[Bug 1942215] Re: OOPs on boot: invalid opcode: 0000 [#1] SMP NOPTI
This bug is awaiting verification that the linux- oracle-5.15/5.15.0-1006.8~20.04.1 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-focal' to 'verification-done-focal'. If the problem still exists, change the tag 'verification-needed-focal' to 'verification-failed-focal'. If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: verification-needed-focal -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1942215 Title: OOPs on boot: invalid opcode: [#1] SMP NOPTI To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1942215/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1942215] Re: OOPs on boot: invalid opcode: 0000 [#1] SMP NOPTI
This bug was fixed in the package linux - 5.15.0-17.17 --- linux (5.15.0-17.17) jammy; urgency=medium * jammy/linux: 5.15.0-17.17 -proposed tracker (LP: #1957809) -- Andrea Righi Thu, 13 Jan 2022 17:11:21 +0100 ** Changed in: linux (Ubuntu) Status: Incomplete => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1942215 Title: OOPs on boot: invalid opcode: [#1] SMP NOPTI To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1942215/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1942215]
Created attachment 1158 broken dsdt from notebook -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1942215 Title: OOPs on boot: invalid opcode: [#1] SMP NOPTI To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1942215/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1942215] Re: OOPs on boot: invalid opcode: 0000 [#1] SMP NOPTI
> Thanks Andrey, have you already upstreamed this patch? No. I'm transform it to: - if (!(walk_state->op_info->flags & AML_NO_OPERAND_RESOLVE)) { + if (!(walk_state->op_info->flags & AML_NO_OPERAND_RESOLVE) && walk_state->num_operands) { and succesfuly run kernel. if I return error here - ACPI leave hardware in unusable state. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1942215 Title: OOPs on boot: invalid opcode: [#1] SMP NOPTI To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1942215/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1942215] Re: OOPs on boot: invalid opcode: 0000 [#1] SMP NOPTI
Launchpad has imported 6 comments from the remote bug at https://bugs.acpica.org/show_bug.cgi?id=1545. If you reply to an imported comment from within Launchpad, your comment will be sent to the remote bug automatically. Read more about Launchpad's inter-bugtracker facilities at https://help.launchpad.net/InterBugTracking. On 2021-08-31T16:14:47+00:00 Colin Ian King wrote: Source: source/components/dispatcher/dswexec.c Function: AcpiDsExecEndOp The following call can be problematic if OpType is out of range: if (ACPI_SUCCESS (Status)) { /* * Dispatch the request to the appropriate interpreter handler * routine. There is one routine per opcode "type" based upon the * number of opcode arguments and return type. */ Status = AcpiGbl_OpTypeDispatch[OpType] (WalkState); } It has been observed that an invalid OpType in the Linux kernel has triggered a trap where and out of range OpType was caught at run time. Newer versions of gcc generate a trap on an out of range dispatch call with a ud2 opcode causing kernel oopses such as: [ 11.507260] RIP: 0010:acpi_ds_exec_end_op+0x187/0x774 [ 11.508771] Code: 77 28 48 8b 04 c5 00 9b ea 91 48 89 df ff d0 0f 1f 00 41 89 c4 e9 8f 00 00 00 0f b6 43 0d 8d 50 ff 48 63 d2 48 83 fa 09 76 02 <0f> 0b 83 c0 6c 0f b7 7b 0a 48 89 da 48 98 48 8d 34 c3 e8 c0 3c 01 [ 11.511898] RSP: 0018:aaeca1a776e0 EFLAGS: 00010286 [ 11.513428] RAX: RBX: 8f08a7573800 RCX: 0040 [ 11.514972] RDX: RSI: 91ea9980 RDI: 02cb [ 11.516100] RBP: aaeca1a77710 R08: R09: 8f08a8c84af0 [ 11.517479] R10: R11: 0003 R12: [ 11.518985] R13: 8f08a8c84af0 R14: R15: [ 11.520425] FS: 7f7fb403ed00() GS:8f348d5c() knlGS: [ 11.521931] CS: 0010 DS: ES: CR0: 80050033 [ 11.523424] CR2: 7f7fb38d1918 CR3: 000129b6a002 CR4: 007706e0 [ 11.524924] DR0: DR1: DR2: [ 11.526221] DR3: DR6: fffe0ff0 DR7: 0400 [ 11.527636] PKRU: 5554 [ 11.528820] Call Trace: [ 11.529807] acpi_ps_parse_loop+0x587/0x660 [ 11.531198] acpi_ps_parse_aml+0x1af/0x552 [ 11.532595] acpi_ps_execute_method+0x208/0x2ca [ 11.533972] acpi_ns_evaluate+0x34e/0x4f0 [ 11.535361] acpi_evaluate_object+0x18e/0x3b4 [ 11.536736] acpi_evaluate_dsm+0xb3/0x120 [ 11.537943] ? acpi_evaluate_dsm+0xb3/0x120 [ 11.539214] nfit_intel_shutdown_status+0xed/0x1b0 [nfit] [ 11.540603] acpi_nfit_add_dimm+0x3cb/0x670 [nfit] [ 11.541990] acpi_nfit_register_dimms+0x141/0x460 [nfit] [ 11.543377] acpi_nfit_init+0x54f/0x620 [nfit] [ 11.544755] acpi_nfit_add+0x192/0x1f0 [nfit] [ 11.546116] acpi_device_probe+0x49/0x170 I strongly suggest sanity out-of-bounds checks on the OpType before calling the dispatcher. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1942215/comments/6 On 2021-09-07T12:04:29+00:00 Colin Ian King wrote: There is a similar array underflow error in the code here: if (!(WalkState->OpInfo->Flags & AML_NO_OPERAND_RESOLVE)) { /* Resolve all operands */ Status = AcpiExResolveOperands (WalkState->Opcode, &(WalkState->Operands [WalkState->NumOperands -1]), WalkState); } WalkState->NumOperands - 1 in one specific case is -1 causing an oops. See: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1942215 - comment #8. A check something like the following is required: if (walk_state->num_operands - 1 >= ARRAY_SIZE(walk_state->operands)) { ACPI_ERROR((AE_INFO, " many operands 0x%X for op_type 0x%X", walk_state->num_operands - 1, op_type)); status = AE_AML_BAD_OPCODE; goto cleanup; } ..perhaps a walk_state->num_operands < 1 check is required to as the above fix handles the 0 - 1 > 0x wraparound as too many args. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1942215/comments/12 On 2021-09-07T14:57:06+00:00 Robert Moore wrote: Colin, I think there are many places where an invalid opcode will cause problems - it is simply such a serious problem that it is nearly impossible to catch all of the possible problems created. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1942215/comments/14 On 2021-09-07T15:38:25+00:00 Robert Moore wrote: In any case, the the DSDT that is posted in comment #4 show the problem? Reply at:
[Bug 1942215] Re: OOPs on boot: invalid opcode: 0000 [#1] SMP NOPTI
An Impish 5.13 test kernel is available here: https://people.canonical.com/~ppisati/lp1942215/ linux-image-unsigned-5.13.0-16-generic_5.13.0-16.16~lp1942215_amd64.deb linux-modules-5.13.0-16-generic_5.13.0-16.16~lp1942215_amd64.deb linux-modules-extra-5.13.0-16-generic_5.13.0-16.16~lp1942215_amd64.deb -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1942215 Title: OOPs on boot: invalid opcode: [#1] SMP NOPTI To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1942215/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1942215] Re: OOPs on boot: invalid opcode: 0000 [#1] SMP NOPTI
It may be be worth re-writing the check as follows to avoid underflow wrap: if (walk_state->num_operands < 1 || walk_state->num_operands >= ARRAY_SIZE(walk_state->operands) + 1) { ACPI_ERROR((AE_INFO, "Illegal number of operands 0x%X for op_type 0x%X", walk_state->num_operands - 1, op_type)); status = AE_AML_BAD_OPCODE; goto cleanup; } Note: if a fix is sent upstream they will nack-it on the ARRAY_SIZE() macro because the ACPCIA core does not support this macro and the code is derived from that code base. I've added notes to the upstream ACPICA bug report so that it will get fixed using their coding standards. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1942215 Title: OOPs on boot: invalid opcode: [#1] SMP NOPTI To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1942215/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1942215] Re: OOPs on boot: invalid opcode: 0000 [#1] SMP NOPTI
Thanks Andrey, have you already upstreamed this patch? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1942215 Title: OOPs on boot: invalid opcode: [#1] SMP NOPTI To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1942215/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1942215] Re: OOPs on boot: invalid opcode: 0000 [#1] SMP NOPTI
** Attachment added: "Vought dmesg with operands overflow applied" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1942215/+attachment/5523471/+files/dmesg.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1942215 Title: OOPs on boot: invalid opcode: [#1] SMP NOPTI To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1942215/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1942215] Re: OOPs on boot: invalid opcode: 0000 [#1] SMP NOPTI
Not sufficient. There is another BUG() hidden at line 398: status = acpi_ex_resolve_operands(walk_state->opcode, &(walk_state->operands[walk_state->num_operands - 1]), walk_state); in `walk_state->operands[]` array referencing. After adding same guard for walk_state->operands[] if (walk_state->num_operands - 1 >= ARRAY_SIZE(walk_state->operands)) { ACPI_ERROR((AE_INFO, "Too many operands 0x%X for op_type 0x%X", walk_state->num_operands - 1, op_type)); status = AE_AML_BAD_OPCODE; goto cleanup; } got in dmesg: -- cut-- [1.121664] acpi ABCD:00: ACPI dock station (docks/bays count: 1) [1.125182] ACPI: PM: Power Resource [PX06] [1.125182] ACPI Error: Too many operands 0x for op_type 0x0 (20210604/dswexec-397) [1.125182] No Local Variables are initialized for Method [RREG] [1.125311] Initialized Arguments for Method [RREG]: (3 arguments defined for method invocation) [1.125450] Arg0: 2d6b3afdInteger FE028000 [1.125588] Arg1: 78d25d8cInteger 0001 [1.125591] Arg2: 0bca9f52Integer [1.125591] ACPI Error: Aborting method \_SB.PCI0.GEXP.RREG due to previous error (AE_AML_BAD_OPCODE) (20210604/psparse-529) [1.125591] ACPI Error: Aborting method \_SB.PCI0.GEXP.CSER due to previous error (AE_AML_BAD_OPCODE) (20210604/psparse-529) [1.125591] ACPI Error: Aborting method \_SB.PCI0.GEXP.GEPS due to previous error (AE_AML_BAD_OPCODE) (20210604/psparse-529) [1.125591] ACPI Error: Aborting method \_SB.PCI0.XHC.RHUB.HS06.PX06._STA due to previous error (AE_AML_BAD_OPCODE) (20210604/psparse-529) [1.125591] ACPI Error: Too many operands 0x for op_type 0x0 (20210604/dswexec-397) [1.125591] No Local Variables are initialized for Method [RREG] [1.125591] Initialized Arguments for Method [RREG]: (3 arguments defined for method invocation) [1.125591] Arg0: 6c708c99Integer FE028000 [1.125703] Arg1: 78d25d8cInteger 0001 [1.125838] Arg2: d8c7f611Integer [1.126062] ACPI Error: Aborting method \_SB.PCI0.GEXP.RREG due to previous error (AE_AML_BAD_OPCODE) (20210604/psparse-529) [1.126213] ACPI Error: Aborting method \_SB.PCI0.GEXP.CSER due to previous error (AE_AML_BAD_OPCODE) (20210604/psparse-529) [1.126366] ACPI Error: Aborting method \_SB.PCI0.GEXP.GEPS due to previous error (AE_AML_BAD_OPCODE) (20210604/psparse-529) [1.126517] ACPI Error: Aborting method \_SB.PCI0.XHC.RHUB.HS06.PX06._STA due to previous error (AE_AML_BAD_OPCODE) (20210604/psparse-529) -- cut-- have classical underflow here. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1942215 Title: OOPs on boot: invalid opcode: [#1] SMP NOPTI To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1942215/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1942215] Re: OOPs on boot: invalid opcode: 0000 [#1] SMP NOPTI
a478d9baea4e UBUNTU: [Config] Enable CONFIG_UBSAN_BOUNDS is the commit that triggers the above "invalid opcode" on boot (and makes it impossible to reboot the box). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1942215 Title: OOPs on boot: invalid opcode: [#1] SMP NOPTI To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1942215/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1942215] Re: OOPs on boot: invalid opcode: 0000 [#1] SMP NOPTI
** Tags added: patch -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1942215 Title: OOPs on boot: invalid opcode: [#1] SMP NOPTI To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1942215/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1942215] Re: OOPs on boot: invalid opcode: 0000 [#1] SMP NOPTI
Potential workaround/fix attached ** Patch added: "kernel patch" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1942215/+attachment/5521900/+files/0001-ACPICA-detect-and-handle-invalid-op_type-before-call.patch -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1942215 Title: OOPs on boot: invalid opcode: [#1] SMP NOPTI To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1942215/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1942215] Re: OOPs on boot: invalid opcode: 0000 [#1] SMP NOPTI
** Bug watch added: bugs.acpica.org/ #1545 https://bugs.acpica.org/show_bug.cgi?id=1545 ** Also affects: linux via https://bugs.acpica.org/show_bug.cgi?id=1545 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1942215 Title: OOPs on boot: invalid opcode: [#1] SMP NOPTI To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1942215/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1942215] Re: OOPs on boot: invalid opcode: 0000 [#1] SMP NOPTI
I suspect the op_type in the dispatcher call status = acpi_gbl_op_type_dispatch[op_type] is out of range. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1942215 Title: OOPs on boot: invalid opcode: [#1] SMP NOPTI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1942215/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1942215] Re: OOPs on boot: invalid opcode: 0000 [#1] SMP NOPTI
Original source ./drivers/acpi/acpica/dswexec.c in acpi_ds_exec_end_op if (ACPI_SUCCESS(status)) { /* * Dispatch the request to the appropriate interpreter handler * routine. There is one routine per opcode "type" based upon the * number of opcode arguments and return type. */ status = acpi_gbl_op_type_dispatch[op_type] (walk_state); } else { .. disassembled: if (!(walk_state->op_info->flags & AML_NO_OPERAND_RESOLVE)) { 683: 48 8b 83 10 04 00 00mov0x410(%rbx),%rax 68a: f6 40 11 40 testb $0x40,0x11(%rax) 68e: 74 21 je 6b1 * Dispatch the request to the appropriate interpreter handler * routine. There is one routine per opcode "type" based upon the * number of opcode arguments and return type. */ status = acpi_gbl_op_type_dispatch[op_type] (walk_state); 690: 44 89 f0mov%r14d,%eax 693: 41 80 fe 0b cmp$0xb,%r14b 697: 77 28 ja 6c1 699: 48 8b 04 c5 00 00 00mov0x0(,%rax,8),%rax 6a0: 00 6a1: 48 89 dfmov%rbx,%rdi 6a4: e8 00 00 00 00 call 6a9 6a9: 41 89 c4mov%eax,%r12d 6ac: e9 8f 00 00 00 jmp740 [walk_state-> 6b1: 0f b6 43 0d movzbl 0xd(%rbx),%eax num_operands - 1]), 6b5: 8d 50 fflea-0x1(%rax),%edx [walk_state-> 6b8: 48 63 d2movslq %edx,%rdx 6bb: 48 83 fa 09 cmp$0x9,%rdx 6bf: 76 02 jbe6c3 6c1: 0f 0b ud2 ^^ crash on 0f 0b ud2 instruction From https://mudongliang.github.io/x86/html/file_module_x86_id_318.html ud2 does: "Generates an invalid opcode. This instruction is provided for software testing to explicitly generate an invalid opcode. The opcode for this instruction is reserved for this purpose. Other than raising the invalid opcode exception, this instruction is the same as the NOP instruction." -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1942215 Title: OOPs on boot: invalid opcode: [#1] SMP NOPTI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1942215/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1942215] Re: OOPs on boot: invalid opcode: 0000 [#1] SMP NOPTI
** Attachment added: "DSDT dump" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1942215/+attachment/5521894/+files/dsdt.dat -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1942215 Title: OOPs on boot: invalid opcode: [#1] SMP NOPTI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1942215/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1942215] Missing required logs.
This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window: apport-collect 1942215 and then change the status of the bug to 'Confirmed'. If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'. This change has been made by an automated script, maintained by the Ubuntu Kernel Team. ** Changed in: linux (Ubuntu) Status: New => Incomplete ** Tags added: impish -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1942215 Title: OOPs on boot: invalid opcode: [#1] SMP NOPTI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1942215/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1942215] Re: OOPs on boot: invalid opcode: 0000 [#1] SMP NOPTI
Full dmesg with proper indentation is available here: https://paste.ubuntu.com/p/qbhf4fTMdQ/ FWTS --dump tarball is here: https://people.canonical.com/~ppisati/vough-acpi.tgz ** Also affects: linux (Ubuntu Impish) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1942215 Title: OOPs on boot: invalid opcode: [#1] SMP NOPTI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1942215/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1942215] [NEW] OOPs on boot: invalid opcode: 0000 [#1] SMP NOPTI
are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1942215 Title: OOPs on boot: invalid opcode: [#1] SMP NOPTI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1942215/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs