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
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
> 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
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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
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,
Thanks Andrey, have you already upstreamed this patch?
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https://bugs.launchpad.net/bugs/1942215
Title:
OOPs on boot: invalid opcode: [#1] SMP NOPTI
To manage notifications about
** Attachment added: "Vought dmesg with operands overflow applied"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1942215/+attachment/5523471/+files/dmesg.log
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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
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).
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** Tags added: patch
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https://bugs.launchpad.net/bugs/1942215
Title:
OOPs on boot: invalid opcode: [#1] SMP NOPTI
To manage notifications about this bug go to:
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
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** 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
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I suspect the op_type in the dispatcher call status =
acpi_gbl_op_type_dispatch[op_type] is out of range.
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https://bugs.launchpad.net/bugs/1942215
Title:
OOPs on boot: invalid opcode:
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
** Attachment added: "DSDT dump"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1942215/+attachment/5521894/+files/dsdt.dat
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Title:
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
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