[From nobody Tue Jul 7 20:27:05 2026 Received: (at submit) by bugs.debian.org; 13 May 2026 00:46:08 +0000 X-Spam-Checker-Version: SpamAssassin 4.0.1-bugs.debian.org_2005_01_02 (2024-03-25) on buxtehude.debian.org X-Spam-Level: X-Spam-Status: No, score=-13.9 required=4.0 tests=BAYES_00, BODY_INCLUDES_PACKAGE,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU, DKIM_VALID_EF,FOURLA,HAS_PACKAGE,RCVD_IN_DNSWL_LOW,SPF_HELO_PASS, SPF_PASS,WORD_WITHOUT_VOWELS autolearn=ham autolearn_force=no version=4.0.1-bugs.debian.org_2005_01_02 X-Spam-Bayes: score:0.0000 Tokens: new, 133; hammy, 150; neutral, 835; spammy, 0. spammytokens: hammytokens:0.000-+--forky, 0.000-+--HX-ME-Sender:xms, 0.000-+--HX-ME-Proxy:xmx, 0.000-+--HX-ME-Proxy-Cause:sk:gggrugg, 0.000-+--i915 Return-path: <michael@greenberg.science> Received: from fout-a4-smtp.messagingengine.com ([103.168.172.147]:37649) by buxtehude.debian.org with esmtps (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.96) (envelope-from <michael@greenberg.science>) id 1wMxjj-009yWO-34 for submit@bugs.debian.org; Wed, 13 May 2026 00:46:08 +0000 Received: from phl-compute-05.internal (phl-compute-05.internal [10.202.2.45]) by mailfout.phl.internal (Postfix) with ESMTP id CC8FBEC0245 for <submit@bugs.debian.org>; Tue, 12 May 2026 20:39:51 -0400 (EDT) Received: from phl-frontend-03 ([10.202.2.162]) by phl-compute-05.internal (MEProxy); Tue, 12 May 2026 20:39:51 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= greenberg.science; h=cc:content-transfer-encoding:content-type :content-type:date:date:from:from:in-reply-to:message-id :mime-version:reply-to:subject:subject:to:to; s=fm1; t= 1778632791; x=1778719191; bh=3FqEBzn0hrPmnxlldNZT0HPTUULxdhB4vdj lMxLhcuo=; b=BZXM65T00MYDcLtZUBQJwj1kntLMxvfeJTyR8QyEjnikcuPjyWv zVCMm8KXdswn0U2sYvjuLATxSdeP+dtPMRbcn7CaUz+p86WmoNq6jJqtVR2sHr7j 5oYwiGnixHqQtTRkzqG6rihKsGd6hnJvrvRvLMi4F88tR251PO+mVsxjfj6k7PW4 0x47L2Qvp3rpVfK1YUmxw3TPblKalO6yKuIu3LOONHElYFp03GlYC6KEAb7hLi+Z KzmXUdOfj3S/biB5uQfske25cbKv5X4ZEFzViFTWPgCVZDtaa5eo+WsPkiZ/kRTr vC9v+iKvLgSDShsQRR8StCHUdugxM2RTrQQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:content-type :content-type:date:date:feedback-id:feedback-id:from:from :in-reply-to:message-id:mime-version:reply-to:subject:subject:to :to:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s=fm3; t= 1778632791; x=1778719191; bh=3FqEBzn0hrPmnxlldNZT0HPTUULxdhB4vdj lMxLhcuo=; b=K27TBtihum7KLG7zi4itmydIwgziSLy+Xu5XD+SnacIGdYyLfrc BzGxzATW1M+6NOqjmmV9Gga+Y+gn/NfnOy/4Ply/dZ/BWabvceXqzYFTxCD8RPLv Fkveqo1O0BBdbZI2CnIlJ5maVSU93jaquop7iuMdhh4BOfFlzL1zwvwPivBYRnHV lTcJHhQd4TfJN8xJuEwP8cgzKz6W4HXpudV7E47J8lYiYbrZj3tNdhf4uZiPh1cr r1NsSWQOoTl0wXagUtXInAQHOhUuhktqfIeyywYqpqB8jCvROOnfncR8vaQ8i2Qx KuhWLHm2U8oqYkcWRnKieuAyq+QyqJB/aMA== X-ME-Sender: <xms:V8gDakaNcYYEPUiQXPHyKxdALzxVqKmO06-KBKe9eIhk54zKYu7u6Q> <xme:V8gDahZ28K_tBfQExWKod_xJPivjAcGV7bEFfmRlb3P_MlbnjyISOkeghVjJyWmh6 6j_d3R4Fh7RpMrhD1-INiii0DgVbS2YTrEJlsgKRiE8RNmAZAP5_AYL> X-ME-Received: <xmr:V8gDaoWMN0w4Hej9pmLB3Egy-5vS3gpVE1-4Gu0hkuhKVAhH-NEZ0CS7bUt89gmLUcEnwgUad5gfkHT9qZEHZD-OM7qwS2nUvgd_Kw> X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeefhedrtddtgdduvdefvdeiucetufdoteggodetrf dotffvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfurfetoffkrfgpnffqhgenuceu rghilhhouhhtmecufedttdenucenucfjughrpefhvffufffkgggtgfesthhqredttddtje enucfhrhhomhepofhitghhrggvlhcuifhrvggvnhgsvghrghcuoehmihgthhgrvghlsehg rhgvvghnsggvrhhgrdhstghivghntggvqeenucggtffrrghtthgvrhhnpeduieejvdefhe eugefgteevjeejfefgiedvffdtueelieehteeffeeghfejleeihfenucevlhhushhtvghr ufhiiigvpedtnecurfgrrhgrmhepmhgrihhlfhhrohhmpehmihgthhgrvghlsehgrhgvvg hnsggvrhhgrdhstghivghntggvpdhnsggprhgtphhtthhopedupdhmohguvgepshhmthhp ohhuthdprhgtphhtthhopehsuhgsmhhithessghughhsrdguvggsihgrnhdrohhrgh X-ME-Proxy: <xmx:V8gDag1Ip93YTErthRb9cX05UYJYZPXNyWdZiZVsgirYClFIGxDinA> <xmx:V8gDanZInB4_7d97sPCHOMJa9SRFvSOG5wMTNpV5N0BMfTMJMKkZzA> <xmx:V8gDarrna6FJn4hM1Mvy1AToZUUTZd-bsZUJ71l0EKISQAbJwABSFQ> <xmx:V8gDarplLnH18Wh2ZcOhee72EOvtHqjVAPyAibIBs6Qn0FNfzh8OgA> <xmx:V8gDarupf01ilKCmkBps6zC80Ch03PbCps-nhzUxaTRcIx84ARsF24dl> Feedback-ID: ib2794684:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA for <submit@bugs.debian.org>; Tue, 12 May 2026 20:39:51 -0400 (EDT) From: Michael Greenberg <michael@greenberg.science> To: submit@bugs.debian.org Subject: Kernel panic on boot with linux-image-7.0.4+deb14-amd64 Date: Tue, 12 May 2026 20:39:51 -0400 Message-ID: <87ik8sm9bc.fsf@hippogriff> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Greylist: delayed 372 seconds by postgrey-1.37 at buxtehude; Wed, 13 May 2026 00:46:07 UTC Delivered-To: submit@bugs.debian.org Package: linux-image-7.0.4+deb14-amd64 Version: 7.0.4-1 Severity: critical On booting the new kernel, my kernel panicked. Here is the message (with the kernel boot sequence timestamps elided). NB that this is necessarily transcribed, as the fatal error happened when mounting the root VFS (and so nothing could be written to disk): ``` ACPI BIOS Error (bug): Failure creating named object [\_SB.PC00.RP05.PXSX._DSM], AE_ALREADY_EXISTS (20251212/dswload2-326) ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog (20251212/psobject-220) ACPI BIOS Error (bug): Failure creating named object [\_SB.PC00.SAT0.PRT0.PWRG], AE_ALREADY_EXISTS (20251212/dswload2-326) ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog (20251212/psobject-220) /dev/root: Can't open blockdev Lits of all bdev filesystems: fuseblk Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Tainted: G S 7.0.4+deb14-amd64 #1 PREEMPTY(lazy) Debian 7.0.4-1 Tainted: [S]=3DCPU_OUT_OF_SPEC Hardware name: LENOVO 20Y3003XUS/20Y3003XUS, BIOS N40ET38W (1.20 ) 10/06/2022 Call Trace: <TASK> dupm_stack_lvl+0x5d/0x80 vpanic+0x24b/0x450 panic+0x6b/0x70 mount_root_generic+0x1cf/0x270 prepare_namespace+0x1d1/0x270 kernel_init_freeable+0x2f3/0x320 ? __pfx_kernel_init+0x10/0x10 kernel_init+0x1a/0x130 ret_from_fork+0x2c7/0x350 ? __pfx_kernel_init+0x10/0x10 ret_from_fork_asm+0x1a/0x30 </TASK> Kernel Offset: 0x13600000 from 0xfffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) ---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) ]--- ``` NB that the first few ACPI messages seem to be benign (they occur with 6.x kernels, which boot just fine). My arrangement of drives is completely conventional (nvme0n1p3 is a Windows partition): ``` $ lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS nvme0n1 259:0 0 1.9T 0 disk=20 =E2=94=9C=E2=94=80nvme0n1p1 259:1 0 260M 0 part /boot/efi =E2=94=9C=E2=94=80nvme0n1p2 259:2 0 16M 0 part=20 =E2=94=9C=E2=94=80nvme0n1p3 259:3 0 929.9G 0 part=20 =E2=94=9C=E2=94=80nvme0n1p4 259:4 0 1000M 0 part=20 =E2=94=9C=E2=94=80nvme0n1p5 259:5 0 89.4G 0 part [SWAP] =E2=94=94=E2=94=80nvme0n1p6 259:6 0 887.2G 0 part / $ findmnt TARGET SOURCE FSTYPE OPTIONS / /dev/nvme0n1p6 =E2=94=82 ext4 rw,relatime,errors=3Drem= ount-ro =E2=94=9C=E2=94=80/sys sysfs sysfs rw,nosuid,nodev,= noexec,relatime =E2=94=82 =E2=94=9C=E2=94=80/sys/firmware/efi/efivars =E2=94=82 =E2=94=82 efivarfs efivarfs rw,nosuid,nodev,= noexec,relatime =E2=94=82 =E2=94=9C=E2=94=80/sys/kernel/security =E2=94=82 =E2=94=82 securityfs =E2=94=82 =E2=94=82 security rw,nosuid,nodev,= noexec,relatime =E2=94=82 =E2=94=9C=E2=94=80/sys/fs/cgroup cgroup2 cgroup2 rw,nosui= d,nodev,noexec,relatime,nsdelegate,memory_recur =E2=94=82 =E2=94=9C=E2=94=80/sys/fs/pstore none pstore rw,nosui= d,nodev,noexec,relatime =E2=94=82 =E2=94=9C=E2=94=80/sys/fs/bpf bpf bpf rw,nosui= d,nodev,noexec,relatime,mode=3D700 =E2=94=82 =E2=94=9C=E2=94=80/sys/kernel/debug debugfs debugfs rw,nosui= d,nodev,noexec,relatime =E2=94=82 =E2=94=9C=E2=94=80/sys/kernel/tracing tracefs tracefs rw,nosui= d,nodev,noexec,relatime =E2=94=82 =E2=94=9C=E2=94=80/sys/fs/fuse/connections =E2=94=82 =E2=94=82 fusectl fusectl rw,nosuid,nodev,= noexec,relatime =E2=94=82 =E2=94=94=E2=94=80/sys/kernel/config configfs configfs rw,nosui= d,nodev,noexec,relatime =E2=94=9C=E2=94=80/proc proc proc rw,nosuid,nodev,= noexec,relatime =E2=94=82 =E2=94=9C=E2=94=80/proc/sys/fs/binfmt_misc =E2=94=82 =E2=94=82 =E2=94=82 systemd-1 autofs rw,relat= ime,fd=3D43,pgrp=3D1,timeout=3D0,minproto=3D5,maxproto=3D =E2=94=82 =E2=94=82 =E2=94=94=E2=94=80/proc/sys/fs/binfmt_misc =E2=94=82 =E2=94=82 binfmt_misc =E2=94=82 =E2=94=82 binfmt_m rw,nosuid,nodev,= noexec,relatime =E2=94=82 =E2=94=94=E2=94=80/proc/fs/nfsd nfsd nfsd rw,relat= ime =E2=94=9C=E2=94=80/dev udev devtmpfs rw,nosuid,relati= me,size=3D32690468k,nr_inodes=3D8172617,mod =E2=94=82 =E2=94=9C=E2=94=80/dev/pts devpts devpts rw,nosui= d,noexec,relatime,gid=3D5,mode=3D600,ptmxmode=3D000 =E2=94=82 =E2=94=9C=E2=94=80/dev/shm tmpfs tmpfs rw,nosui= d,nodev,inode64 =E2=94=82 =E2=94=9C=E2=94=80/dev/mqueue mqueue mqueue rw,nosui= d,nodev,noexec,relatime =E2=94=82 =E2=94=94=E2=94=80/dev/hugepages hugetlbfs hugetlbf rw,nosui= d,nodev,relatime,pagesize=3D2M =E2=94=9C=E2=94=80/run tmpfs tmpfs rw,nosuid,nodev,= noexec,relatime,size=3D6554576k,mode=3D755, =E2=94=82 =E2=94=9C=E2=94=80/run/credentials/systemd-journald.service =E2=94=82 =E2=94=82 none tmpfs ro,nosuid,nodev,= noexec,relatime,nosymfollow,size=3D1024k, =E2=94=82 =E2=94=9C=E2=94=80/run/rpc_pipefs sunrpc rpc_pipe rw,relat= ime =E2=94=82 =E2=94=9C=E2=94=80/run/user/1000 tmpfs tmpfs rw,nosui= d,nodev,relatime,size=3D6554572k,nr_inodes=3D163864 =E2=94=82 =E2=94=82 =E2=94=94=E2=94=80/run/user/1000/doc =E2=94=82 =E2=94=82 portal fuse.por rw,nosuid,nodev,= relatime,user_id=3D1000,group_id=3D1000 =E2=94=82 =E2=94=94=E2=94=80/run/credentials/getty@tty1.service =E2=94=82 none tmpfs ro,nosuid,nodev,noexec,r= elatime,nosymfollow,size=3D1024k, =E2=94=9C=E2=94=80/boot/efi /dev/nvme0n1p1 =E2=94=82 vfat rw,relatime,fmask=3D0077= ,dmask=3D0077,codepage=3D437,iocharse =E2=94=94=E2=94=80/tmp tmpfs tmpfs rw,nosuid,nodev,size=3D32772872k,nr_inodes=3D1048576,inode6 ``` I'm not sure what is precisely meant by CPU out of spec, but I've included the output of `lscpu` below. Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Address sizes: 39 bits physical, 48 bits virtual Byte Order: Little Endian CPU(s): 12 On-line CPU(s) list: 0-11 Vendor ID: GenuineIntel Model name: Intel(R) Xeon(R) W-11855M CPU @ 3.= 20GHz CPU family: 6 Model: 141 Thread(s) per core: 2 Core(s) per socket: 6 Socket(s): 1 Stepping: 1 Microcode version: 0x3e CPU(s) scaling MHz: 21% CPU max MHz: 4900.0000 CPU min MHz: 800.0000 BogoMIPS: 6374.40 Flags: fpu vme de pse tsc msr pae mce cx8= apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss= ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc art arch_perfmon pebs = bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf tsc_known_freq pni= pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 sdbg fma cx16 xtpr p= dcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx= f16c rdrand lahf_lm abm 3dnowprefetch cpuid_fault epb cat_l2 cdp_l2 ssbd i= brs ibpb stibp ibrs_enhanced tpr_shadow flexpriority ept vpid ept_ad fsgsba= se tsc_adjust bmi1 avx2 smep bmi2 erms invpcid rdt_a avx512f avx512dq rdsee= d adx smap avx512ifma clflushopt clwb intel_pt avx512cd sha_ni avx512bw avx= 512vl xsaveopt xsavec xgetbv1 xsaves split_lock_detect user_shstk dtherm id= a arat pln pts hwp hwp_notify hwp_act_window hwp_epp hwp_pkg_req vnmi avx51= 2vbmi umip pku ospke avx512_vbmi2 gfni vaes vpclmulqdq avx512_vnni avx512_b= italg avx512_vpopcntdq rdpid movdiri movdir64b fsrm avx512_vp2intersect md_= clear ibt flush_l1d arch_capabilities Virtualization: VT-x L1d cache: 288 KiB (6 instances) L1i cache: 192 KiB (6 instances) L2 cache: 7.5 MiB (6 instances) L3 cache: 18 MiB (1 instance) NUMA node(s): 1 NUMA node0 CPU(s): 0-11 Vulnerability Gather data sampling: Vulnerable: No microcode Vulnerability Ghostwrite: Not affected Vulnerability Indirect target selection: Mitigation; Aligned branch/return = thunks Vulnerability Itlb multihit: Not affected Vulnerability L1tf: Not affected Vulnerability Mds: Not affected Vulnerability Meltdown: Not affected Vulnerability Mmio stale data: Not affected Vulnerability Old microcode: Vulnerable Vulnerability Reg file data sampling: Not affected Vulnerability Retbleed: Not affected Vulnerability Spec rstack overflow: Not affected Vulnerability Spec store bypass: Mitigation; Speculative Store Bypa= ss disabled via prctl Vulnerability Spectre v1: Mitigation; usercopy/swapgs barrie= rs and __user pointer sanitization Vulnerability Spectre v2: Mitigation; Enhanced / Automatic I= BRS; IBPB conditional; PBRSB-eIBRS SW sequence; BHI SW loop, KVM SW loop Vulnerability Srbds: Not affected Vulnerability Tsa: Not affected Vulnerability Tsx async abort: Not affected Vulnerability Vmscape: Not affected And finally, in case I missed anything: ``` $ inxi -e System: Host: hippogriff Kernel: 6.19.14+deb14-amd64 arch: x86_64 bits: 64 Desktop: i3 v: 4.25.1 Distro: Debian GNU/Linux forky/sid Machine: Type: Laptop System: LENOVO product: 20Y3003XUS v: ThinkPad P1 Gen 4i serial: <superuser required> Mobo: LENOVO model: 20Y3003XUS v: SDK0T76457 WIN serial: <superuser required> Firmware: UEFI vendor: LENOVO v: N40ET38W (1.20 ) date: 10/06/2022 Battery: ID-1: BAT0 charge: 66 Wh (96.2%) condition: 68.7/90.1 Wh (76.2%) CPU: Info: 6-core model: Intel Xeon W-11855M bits: 64 type: MT MCP cache: L2: 7.5 MiB Speed (MHz): avg: 800 min/max: 800/4800:4900 cores: 1: 800 2: 800 3: 800 4: 800 5: 800 6: 800 7: 800 8: 800 9: 800 10: 800 11: 800 12: 800 Graphics: Device-1: Intel Tiger Lake-H GT1 [UHD Graphics] driver: i915 v: kernel Device-2: NVIDIA GA107GLM [RTX A2000 Mobile] driver: nvidia v: 550.163.01 Device-3: Luxvisions Innotech Integrated RGB Camera driver: uvcvideo type: USB Display: unspecified server: X.Org v: 21.1.22 driver: X: loaded: modesetting,nvidia unloaded: fbdev,nouveau,vesa dri: iris gpu: = i915 resolution: 1: 3840x2160~60Hz 2: 2560x1600~60Hz API: EGL v: 1.5 drivers: iris,kms_swrast,nvidia,swrast platforms: gbm,x11,surfaceless,device API: OpenGL v: 4.6.0 compat-v: 4.5 vendor: intel mesa v: 26.0.4-1 renderer: Mesa Intel UHD Graphics (TGL GT1) Info: Tools: api: eglinfo,glxinfo gpu: nvidia-settings,nvidia-smi x11: xdriinfo, xdpyinfo, xprop, xrandr Audio: Device-1: Intel Tiger Lake-H HD Audio driver: sof-audio-pci-intel-tgl Device-2: NVIDIA GA107 High Definition Audio driver: snd_hda_intel API: ALSA v: k6.19.14+deb14-amd64 status: kernel-api Server-1: PipeWire v: 1.6.4 status: active Network: Device-1: Intel Wi-Fi 6E AX210/AX1675 2x2 [Typhoon Peak] driver: iwlwifi IF: wlp9s0 state: up mac: f4:7b:09:3f:ea:94 Device-2: Realtek RTL8153 Gigabit Ethernet Adapter driver: r8152 type: USB IF: enxc84bd6c8a7bb state: down mac: c8:4b:d6:c8:a7:bb Drives: Local Storage: total: 1.86 TiB used: 305.41 GiB (16.0%) ID-1: /dev/nvme0n1 vendor: Samsung model: MZVL22T0HBLB-00BL7 size: 1.86 TiB Partition: ID-1: / size: 872.16 GiB used: 305.36 GiB (35.0%) fs: ext4 dev: /dev/nvme0n1p6 ID-2: /boot/efi size: 256 MiB used: 43 MiB (16.8%) fs: vfat dev: /dev/nvme0n1p1 Swap: ID-1: swap-1 type: partition size: 89.41 GiB used: 0 KiB (0.0%) dev: /dev/nvme0n1p5 Sensors: System Temperatures: cpu: 52.0 C mobo: N/A Fan Speeds (rpm): N/A Info: Memory: total: 64 GiB available: 62.51 GiB used: 5.15 GiB (8.2%) Processes: 337 Uptime: 22m Shell: Bash inxi: 3.3.40 ``` ]