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Linux kernel source tree
1c4c769cdf
mlx5 add IRQs to rmap upon MSIX request, and mlx5 remove rmap from
MSIX only if msi_map.index is populated. However, msi_map.index is
populated only when dynamic MSIX is supported. This results in freeing
IRQs without removing them from rmap, which triggers the bellow
WARN_ON[1].
rmap is a feature which have no relation to dynamic MSIX.
Hence, remove the check of msi_map.index when removing IRQ from rmap.
[1]
[ 200.307160 ] WARNING: CPU: 20 PID: 1702 at kernel/irq/manage.c:2034 free_irq+0x2ac/0x358
[ 200.316990 ] CPU: 20 PID: 1702 Comm: modprobe Not tainted 6.4.0-rc3_for_upstream_min_debug_2023_05_24_14_02 #1
[ 200.318939 ] Hardware name: QEMU KVM Virtual Machine, BIOS 0.0.0 02/06/2015
[ 200.321659 ] pc : free_irq+0x2ac/0x358
[ 200.322400 ] lr : free_irq+0x20/0x358
[ 200.337865 ] Call trace:
[ 200.338360 ] free_irq+0x2ac/0x358
[ 200.339029 ] irq_release+0x58/0xd0 [mlx5_core]
[ 200.340093 ] mlx5_irqs_release_vectors+0x80/0xb0 [mlx5_core]
[ 200.341344 ] destroy_comp_eqs+0x120/0x170 [mlx5_core]
[ 200.342469 ] mlx5_eq_table_destroy+0x1c/0x38 [mlx5_core]
[ 200.343645 ] mlx5_unload+0x8c/0xc8 [mlx5_core]
[ 200.344652 ] mlx5_uninit_one+0x78/0x118 [mlx5_core]
[ 200.345745 ] remove_one+0x80/0x108 [mlx5_core]
[ 200.346752 ] pci_device_remove+0x40/0xd8
[ 200.347554 ] device_remove+0x50/0x88
[ 200.348272 ] device_release_driver_internal+0x1c4/0x228
[ 200.349312 ] driver_detach+0x54/0xa0
[ 200.350030 ] bus_remove_driver+0x74/0x100
[ 200.350833 ] driver_unregister+0x34/0x68
[ 200.351619 ] pci_unregister_driver+0x28/0xa0
[ 200.352476 ] mlx5_cleanup+0x14/0x2210 [mlx5_core]
[ 200.353536 ] __arm64_sys_delete_module+0x190/0x2e8
[ 200.354495 ] el0_svc_common.constprop.0+0x6c/0x1d0
[ 200.355455 ] do_el0_svc+0x38/0x98
[ 200.356122 ] el0_svc+0x1c/0x80
[ 200.356739 ] el0t_64_sync_handler+0xb4/0x130
[ 200.357604 ] el0t_64_sync+0x174/0x178
[ 200.358345 ] ---[ end trace 0000000000000000 ]---
Fixes:
|
||
|---|---|---|
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| rust | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .rustfmt.toml | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.