 10: 48 83 ec 20 sub $0x20,%rsp 14: 48 rex.W 15: 89 .byte 0x89 [ C56] RSP: 002b:00007ffe88b9b298 EFLAGS: 00000202 ORIG_RAX: 000000000000= 0001=0D [ C56] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f4c1740cc94= =0D [ C56] RDX: 0000000000000002 RSI: 00005634f890b490 RDI: 0000000000000001= =0D [ C56] RBP: 00007ffe88b9b2c0 R08: 0000000000000410 R09: 0000000000000001= =0D [ C56] R10: 0000000000000004 R11: 0000000000000202 R12: 0000000000000002= =0D [ C56] R13: 00005634f890b490 R14: 00007f4c174dd5c0 R15: 00007f4c174daf20= =0D [ C56] =0D [ C56] NMI backtrace for cpu 56=0D [ C56] Hardware name: Intel Corporation D50DNP1SBB/D50DNP1SBB, BIOS SE5C7= 411.86B.9409.D04.2212261349 12/26/2022=0D [ C56] RIP: 0010:io_serial_in (arch/x86/kernel/early_printk.c:100)=20 [ C56] Code: cc 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90= 0f 1f 44 00 00 0f b6 8f c1 00 00 00 0f b7 57 08 d3 e6 01 f2 ec <0f> b6 c0 = c3 cc cc cc cc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90=0D All code =3D=3D=3D=3D=3D=3D=3D=3D 0: cc int3 1: 0f 1f 40 00 nopl 0x0(%rax) 5: 90 nop 6: 90 nop 7: 90 nop 8: 90 nop 9: 90 nop a: 90 nop b: 90 nop c: 90 nop d: 90 nop e: 90 nop f: 90 nop 10: 90 nop 11: 90 nop 12: 90 nop 13: 90 nop 14: 90 nop 15: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 1a: 0f b6 8f c1 00 00 00 movzbl 0xc1(%rdi),%ecx 21: 0f b7 57 08 movzwl 0x8(%rdi),%edx 25: d3 e6 shl %cl,%esi 27: 01 f2 add %esi,%edx 29: ec in (%dx),%al 2a:* 0f b6 c0 movzbl %al,%eax <-- trapping instruction 2d: c3 ret 2e: cc int3 2f: cc int3 30: cc int3 31: cc int3 32: 0f 1f 00 nopl (%rax) 35: 90 nop 36: 90 nop 37: 90 nop 38: 90 nop 39: 90 nop 3a: 90 nop 3b: 90 nop 3c: 90 nop 3d: 90 nop 3e: 90 nop 3f: 90 nop Code starting with the faulting instruction =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D 0: 0f b6 c0 movzbl %al,%eax 3: c3 ret 4: cc int3 5: cc int3 6: cc int3 7: cc int3 8: 0f 1f 00 nopl (%rax) b: 90 nop c: 90 nop d: 90 nop e: 90 nop f: 90 nop 10: 90 nop 11: 90 nop 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop [ C56] RSP: 0018:ffa00000308e7ae8 EFLAGS: 00000002=0D [ C56] RAX: ffffffff8d7cf400 RBX: 0000000000000000 RCX: 0000000000000000= =0D [ C56] RDX: 00000000000003fd RSI: 0000000000000005 RDI: ffffffff8fcc68c0= =0D [ C56] RBP: 000000000000270f R08: 64656c74746f7268 R09: 2020202020202020= =0D [ C56] R10: 00000000742e2020 R11: 00000000742e2020 R12: 0000000000000020= =0D [ C56] R13: ffffffff8fcc68c0 R14: 0000000000000000 R15: 0000000000000000= =0D [ C56] FS: 00007f4c17301740(0000) GS:ff11003fff600000(0000) knlGS:000000= 0000000000=0D [ C56] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033=0D [ C56] CR2: 00007f4c174dd650 CR3: 000000010994c004 CR4: 0000000000771ee0= =0D [ C56] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000= =0D [ C56] DR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400= =0D [ C56] PKRU: 55555554=0D [ C56] Call Trace:=0D [ C56] =0D [ C56] ? nmi_cpu_backtrace (lib/nmi_backtrace.c:115)=20 [ C56] ? nmi_cpu_backtrace_handler (arch/x86/kernel/apic/hw_nmi.c:47 (discr= iminator 1))=20 [ C56] ? nmi_handle (arch/x86/kernel/nmi.c:149)=20 [ C56] ? io_serial_in (arch/x86/kernel/early_printk.c:100)=20 [ C56] ? default_do_nmi (arch/x86/kernel/nmi.c:347)=20 [ C56] ? exc_nmi (arch/x86/kernel/nmi.c:538)=20 [ C56] ? end_repeat_nmi (arch/x86/entry/entry_64.S:1458)=20 [ C56] ? mem16_serial_out (drivers/tty/serial/8250/8250_port.c:382)=20 [ C56] ? io_serial_in (arch/x86/kernel/early_printk.c:100)=20 [ C56] ? io_serial_in (arch/x86/kernel/early_printk.c:100)=20 [ C56] ? io_serial_in (arch/x86/kernel/early_printk.c:100)=20 [ C56] =0D [ C56] =0D [ C56] wait_for_xmitr (drivers/tty/serial/8250/8250.h:117 drivers/tty/seria= l/8250/8250.h:139 drivers/tty/serial/8250/8250_port.c:2106 drivers/tty/seri= al/8250/8250_port.c:2124)=20 [ C56] serial8250_console_putchar (./include/linux/serial_core.h:704 driver= s/tty/serial/8250/8250_port.c:3347)=20 [ C56] ? __pfx_serial8250_console_putchar (drivers/tty/serial/8250/8250_por= t.c:3343)=20 [ C56] uart_console_write (drivers/tty/serial/serial_core.c:2134)=20 [ C56] serial8250_console_write_atomic (drivers/tty/serial/8250/8250_port.c= :3628)=20 [ C56] nbcon_emit_next_record (kernel/printk/nbcon.c:940)=20 [ C56] __nbcon_atomic_flush_all (kernel/printk/nbcon.c:1192 (discriminator = 1) kernel/printk/nbcon.c:1326 (discriminator 1))=20 [ C56] vprintk_emit (kernel/printk/printk.c:2414)=20 [ C56] _printk (kernel/printk/printk.c:2474)=20 [ C56] panic (./arch/x86/include/asm/bitops.h:207 ./arch/x86/include/asm/bi= tops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kerne= l/panic.c:528 kernel/panic.c:339)=20 [ C56] ? _printk (kernel/printk/printk.c:2474)=20 [ C56] sysrq_handle_crash (drivers/tty/sysrq.c:154)=20 [ C56] __handle_sysrq (drivers/tty/sysrq.c:601)=20 [ C56] write_sysrq_trigger (drivers/tty/sysrq.c:1165)=20 [ C56] proc_reg_write (fs/proc/inode.c:340 fs/proc/inode.c:352)=20 [ C56] ? preempt_count_add (./include/linux/ftrace.h:974 (discriminator 1) = kernel/sched/core.c:5847 (discriminator 1) kernel/sched/core.c:5844 (discri= minator 1) kernel/sched/core.c:5872 (discriminator 1))=20 [ C56] vfs_write (fs/read_write.c:582)=20 [ C56] ? __do_sys_newfstatat (fs/stat.c:466 (discriminator 1))=20 [ C56] ksys_write (fs/read_write.c:637)=20 [ C56] do_syscall_64 (arch/x86/entry/common.c:51 arch/x86/entry/common.c:81= )=20 [ C56] ? syscall_exit_to_user_mode (kernel/entry/common.c:299)=20 [ C56] ? do_syscall_64 (arch/x86/entry/common.c:88)=20 [ C56] ? up_read (./arch/x86/include/asm/preempt.h:104 kernel/locking/rwsem= =2Ec:1354 kernel/locking/rwsem.c:1622)=20 [ C56] ? do_user_addr_fault (arch/x86/mm/fault.c:1368)=20 [ C56] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:37 ./arch/x86/in= clude/asm/irqflags.h:72 arch/x86/mm/fault.c:1513 arch/x86/mm/fault.c:1561)= =20 [ C56] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:120)=20 [ C56] RIP: 0033:0x7f4c1740cc94=0D [ C56] Code: c7 00 16 00 00 00 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00= 00 f3 0f 1e fa 80 3d d5 76 0d 00 00 74 13 b8 01 00 00 00 0f 05 <48> 3d 00 = f0 ff ff 77 54 c3 0f 1f 00 55 48 89 e5 48 83 ec 20 48 89=0D All code =3D=3D=3D=3D=3D=3D=3D=3D 0: c7 00 16 00 00 00 movl $0x16,(%rax) 6: b8 ff ff ff ff mov $0xffffffff,%eax b: c3 ret c: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) 13: 00 00 00=20 16: f3 0f 1e fa endbr64 1a: 80 3d d5 76 0d 00 00 cmpb $0x0,0xd76d5(%rip) # 0xd76f6 21: 74 13 je 0x36 23: b8 01 00 00 00 mov $0x1,%eax 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping = instruction 30: 77 54 ja 0x86 32: c3 ret 33: 0f 1f 00 nopl (%rax) 36: 55 push %rbp 37: 48 89 e5 mov %rsp,%rbp 3a: 48 83 ec 20 sub $0x20,%rsp 3e: 48 rex.W 3f: 89 .byte 0x89 Code starting with the faulting instruction =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 54 ja 0x5c 8: c3 ret 9: 0f 1f 00 nopl (%rax) c: 55 push %rbp d: 48 89 e5 mov %rsp,%rbp 10: 48 83 ec 20 sub $0x20,%rsp 14: 48 rex.W 15: 89 .byte 0x89 [ C56] RSP: 002b:00007ffe88b9b298 EFLAGS: 00000202 ORIG_RAX: 000000000000= 0001=0D [ C56] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f4c1740cc94= =0D [ C56] RDX: 0000000000000002 RSI: 00005634f890b490 RDI: 0000000000000001= =0D [ C56] RBP: 00007ffe88b9b2c0 R08: 0000000000000410 R09: 0000000000000001= =0D [ C56] R10: 0000000000000004 R11: 0000000000000202 R12: 0000000000000002= =0D [ C56] R13: 00005634f890b490 R14: 00007f4c174dd5c0 R15: 00007f4c174daf20= =0D [ C56] =0D [ T2546] Hardware name: Intel Corporation D50DNP1SBB/D50DNP1SBB, BIOS SE5C7= 411.86B.9409.D04.2212261349 12/26/2022=0D [ T2546] Call Trace:=0D [ T2546] =0D [ T2546] dump_stack_lvl (lib/dump_stack.c:107)=20 [ T2546] panic (kernel/panic.c:340)=20 [ T2546] ? _printk (kernel/printk/printk.c:2474)=20 [ T2546] sysrq_handle_crash (drivers/tty/sysrq.c:154)=20 [ T2546] __handle_sysrq (drivers/tty/sysrq.c:601)=20 [ T2546] write_sysrq_trigger (drivers/tty/sysrq.c:1165)=20 [ T2546] proc_reg_write (fs/proc/inode.c:340 fs/proc/inode.c:352)=20 [ T2546] ? preempt_count_add (./include/linux/ftrace.h:974 (discriminator 1= ) kernel/sched/core.c:5847 (discriminator 1) kernel/sched/core.c:5844 (disc= riminator 1) kernel/sched/core.c:5872 (discriminator 1))=20 [ T2546] vfs_write (fs/read_write.c:582)=20 [ T2546] ? __do_sys_newfstatat (fs/stat.c:466 (discriminator 1))=20 [ T2546] ksys_write (fs/read_write.c:637)=20 [ T2546] do_syscall_64 (arch/x86/entry/common.c:51 arch/x86/entry/common.c:= 81)=20 [ T2546] ? syscall_exit_to_user_mode (kernel/entry/common.c:299)=20 [ T2546] ? do_syscall_64 (arch/x86/entry/common.c:88)=20 [ T2546] ? up_read (./arch/x86/include/asm/preempt.h:104 kernel/locking/rws= em.c:1354 kernel/locking/rwsem.c:1622)=20 [ T2546] ? do_user_addr_fault (arch/x86/mm/fault.c:1368)=20 [ T2546] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:37 ./arch/x86/= include/asm/irqflags.h:72 arch/x86/mm/fault.c:1513 arch/x86/mm/fault.c:1561= )=20 [ T2546] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:120)=20 [ T2546] RIP: 0033:0x7f4c1740cc94=0D [ T2546] Code: c7 00 16 00 00 00 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 = 00 00 f3 0f 1e fa 80 3d d5 76 0d 00 00 74 13 b8 01 00 00 00 0f 05 <48> 3d 0= 0 f0 ff ff 77 54 c3 0f 1f 00 55 48 89 e5 48 83 ec 20 48 89=0D All code =3D=3D=3D=3D=3D=3D=3D=3D 0: c7 00 16 00 00 00 movl $0x16,(%rax) 6: b8 ff ff ff ff mov $0xffffffff,%eax b: c3 ret c: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) 13: 00 00 00=20 16: f3 0f 1e fa endbr64 1a: 80 3d d5 76 0d 00 00 cmpb $0x0,0xd76d5(%rip) # 0xd76f6 21: 74 13 je 0x36 23: b8 01 00 00 00 mov $0x1,%eax 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping = instruction 30: 77 54 ja 0x86 32: c3 ret 33: 0f 1f 00 nopl (%rax) 36: 55 push %rbp 37: 48 89 e5 mov %rsp,%rbp 3a: 48 83 ec 20 sub $0x20,%rsp 3e: 48 rex.W 3f: 89 .byte 0x89 Code starting with the faulting instruction =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 54 ja 0x5c 8: c3 ret 9: 0f 1f 00 nopl (%rax) c: 55 push %rbp d: 48 89 e5 mov %rsp,%rbp 10: 48 83 ec 20 sub $0x20,%rsp 14: 48 rex.W 15: 89 .byte 0x89 [ T2546] RSP: 002b:00007ffe88b9b298 EFLAGS: 00000202=0D [ T2546] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f4c1740cc94= =0D [ T2546] RDX: 0000000000000002 RSI: 00005634f890b490 RDI: 0000000000000001= =0D [ T2546] RBP: 00007ffe88b9b2c0 R08: 0000000000000410 R09: 0000000000000001= =0D [ T2546] R10: 0000000000000004 R11: 0000000000000202 R12: 0000000000000002= =0D [ T2546] R13: 00005634f890b490 R14: 00007f4c174dd5c0 R15: 00007f4c174daf20= =0D [ T2546] =0D [ T2546] Shutting down cpus with NMI=0D [ T2546] Kernel Offset: disabled=0D [ T2546] ---[ end Kernel panic - not syncing: sysrq triggered crash ]---=0D ----------------------------- NMI Backtrace for 6.6.20-rt25 fully preemptive with tuned realtime profile ----------------------------- [ T3402] sysrq: Trigger a crash=0D [ T3406] =0D [ T3402] Kernel panic - not syncing: sysrq triggered crash=0D [ C56] NMI backtrace for cpu 56=0D [ C56] Hardware name: Intel Corporation D50DNP1SBB/D50DNP1SBB, BIOS SE5C7= 411.86B.9409.D04.2212261349 12/26/2022=0D [ C56] RIP: 0010:delay_halt_tpause (arch/x86/lib/delay.c:118)=20 [ C56] Code: cc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f= 1f 44 00 00 48 8d 04 37 31 c9 48 89 c2 48 c1 ea 20 66 0f ae f1 cc cc = cc cc 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90=0D All code =3D=3D=3D=3D=3D=3D=3D=3D 0: cc int3 1: 0f 1f 00 nopl (%rax) 4: 90 nop 5: 90 nop 6: 90 nop 7: 90 nop 8: 90 nop 9: 90 nop a: 90 nop b: 90 nop c: 90 nop d: 90 nop e: 90 nop f: 90 nop 10: 90 nop 11: 90 nop 12: 90 nop 13: 90 nop 14: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 19: 48 8d 04 37 lea (%rdi,%rsi,1),%rax 1d: 31 c9 xor %ecx,%ecx 1f: 48 89 c2 mov %rax,%rdx 22: 48 c1 ea 20 shr $0x20,%rdx 26: 66 0f ae f1 tpause %ecx 2a:* c3 ret <-- trapping instruction 2b: cc int3 2c: cc int3 2d: cc int3 2e: cc int3 2f: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 34: 90 nop 35: 90 nop 36: 90 nop 37: 90 nop 38: 90 nop 39: 90 nop 3a: 90 nop 3b: 90 nop 3c: 90 nop 3d: 90 nop 3e: 90 nop 3f: 90 nop Code starting with the faulting instruction =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D 0: c3 ret 1: cc int3 2: cc int3 3: cc int3 4: cc int3 5: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) a: 90 nop b: 90 nop c: 90 nop d: 90 nop e: 90 nop f: 90 nop 10: 90 nop 11: 90 nop 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop [ C56] RSP: 0018:ffa0000039cfba80 EFLAGS: 00000002=0D [ C56] RAX: 00000099a649b2ae RBX: 00000000000006d5 RCX: 0000000000000000= =0D [ C56] RDX: 0000000000000099 RSI: 00000000000006d5 RDI: 00000099a649abd9= =0D [ C56] RBP: 00000099a649abd9 R08: 303178302f303178 R09: 302b646165726874= =0D [ C56] R10: 6461657268746b5f R11: 7866705f5f203f20 R12: 0000000000000020= =0D [ C56] R13: ffffffff9b8fd320 R14: 0000000000000000 R15: 0000000000000000= =0D [ C56] FS: 00007f12ca52d740(0000) GS:ff11003fff600000(0000) knlGS:000000= 0000000000=0D [ C56] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033=0D [ C56] CR2: 00007f12ca709650 CR3: 000000010fbe6003 CR4: 0000000000771ee0= =0D [ C56] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000= =0D [ C56] DR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400= =0D [ C56] PKRU: 55555554=0D [ C56] Call Trace:=0D [ C56] =0D [ C56] ? nmi_cpu_backtrace (lib/nmi_backtrace.c:115)=20 [ C56] ? nmi_cpu_backtrace_handler (arch/x86/kernel/apic/hw_nmi.c:47 (discr= iminator 1))=20 [ C56] ? nmi_handle (arch/x86/kernel/nmi.c:149)=20 [ C56] ? delay_halt_tpause (arch/x86/lib/delay.c:118)=20 [ C56] ? default_do_nmi (arch/x86/kernel/nmi.c:347)=20 [ C56] ? exc_nmi (arch/x86/kernel/nmi.c:538)=20 [ C56] ? end_repeat_nmi (arch/x86/entry/entry_64.S:1458)=20 [ C56] ? delay_halt_tpause (arch/x86/lib/delay.c:118)=20 [ C56] ? delay_halt_tpause (arch/x86/lib/delay.c:118)=20 [ C56] ? delay_halt_tpause (arch/x86/lib/delay.c:118)=20 [ C56] =0D [ C56] =0D [ C56] delay_halt.part.0 (arch/x86/lib/delay.c:163)=20 [ C56] wait_for_xmitr (./include/linux/nmi.h:147 drivers/tty/serial/8250/82= 50_port.c:2113 drivers/tty/serial/8250/8250_port.c:2124)=20 [ C56] serial8250_console_putchar (./include/linux/serial_core.h:704 driver= s/tty/serial/8250/8250_port.c:3347)=20 [ C56] ? __pfx_serial8250_console_putchar (drivers/tty/serial/8250/8250_por= t.c:3343)=20 [ C56] uart_console_write (drivers/tty/serial/serial_core.c:2134)=20 [ C56] serial8250_console_write_atomic (drivers/tty/serial/8250/8250_port.c= :3628)=20 [ C56] nbcon_emit_next_record (kernel/printk/nbcon.c:940)=20 [ C56] __nbcon_atomic_flush_all (kernel/printk/nbcon.c:1192 (discriminator = 1) kernel/printk/nbcon.c:1326 (discriminator 1))=20 [ C56] vprintk_emit (kernel/printk/printk.c:2414)=20 [ C56] _printk (kernel/printk/printk.c:2474)=20 [ C56] panic (./arch/x86/include/asm/bitops.h:207 ./arch/x86/include/asm/bi= tops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kerne= l/panic.c:528 kernel/panic.c:339)=20 [ C56] ? _printk (kernel/printk/printk.c:2474)=20 [ C56] sysrq_handle_crash (drivers/tty/sysrq.c:154)=20 [ C56] __handle_sysrq (drivers/tty/sysrq.c:601)=20 [ C56] write_sysrq_trigger (drivers/tty/sysrq.c:1165)=20 [ C56] proc_reg_write (fs/proc/inode.c:340 fs/proc/inode.c:352)=20 [ C56] ? preempt_count_add (./include/linux/ftrace.h:974 (discriminator 1) = kernel/sched/core.c:5847 (discriminator 1) kernel/sched/core.c:5844 (discri= minator 1) kernel/sched/core.c:5872 (discriminator 1))=20 [ C56] vfs_write (fs/read_write.c:582)=20 [ C56] ksys_write (fs/read_write.c:637)=20 [ C56] do_syscall_64 (arch/x86/entry/common.c:51 arch/x86/entry/common.c:81= )=20 [ C56] ? syscall_exit_to_user_mode (kernel/entry/common.c:299)=20 [ C56] ? do_syscall_64 (arch/x86/entry/common.c:88)=20 [ C56] ? do_syscall_64 (arch/x86/entry/common.c:88)=20 [ C56] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:37 ./arch/x86/in= clude/asm/irqflags.h:72 arch/x86/mm/fault.c:1513 arch/x86/mm/fault.c:1561)= =20 [ C56] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:120)=20 [ C56] RIP: 0033:0x7f12ca638c94=0D [ C56] Code: c7 00 16 00 00 00 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00= 00 f3 0f 1e fa 80 3d d5 76 0d 00 00 74 13 b8 01 00 00 00 0f 05 <48> 3d 00 = f0 ff ff 77 54 c3 0f 1f 00 55 48 89 e5 48 83 ec 20 48 89=0D All code =3D=3D=3D=3D=3D=3D=3D=3D 0: c7 00 16 00 00 00 movl $0x16,(%rax) 6: b8 ff ff ff ff mov $0xffffffff,%eax b: c3 ret c: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) 13: 00 00 00=20 16: f3 0f 1e fa endbr64 1a: 80 3d d5 76 0d 00 00 cmpb $0x0,0xd76d5(%rip) # 0xd76f6 21: 74 13 je 0x36 23: b8 01 00 00 00 mov $0x1,%eax 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping = instruction 30: 77 54 ja 0x86 32: c3 ret 33: 0f 1f 00 nopl (%rax) 36: 55 push %rbp 37: 48 89 e5 mov %rsp,%rbp 3a: 48 83 ec 20 sub $0x20,%rsp 3e: 48 rex.W 3f: 89 .byte 0x89 Code starting with the faulting instruction =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 54 ja 0x5c 8: c3 ret 9: 0f 1f 00 nopl (%rax) c: 55 push %rbp d: 48 89 e5 mov %rsp,%rbp 10: 48 83 ec 20 sub $0x20,%rsp 14: 48 rex.W 15: 89 .byte 0x89 [ C56] RSP: 002b:00007ffce58c2ef8 EFLAGS: 00000202 ORIG_RAX: 000000000000= 0001=0D [ C56] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f12ca638c94= =0D [ C56] RDX: 0000000000000002 RSI: 000055b5493b8490 RDI: 0000000000000001= =0D [ C56] RBP: 00007ffce58c2f20 R08: 0000000000000410 R09: 0000000000000001= =0D [ C56] R10: 0000000000000004 R11: 0000000000000202 R12: 0000000000000002= =0D [ C56] R13: 000055b5493b8490 R14: 00007f12ca7095c0 R15: 00007f12ca706f20= =0D [ C56] =0D [ C56] NMI backtrace for cpu 56=0D [ C56] Hardware name: Intel Corporation D50DNP1SBB/D50DNP1SBB, BIOS SE5C7= 411.86B.9409.D04.2212261349 12/26/2022=0D [ C56] RIP: 0010:delay_halt.part.0 (arch/x86/lib/delay.c:169)=20 [ C56] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 44 00 00 55= 53 48 89 fb 0f 01 f9 66 90 48 c1 e2 20 48 09 c2 48 89 d5 eb 09 <48> 01 eb = 48 89 c5 48 29 c3 48 8b 05 15 bd a0 00 48 89 de 48 89 ef=0D All code =3D=3D=3D=3D=3D=3D=3D=3D 0: 90 nop 1: 90 nop 2: 90 nop 3: 90 nop 4: 90 nop 5: 90 nop 6: 90 nop 7: 90 nop 8: 90 nop 9: 90 nop a: 90 nop b: 90 nop c: 90 nop d: 90 nop e: 90 nop f: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 14: 55 push %rbp 15: 53 push %rbx 16: 48 89 fb mov %rdi,%rbx 19: 0f 01 f9 rdtscp 1c: 66 90 xchg %ax,%ax 1e: 48 c1 e2 20 shl $0x20,%rdx 22: 48 09 c2 or %rax,%rdx 25: 48 89 d5 mov %rdx,%rbp 28: eb 09 jmp 0x33 2a:* 48 01 eb add %rbp,%rbx <-- trapping instruction 2d: 48 89 c5 mov %rax,%rbp 30: 48 29 c3 sub %rax,%rbx 33: 48 8b 05 15 bd a0 00 mov 0xa0bd15(%rip),%rax # 0xa0bd4f 3a: 48 89 de mov %rbx,%rsi 3d: 48 89 ef mov %rbp,%rdi Code starting with the faulting instruction =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D 0: 48 01 eb add %rbp,%rbx 3: 48 89 c5 mov %rax,%rbp 6: 48 29 c3 sub %rax,%rbx 9: 48 8b 05 15 bd a0 00 mov 0xa0bd15(%rip),%rax # 0xa0bd25 10: 48 89 de mov %rbx,%rsi 13: 48 89 ef mov %rbp,%rdi [ C56] RSP: 0018:ffa0000039cfba88 EFLAGS: 00000093=0D [ C56] RAX: 000000ec13deb29f RBX: 000000000000076d RCX: 0000000000004038= =0D [ C56] RDX: 0000000000000050 RSI: 000000000000076d RDI: 000000ec13deb24f= =0D [ C56] RBP: 000000ec13deb24f R08: 20203138312f7068 R09: 7570632020202020= =0D [ C56] R10: 38312f7068757063 R11: 2020202020205320 R12: 0000000000000020= =0D [ C56] R13: ffffffff9b8fd320 R14: 0000000000000000 R15: 0000000000000000= =0D [ C56] FS: 00007f12ca52d740(0000) GS:ff11003fff600000(0000) knlGS:000000= 0000000000=0D [ C56] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033=0D [ C56] CR2: 00007f12ca709650 CR3: 000000010fbe6003 CR4: 0000000000771ee0= =0D [ C56] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000= =0D [ C56] DR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400= =0D [ C56] PKRU: 55555554=0D [ C56] Call Trace:=0D [ C56] =0D [ C56] ? nmi_cpu_backtrace (lib/nmi_backtrace.c:115)=20 [ C56] ? nmi_cpu_backtrace_handler (arch/x86/kernel/apic/hw_nmi.c:47 (discr= iminator 1))=20 [ C56] ? nmi_handle (arch/x86/kernel/nmi.c:149)=20 [ C56] ? delay_halt.part.0 (arch/x86/lib/delay.c:169)=20 [ C56] ? default_do_nmi (arch/x86/kernel/nmi.c:347)=20 [ C56] ? exc_nmi (arch/x86/kernel/nmi.c:538)=20 [ C56] ? end_repeat_nmi (arch/x86/entry/entry_64.S:1458)=20 [ C56] ? delay_halt.part.0 (arch/x86/lib/delay.c:169)=20 [ C56] ? delay_halt.part.0 (arch/x86/lib/delay.c:169)=20 [ C56] ? delay_halt.part.0 (arch/x86/lib/delay.c:169)=20 [ C56] =0D [ C56] =0D [ C56] wait_for_xmitr (./include/linux/nmi.h:147 drivers/tty/serial/8250/82= 50_port.c:2113 drivers/tty/serial/8250/8250_port.c:2124)=20 [ C56] serial8250_console_putchar (./include/linux/serial_core.h:704 driver= s/tty/serial/8250/8250_port.c:3347)=20 [ C56] ? __pfx_serial8250_console_putchar (drivers/tty/serial/8250/8250_por= t.c:3343)=20 [ C56] uart_console_write (drivers/tty/serial/serial_core.c:2134)=20 [ C56] serial8250_console_write_atomic (drivers/tty/serial/8250/8250_port.c= :3628)=20 [ C56] nbcon_emit_next_record (kernel/printk/nbcon.c:940)=20 [ C56] __nbcon_atomic_flush_all (kernel/printk/nbcon.c:1192 (discriminator = 1) kernel/printk/nbcon.c:1326 (discriminator 1))=20 [ C56] vprintk_emit (kernel/printk/printk.c:2414)=20 [ C56] _printk (kernel/printk/printk.c:2474)=20 [ C56] panic (./arch/x86/include/asm/bitops.h:207 ./arch/x86/include/asm/bi= tops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kerne= l/panic.c:528 kernel/panic.c:339)=20 [ C56] ? _printk (kernel/printk/printk.c:2474)=20 [ C56] sysrq_handle_crash (drivers/tty/sysrq.c:154)=20 [ C56] __handle_sysrq (drivers/tty/sysrq.c:601)=20 [ C56] write_sysrq_trigger (drivers/tty/sysrq.c:1165)=20 [ C56] proc_reg_write (fs/proc/inode.c:340 fs/proc/inode.c:352)=20 [ C56] ? preempt_count_add (./include/linux/ftrace.h:974 (discriminator 1) = kernel/sched/core.c:5847 (discriminator 1) kernel/sched/core.c:5844 (discri= minator 1) kernel/sched/core.c:5872 (discriminator 1))=20 [ C56] vfs_write (fs/read_write.c:582)=20 [ C56] ksys_write (fs/read_write.c:637)=20 [ C56] do_syscall_64 (arch/x86/entry/common.c:51 arch/x86/entry/common.c:81= )=20 [ C56] ? syscall_exit_to_user_mode (kernel/entry/common.c:299)=20 [ C56] ? do_syscall_64 (arch/x86/entry/common.c:88)=20 [ C56] ? do_syscall_64 (arch/x86/entry/common.c:88)=20 [ C56] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:37 ./arch/x86/in= clude/asm/irqflags.h:72 arch/x86/mm/fault.c:1513 arch/x86/mm/fault.c:1561)= =20 [ C56] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:120)=20 [ C56] RIP: 0033:0x7f12ca638c94=0D [ C56] Code: c7 00 16 00 00 00 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00= 00 f3 0f 1e fa 80 3d d5 76 0d 00 00 74 13 b8 01 00 00 00 0f 05 <48> 3d 00 = f0 ff ff 77 54 c3 0f 1f 00 55 48 89 e5 48 83 ec 20 48 89=0D All code =3D=3D=3D=3D=3D=3D=3D=3D 0: c7 00 16 00 00 00 movl $0x16,(%rax) 6: b8 ff ff ff ff mov $0xffffffff,%eax b: c3 ret c: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) 13: 00 00 00=20 16: f3 0f 1e fa endbr64 1a: 80 3d d5 76 0d 00 00 cmpb $0x0,0xd76d5(%rip) # 0xd76f6 21: 74 13 je 0x36 23: b8 01 00 00 00 mov $0x1,%eax 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping = instruction 30: 77 54 ja 0x86 32: c3 ret 33: 0f 1f 00 nopl (%rax) 36: 55 push %rbp 37: 48 89 e5 mov %rsp,%rbp 3a: 48 83 ec 20 sub $0x20,%rsp 3e: 48 rex.W 3f: 89 .byte 0x89 Code starting with the faulting instruction =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 54 ja 0x5c 8: c3 ret 9: 0f 1f 00 nopl (%rax) c: 55 push %rbp d: 48 89 e5 mov %rsp,%rbp 10: 48 83 ec 20 sub $0x20,%rsp 14: 48 rex.W 15: 89 .byte 0x89 [ C56] RSP: 002b:00007ffce58c2ef8 EFLAGS: 00000202 ORIG_RAX: 000000000000= 0001=0D [ C56] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f12ca638c94= =0D [ C56] RDX: 0000000000000002 RSI: 000055b5493b8490 RDI: 0000000000000001= =0D [ C56] RBP: 00007ffce58c2f20 R08: 0000000000000410 R09: 0000000000000001= =0D [ C56] R10: 0000000000000004 R11: 0000000000000202 R12: 0000000000000002= =0D [ C56] R13: 000055b5493b8490 R14: 00007f12ca7095c0 R15: 00007f12ca706f20= =0D [ C56] =0D [ T3402] Hardware name: Intel Corporation D50DNP1SBB/D50DNP1SBB, BIOS SE5C7= 411.86B.9409.D04.2212261349 12/26/2022=0D [ T3402] Call Trace:=0D [ T3402] =0D [ T3402] dump_stack_lvl (lib/dump_stack.c:107)=20 [ T3402] panic (kernel/panic.c:340)=20 [ T3402] ? _printk (kernel/printk/printk.c:2474)=20 [ T3402] sysrq_handle_crash (drivers/tty/sysrq.c:154)=20 [ T3402] __handle_sysrq (drivers/tty/sysrq.c:601)=20 [ T3402] write_sysrq_trigger (drivers/tty/sysrq.c:1165)=20 [ T3402] proc_reg_write (fs/proc/inode.c:340 fs/proc/inode.c:352)=20 [ T3402] ? preempt_count_add (./include/linux/ftrace.h:974 (discriminator 1= ) kernel/sched/core.c:5847 (discriminator 1) kernel/sched/core.c:5844 (disc= riminator 1) kernel/sched/core.c:5872 (discriminator 1))=20 [ T3402] vfs_write (fs/read_write.c:582)=20 [ T3402] ksys_write (fs/read_write.c:637)=20 [ T3402] do_syscall_64 (arch/x86/entry/common.c:51 arch/x86/entry/common.c:= 81)=20 [ T3402] ? syscall_exit_to_user_mode (kernel/entry/common.c:299)=20 [ T3402] ? do_syscall_64 (arch/x86/entry/common.c:88)=20 [ T3402] ? do_syscall_64 (arch/x86/entry/common.c:88)=20 [ T3402] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:37 ./arch/x86/= include/asm/irqflags.h:72 arch/x86/mm/fault.c:1513 arch/x86/mm/fault.c:1561= )=20 [ T3402] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:120)=20 [ T3402] RIP: 0033:0x7f12ca638c94=0D [ T3402] Code: c7 00 16 00 00 00 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 = 00 00 f3 0f 1e fa 80 3d d5 76 0d 00 00 74 13 b8 01 00 00 00 0f 05 <48> 3d 0= 0 f0 ff ff 77 54 c3 0f 1f 00 55 48 89 e5 48 83 ec 20 48 89=0D All code =3D=3D=3D=3D=3D=3D=3D=3D 0: c7 00 16 00 00 00 movl $0x16,(%rax) 6: b8 ff ff ff ff mov $0xffffffff,%eax b: c3 ret c: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) 13: 00 00 00=20 16: f3 0f 1e fa endbr64 1a: 80 3d d5 76 0d 00 00 cmpb $0x0,0xd76d5(%rip) # 0xd76f6 21: 74 13 je 0x36 23: b8 01 00 00 00 mov $0x1,%eax 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping = instruction 30: 77 54 ja 0x86 32: c3 ret 33: 0f 1f 00 nopl (%rax) 36: 55 push %rbp 37: 48 89 e5 mov %rsp,%rbp 3a: 48 83 ec 20 sub $0x20,%rsp 3e: 48 rex.W 3f: 89 .byte 0x89 Code starting with the faulting instruction =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 54 ja 0x5c 8: c3 ret 9: 0f 1f 00 nopl (%rax) c: 55 push %rbp d: 48 89 e5 mov %rsp,%rbp 10: 48 83 ec 20 sub $0x20,%rsp 14: 48 rex.W 15: 89 .byte 0x89 [ T3402] RSP: 002b:00007ffce58c2ef8 EFLAGS: 00000202=0D [ T3402] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f12ca638c94= =0D [ T3402] RDX: 0000000000000002 RSI: 000055b5493b8490 RDI: 0000000000000001= =0D [ T3402] RBP: 00007ffce58c2f20 R08: 0000000000000410 R09: 0000000000000001= =0D [ T3402] R10: 0000000000000004 R11: 0000000000000202 R12: 0000000000000002= =0D [ T3402] R13: 000055b5493b8490 R14: 00007f12ca7095c0 R15: 00007f12ca706f20= =0D [ T3402] =0D [ T3402] Kernel Offset: disabled=0D [ T3402] ---[ end Kernel panic - not syncing: sysrq triggered crash ]---=0D --=20 Sincerly, John Wyatt Software Engineer, Core Kernel