Control: tags -1 + moreinfo On Thu, Oct 02, 2025 at 07:05:55AM +0200, Laurentiu Pancescu wrote: > Package: src:linux > Version: 6.12.48-1 > Severity: normal > X-Debbugs-Cc: [email protected] > > Dear Maintainer, > > I'm getting the following warning on the current stable kernel (oldstable > doesn't show this issue): > > ct 02 06:15:53 snowbell kernel: WARNING: CPU: 1 PID: 0 at > arch/x86/kernel/cpu/cpuid-deps.c:117 do_clear_cpu_cap+0xde/0x130 > Oct 02 06:15:53 snowbell kernel: Modules linked in: > Oct 02 06:15:53 snowbell kernel: CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not > tainted 6.12.48+deb13-amd64 #1 Debian 6.12.48-1 > Oct 02 06:15:53 snowbell kernel: Hardware name: ASUSTeK Computer INC. > 1005PE/1005P, BIOS 1202 06/23/2010 > Oct 02 06:15:53 snowbell kernel: RIP: 0010:do_clear_cpu_cap+0xde/0x130 > Oct 02 06:15:53 snowbell kernel: Code: 24 60 65 48 2b 04 25 28 00 00 00 75 67 > 48 83 c4 68 5b 5d 41 5c 41 5d c3 cc cc cc cc 8b 15 4a 46 e0 01 85 d2 0f 84 6e > ff ff ff <0f> 0b e9 67 ff ff ff 48 c7 c7 20 36 86 ac e8 0f ff ff ff f0 4c 0f > Oct 02 06:15:53 snowbell kernel: RSP: 0000:ffffade7c00d7e10 EFLAGS: 00010002 > Oct 02 06:15:53 snowbell kernel: RAX: 0000000000000000 RBX: ffffade7c00d7e10 > RCX: 0000000000000000 > Oct 02 06:15:53 snowbell kernel: RDX: 0000000000000001 RSI: 0000000000000070 > RDI: ffffade7c00d7e70 > Oct 02 06:15:53 snowbell kernel: RBP: 0000000000000070 R08: 0000000000000000 > R09: ffffade7c00d7c70 > Oct 02 06:15:53 snowbell kernel: R10: ffffffffac6b43a8 R11: 0000000000000003 > R12: 0000000000000000 > Oct 02 06:15:53 snowbell kernel: R13: 0000000000000000 R14: 0000000000000000 > R15: 0000000000000000 > Oct 02 06:15:53 snowbell kernel: FS: 0000000000000000(0000) > GS:ffff9ba83d500000(0000) knlGS:0000000000000000 > Oct 02 06:15:53 snowbell kernel: CS: 0010 DS: 0000 ES: 0000 CR0: > 0000000080050033 > Oct 02 06:15:53 snowbell kernel: CR2: 0000000000000000 CR3: 000000006d822000 > CR4: 00000000000006f0 > Oct 02 06:15:53 snowbell kernel: Call Trace: > Oct 02 06:15:53 snowbell kernel: <TASK> > Oct 02 06:15:53 snowbell kernel: early_init_intel.cold+0x34/0x10c > Oct 02 06:15:53 snowbell kernel: init_intel+0x27/0x360 > Oct 02 06:15:53 snowbell kernel: identify_cpu+0x15e/0x5d0 > Oct 02 06:15:53 snowbell kernel: identify_secondary_cpu+0x12/0x40 > Oct 02 06:15:53 snowbell kernel: smp_store_cpu_info+0x49/0x60 > Oct 02 06:15:53 snowbell kernel: start_secondary+0x7f/0x140 > Oct 02 06:15:53 snowbell kernel: common_startup_64+0x13e/0x141 > Oct 02 06:15:53 snowbell kernel: </TASK> > Oct 02 06:15:53 snowbell kernel: ---[ end trace 0000000000000000 ]--- > Oct 02 06:15:53 snowbell kernel: ------------[ cut here ]------------ > Oct 02 06:15:53 snowbell kernel: WARNING: CPU: 1 PID: 0 at > arch/x86/kernel/cpu/cpuid-deps.c:117 do_clear_cpu_cap+0xde/0x130 > Oct 02 06:15:53 snowbell kernel: Modules linked in: > Oct 02 06:15:53 snowbell kernel: CPU: 1 UID: 0 PID: 0 Comm: swapper/1 > Tainted: G W 6.12.48+deb13-amd64 #1 Debian 6.12.48-1 > Oct 02 06:15:53 snowbell kernel: Tainted: [W]=WARN > Oct 02 06:15:53 snowbell kernel: Hardware name: ASUSTeK Computer INC. > 1005PE/1005P, BIOS 1202 06/23/2010 > Oct 02 06:15:53 snowbell kernel: RIP: 0010:do_clear_cpu_cap+0xde/0x130 > Oct 02 06:15:53 snowbell kernel: Code: 24 60 65 48 2b 04 25 28 00 00 00 75 67 > 48 83 c4 68 5b 5d 41 5c 41 5d c3 cc cc cc cc 8b 15 4a 46 e0 01 85 d2 0f 84 6e > ff ff ff <0f> 0b e9 67 ff ff ff 48 c7 c7 20 36 86 ac e8 0f ff ff ff f0 4c 0f > Oct 02 06:15:53 snowbell kernel: RSP: 0000:ffffade7c00d7d80 EFLAGS: 00010002 > Oct 02 06:15:53 snowbell kernel: RAX: 0000000000000000 RBX: ffffade7c00d7d80 > RCX: 0000000000000000 > Oct 02 06:15:53 snowbell kernel: RDX: 0000000000000001 RSI: 0000000000000070 > RDI: ffffade7c00d7de0 > Oct 02 06:15:53 snowbell kernel: RBP: 0000000000000070 R08: 0000000000000000 > R09: ffffade7c00d7c70 > Oct 02 06:15:53 snowbell kernel: R10: ffffffffac6b43a8 R11: 0000000000000003 > R12: ffffffffac863620 > Oct 02 06:15:53 snowbell kernel: R13: 0000000000000000 R14: 0000000000000000 > R15: 0000000000000000 > Oct 02 06:15:53 snowbell kernel: FS: 0000000000000000(0000) > GS:ffff9ba83d500000(0000) knlGS:0000000000000000 > Oct 02 06:15:53 snowbell kernel: CS: 0010 DS: 0000 ES: 0000 CR0: > 0000000080050033 > Oct 02 06:15:53 snowbell kernel: CR2: 0000000000000000 CR3: 000000006d822000 > CR4: 00000000000006f0 > Oct 02 06:15:53 snowbell kernel: Call Trace: > Oct 02 06:15:53 snowbell kernel: <TASK> > Oct 02 06:15:53 snowbell kernel: do_clear_cpu_cap+0x108/0x130 > Oct 02 06:15:53 snowbell kernel: early_init_intel.cold+0x34/0x10c > Oct 02 06:15:53 snowbell kernel: init_intel+0x27/0x360 > Oct 02 06:15:53 snowbell kernel: identify_cpu+0x15e/0x5d0 > Oct 02 06:15:53 snowbell kernel: identify_secondary_cpu+0x12/0x40 > Oct 02 06:15:53 snowbell kernel: smp_store_cpu_info+0x49/0x60 > Oct 02 06:15:53 snowbell kernel: start_secondary+0x7f/0x140 > Oct 02 06:15:53 snowbell kernel: common_startup_64+0x13e/0x141 > Oct 02 06:15:53 snowbell kernel: </TASK> > Oct 02 06:15:53 snowbell kernel: ---[ end trace 0000000000000000 ]---
Thanks for providing the full dmesg as well in he additional message. This is quite an old system. Can you please provide us as well the full dmesg while booting the most recent kernel in unstable available? 6.16.11-1 (as of this writing). I would be interested to see if it warns about unmet CPU feature dependencies. Regards, Salvatore
