And another quick question: on which systems does that happen? P9 (bare-metal or PowerVM) or P10 (PowerVM) or KVM on Power?
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2059237 Title: [Ubuntu-24.04] "array-index-out-of-bounds" error is observed after every reboot Status in The Ubuntu-power-systems project: Confirmed Status in linux package in Ubuntu: Confirmed Bug description: == Comment:- Kowshik Jois B S == ---Problem Description--- Below trace messges are observed in dmesg after every reboot. [ 0.474287] integrity: Unable to open file: /etc/keys/x509_evm.der (-2) [ 0.475750] Freeing unused kernel image (initmem) memory: 8832K [ 0.507388] Checked W+X mappings: passed, no W+X pages found [ 0.507400] Run /init as init process [ 0.507403] with arguments: [ 0.507404] /init [ 0.507405] with environment: [ 0.507406] HOME=/ [ 0.507407] TERM=linux [ 0.507408] BOOT_IMAGE=/vmlinux-6.8.0-11-generic [ 0.511892] ------------[ cut here ]------------ [ 0.511904] UBSAN: array-index-out-of-bounds in /build/linux-MzA0lF/linux-6.8.0/arch/powerpc/kernel/module_64.c:353:17 [ 0.511909] index 0 is out of range for type 'char [*]' [ 0.511912] CPU: 13 PID: 1 Comm: systemd Not tainted 6.8.0-11-generic #11-Ubuntu [ 0.511917] Hardware name: IBM,9080-HEX POWER10 (raw) 0x800200 0xf000006 of:IBM,FW1060.00 (NH1060_013) hv:phyp pSeries [ 0.511921] Call Trace: [ 0.511922] [c000000006683620] [c0000000016b2f28] dump_stack_lvl+0x70/0xb4 (unreliable) [ 0.511931] [c000000006683650] [c000000000c7bc58] __ubsan_handle_out_of_bounds+0xc4/0x12c [ 0.511938] [c000000006683700] [c00000000005d2a8] module_frob_arch_sections+0x4ec/0x8d0 [ 0.511943] [c0000000066837e0] [c0000000002b98cc] layout_and_allocate.isra.0+0x38/0x2a8 [ 0.511948] [c000000006683850] [c0000000002b9dec] load_module+0x138/0xca0 [ 0.511953] [c000000006683990] [c0000000002baca8] init_module_from_file+0xb4/0x14c [ 0.511958] [c000000006683a70] [c0000000002baf70] sys_finit_module+0x230/0x48c [ 0.511963] [c000000006683b80] [c000000000033248] system_call_exception+0xe8/0x240 [ 0.511967] [c000000006683e50] [c00000000000d15c] system_call_vectored_common+0x15c/0x2ec [ 0.511972] --- interrupt: 3000 at 0x7879b903b8a8 [ 0.511977] NIP: 00007879b903b8a8 LR: 0000000000000000 CTR: 0000000000000000 [ 0.511980] REGS: c000000006683e80 TRAP: 3000 Not tainted (6.8.0-11-generic) [ 0.511984] MSR: 800000000000f033 <SF,EE,PR,FP,ME,IR,DR,RI,LE> CR: 48222428 XER: 00000000 [ 0.511993] IRQMASK: 0 GPR00: 0000000000000161 00007fffd683b580 00007879b9166d00 0000000000000004 GPR04: 00007879b8e0c160 0000000000000004 0000000000000010 0000000000000004 GPR08: 0000000000000001 0000000000000000 0000000000000000 0000000000000000 GPR12: 0000000000000000 00007879b99d3a00 0000000020000000 0000000000020000 GPR16: 0000000000000000 0000000000000000 00001b5c7d7453e0 00007fffd683ba68 GPR20: 0000000000000000 0000000000000000 00001b5c82154ae0 00001b5c82142360 GPR24: 00007879b957f7b0 00001b5c82154ae0 0000000000000000 00001b5c82142160 GPR28: 00007879b8e0c160 0000000000020000 00001b5c82154ae0 00001b5c82142380 [ 0.512029] NIP [00007879b903b8a8] 0x7879b903b8a8 [ 0.512032] LR [0000000000000000] 0x0 [ 0.512034] --- interrupt: 3000 [ 0.512036] ---[ end trace ]--- [ 0.518326] systemd[1]: Inserted module 'autofs4' [ 0.521570] systemd[1]: systemd 255.2-3ubuntu2 running in system mode (+PAM +AUDIT +SELINUX +APPARMOR +IMA +SMACK +SECCOMP +GCRYPT -GNUTLS +OPENSSL +ACL +BLKID +CURL +ELFUTILS +FIDO2 +IDN2 -IDN +IPTC +KMOD +LIBCRYPTSETUP +LIBFDISK +PCRE2 -PWQUALITY +P11KIT +QRENCODE +TPM2 +BZIP2 +LZ4 +XZ +ZLIB +ZSTD -BPF_FRAMEWORK -XKBCOMMON +UTMP +SYSVINIT default-hierarchy=unified) [ 0.521583] systemd[1]: Detected virtualization powervm. [ 0.521589] systemd[1]: Detected architecture ppc64-le. [ 0.521593] systemd[1]: Running in initrd. [ 0.521743] systemd[1]: No hostname configured, using default hostname. [ 0.521789] systemd[1]: Hostname set to <localhost>. [ 0.521847] systemd[1]: Initializing machine ID from random generator. [ 0.600736] systemd[1]: Queued start job for default target initrd.target. Machine Type = P10 LPAR Contact Information = Kowshik Jois B S kowshik.j...@in.ibm.com ---Steps to Reproduce--- 1. reboot the system 2. Once the system is booted back, look at dmesg ---uname output--- Linux ubuntu2404 6.8.0-11-generic #11-Ubuntu SMP Wed Feb 14 00:33:03 UTC 2024 ppc64le ppc64le ppc64le GNU/Linux Additional Information: Same trace messages are seen on L2 guest as well. == Comment: - Kowshik Jois B S == Hello Likhitha, The ubuntu bug https://bugs.launchpad.net/ubuntu/+source/virtinst/+bug/2055126 was created for tracking a different issue which is resolved. I just posted a question about this issue as well at the end. But its been 20 days and we haven't heard anything back on that. Also, the bug is already closed. So I think it makes sense to initiate a new discussion with ubuntu on this issue. Earlier I had initiated a discussion through https://bugs.launchpad.net/ubuntu/+bug/2052767 but no updates on that one as well till now. As you mentioned, compiled upstream kernel by disabling the UBSAN in the config. As expected I am not seeing the issue is getting recreated anymore with that. But the ubuntu ISO will have this configs enabled by default and we will still see this issue on ubuntu default kernel. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/2059237/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
