XPost: linux.debian.bugs.dist, linux.kernel 
 From: lists+debian@aero2k.de 
  
 On 9/25/25 00:10, Thomas Gleixner wrote: 
 >> # cat /proc/cmdline 
 >> BOOT_IMAGE=/vmlinuz-6.1.0-40-amd64 root=/dev/mapper/thecube--vg-root ro 
 quiet intel_iommu=off intel_idle.max_cstate=2 
 >> 
 >> # cat /sys/devices/system/cpu/cpuidle/current_driver 
 >> intel_idle 
 >> 
 >> # ls -l /sys/devices/system/cpu/cpu0/cpuidle/ 
 >> insgesamt 0 
 >> drwxr-xr-x 2 root root 0 24. Sep 19:14 state0 
 >> drwxr-xr-x 3 root root 0 24. Sep 19:14 state1 
 >> drwxr-xr-x 3 root root 0 24. Sep 19:14 state2 
 >> 
 >> # cat /sys/devices/system/cpu/cpu0/cpuidle/state*/name 
 >> POLL 
 >> C1 
 >> C1E 
 > What's the output for the above on 6.12? 
 > 
 All the same (apart from the cmdline of course). Btw, error appeared in the 
 morning (without intel_iommu=off), still without halting/crashing the 
 system. 
 Bugs me a little that I can't exactly reproduce the "crash to coldstart" 
 situation again. Just in 
 case someone sees something new: 
  
 # cat /proc/cmdline 
 BOOT_IMAGE=/vmlinuz-6.12.43+deb13-amd64 root=/dev/mapper/thecube--vg-root ro 
 quiet intel_idle.max_cstate=2 
  
  
 [Do Sep 25 07:15:50 2025] NMI: IOCK error (debug interrupt?) for reason 61 
 on 
 CPU 0. 
 [Do Sep 25 07:15:50 2025] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 
 6.12.43+deb13-amd64 #1€€ Debian 6.12.43-1 
 [Do Sep 25 07:15:50 2025] Hardware name: HP ProLiant MicroServer Gen8, BIOS 
 J06 04/04/2019 
 [Do Sep 25 07:15:50 2025] RIP: 0010:intel_idle+0x55/0x90 
 [Do Sep 25 07:15:50 2025] Code: 2d 5c 8c 40 00 eb 47 cc cc cc 48 89 f0 0f 1f 
 00 31 c9 48 89 ca 0f 01 c8 48 8b 06 a8 08 75 0b b9 01 00 00 00 4c 89 c0 0f 
 01 
 c9  80 66 02 df f0 83 44 24 fc 00 48 8b 06 a8 08 74 0b 65 81 25 a6 
 [Do Sep 25 07:15:50 2025] RSP: 0018:ffffffff97203e38 EFLAGS: 00000046 
 [Do Sep 25 07:15:50 2025] RAX: 0000000000000001 RBX: 0000000000000002 RCX: 
 0000000000000001 
 [Do Sep 25 07:15:50 2025] RDX: 0000000000000000 RSI: ffffffff97210940 RDI: 
 0000000000000002 
 [Do Sep 25 07:15:50 2025] RBP: ffff9a5b416400c0 R08: 0000000000000001 R09: 
 000000000001e83e 
 [Do Sep 25 07:15:50 2025] R10: ffff9a5b416347a4 R11: 071c71c71c71c71c R12: 
 ffffffff973b70c0 
 [Do Sep 25 07:15:50 2025] R13: ffffffff973b71a8 R14: 0000000000000002 R15: 
 0000000000000000 
 [Do Sep 25 07:15:50 2025] FS:€€ 0000000000000000(0000) GS:ffff9a 
 b41600000(0000) knlGS:0000000000000000 
 [Do Sep 25 07:15:50 2025] CS:€€ 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 
 [Do Sep 25 07:15:50 2025] CR2: 00007ffe16efe098 CR3: 0000000103a60005 CR4: 
 00000000001726f0 
 [Do Sep 25 07:15:50 2025] Call Trace: 
 [Do Sep 25 07:15:50 2025]€€  
 [Do Sep 25 07:15:50 2025]€€ cpuidle_enter_state+0x81/0x420 
 [Do Sep 25 07:15:50 2025]€€ cpuidle_enter+0x2d/0x40 
 [Do Sep 25 07:15:50 2025]€€ do_idle+0x1e5/0x240 
 [Do Sep 25 07:15:50 2025]€€ cpu_startup_entry+0x29/0x30 
 [Do Sep 25 07:15:50 2025]€€ rest_init+0xcc/0xd0 
 [Do Sep 25 07:15:50 2025]€€ start_kernel+0x74c/0x750 
 [Do Sep 25 07:15:50 2025]€€ x86_64_start_reservations+0x24/0x30 
 [Do Sep 25 07:15:50 2025]€€ x86_64_start_kernel+0x95/0xa0 
 [Do Sep 25 07:15:50 2025]€€ common_startup_64+0x13e/0x141 
 [Do Sep 25 07:15:50 2025]€€  
 [Do Sep 25 07:15:52 2025] NMI: IOCK error (debug interrupt?) for reason 61 
 on 
 CPU 0. 
 [Do Sep 25 07:15:52 2025] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 
 6.12.43+deb13-amd64 #1€€ Debian 6.12.43-1 
 [Do Sep 25 07:15:52 2025] Hardware name: HP ProLiant MicroServer Gen8, BIOS 
 J06 04/04/2019 
 [Do Sep 25 07:15:52 2025] RIP: 0010:intel_idle+0x55/0x90 
 [Do Sep 25 07:15:52 2025] Code: 2d 5c 8c 40 00 eb 47 cc cc cc 48 89 f0 0f 1f 
 00 31 c9 48 89 ca 0f 01 c8 48 8b 06 a8 08 75 0b b9 01 00 00 00 4c 89 c0 0f 
 01 
 c9  80 66 02 df f0 83 44 24 fc 00 48 8b 06 a8 08 74 0b 65 81 25 a6 
 [Do Sep 25 07:15:52 2025] RSP: 0018:ffffffff97203e38 EFLAGS: 00000046 
 [Do Sep 25 07:15:52 2025] RAX: 0000000000000001 RBX: 0000000000000002 RCX: 
 0000000000000001 
 [Do Sep 25 07:15:52 2025] RDX: 0000000000000000 RSI: ffffffff97210940 RDI: 
 0000000000000002 
 [Do Sep 25 07:15:52 2025] RBP: ffff9a5b416400c0 R08: 0000000000000001 R09: 
 000000000001e83e 
 [Do Sep 25 07:15:52 2025] R10: ffff9a5b416347a4 R11: 071c71c71c71c71c R12: 
 ffffffff973b70c0 
 [Do Sep 25 07:15:52 2025] R13: ffffffff973b71a8 R14: 0000000000000002 R15: 
 0000000000000000 
 [Do Sep 25 07:15:52 2025] FS:€€ 0000000000000000(0000) GS:ffff9a 
 b41600000(0000) knlGS:0000000000000000 
 [Do Sep 25 07:15:52 2025] CS:€€ 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 
 [Do Sep 25 07:15:52 2025] CR2: 00007ffe16efe098 CR3: 0000000103a60005 CR4: 
 00000000001726f0 
 [Do Sep 25 07:15:52 2025] Call Trace: 
 [Do Sep 25 07:15:52 2025]€€  
 [Do Sep 25 07:15:52 2025]€€ cpuidle_enter_state+0x81/0x420 
 [Do Sep 25 07:15:52 2025]€€ cpuidle_enter+0x2d/0x40 
 [Do Sep 25 07:15:52 2025]€€ do_idle+0x1e5/0x240 
 [Do Sep 25 07:15:52 2025]€€ cpu_startup_entry+0x29/0x30 
 [Do Sep 25 07:15:52 2025]€€ rest_init+0xcc/0xd0 
 [Do Sep 25 07:15:52 2025]€€ start_kernel+0x74c/0x750 
 [Do Sep 25 07:15:52 2025]€€ x86_64_start_reservations+0x24/0x30 
 [Do Sep 25 07:15:52 2025]€€ x86_64_start_kernel+0x95/0xa0 
 [Do Sep 25 07:15:52 2025]€€ common_startup_64+0x13e/0x141 
 [Do Sep 25 07:15:52 2025]€€  
 [Do Sep 25 07:15:54 2025] NMI: IOCK error (debug interrupt?) for reason 61 
 on 
 CPU 0. 
 [Do Sep 25 07:15:54 2025] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 
 6.12.43+deb13-amd64 #1€€ Debian 6.12.43-1 
 [Do Sep 25 07:15:54 2025] Hardware name: HP ProLiant MicroServer Gen8, BIOS 
 J06 04/04/2019 
 [Do Sep 25 07:15:54 2025] RIP: 0010:intel_idle+0x55/0x90 
  
 [continued in next message] 
  
 --- SoupGate-Win32 v1.05 
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