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| Filename | Latest commit message | Latest commit date |
|---|---|---|
4905bd9a42
Fix the warning below by calling the ptr_ring_consume_bh,
which uses spin_[un]lock_bh.
[ 179.064300] ================================
[ 179.069073] WARNING: inconsistent lock state
[ 179.073846] 4.18.0-rc2+ #18 Not tainted
[ 179.078133] --------------------------------
[ 179.082907] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
[ 179.089637] swapper/21/0 [HC0[0]:SC1[1]:HE1:SE0] takes:
[ 179.095478] 00000000963d1995 (&(&r->consumer_lock)->rlock){+.?.}, at:
__page_pool_empty_ring+0x61/0x100
[ 179.105988] {SOFTIRQ-ON-W} state was registered at:
[ 179.111443] _raw_spin_lock+0x35/0x50
[ 179.115634] __page_pool_empty_ring+0x61/0x100
[ 179.120699] page_pool_destroy+0x32/0x50
[ 179.125204] mlx5e_free_rq+0x38/0xc0 [mlx5_core]
[ 179.130471] mlx5e_close_channel+0x20/0x120 [mlx5_core]
[ 179.136418] mlx5e_close_channels+0x26/0x40 [mlx5_core]
[ 179.142364] mlx5e_close_locked+0x44/0x50 [mlx5_core]
[ 179.148509] mlx5e_close+0x42/0x60 [mlx5_core]
[ 179.153936] __dev_close_many+0xb1/0x120
[ 179.158749] dev_close_many+0xa2/0x170
[ 179.163364] rollback_registered_many+0x148/0x460
[ 179.169047] rollback_registered+0x56/0x90
[ 179.174043] unregister_netdevice_queue+0x7e/0x100
[ 179.179816] unregister_netdev+0x18/0x20
[ 179.184623] mlx5e_remove+0x2a/0x50 [mlx5_core]
[ 179.190107] mlx5_remove_device+0xe5/0x110 [mlx5_core]
[ 179.196274] mlx5_unregister_interface+0x39/0x90 [mlx5_core]
[ 179.203028] cleanup+0x5/0xbfc [mlx5_core]
[ 179.208031] __x64_sys_delete_module+0x16b/0x240
[ 179.213640] do_syscall_64+0x5a/0x210
[ 179.218151] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 179.224218] irq event stamp: 334398
[ 179.228438] hardirqs last enabled at (334398): [<ffffffffa511d8b7>]
rcu_process_callbacks+0x1c7/0x790
[ 179.239178] hardirqs last disabled at (334397): [<ffffffffa511d872>]
rcu_process_callbacks+0x182/0x790
[ 179.249931] softirqs last enabled at (334386): [<ffffffffa509732e>] irq_enter+0x5e/0x70
[ 179.259306] softirqs last disabled at (334387): [<ffffffffa509741c>] irq_exit+0xdc/0xf0
[ 179.268584]
[ 179.268584] other info that might help us debug this:
[ 179.276572] Possible unsafe locking scenario:
[ 179.276572]
[ 179.283877] CPU0
[ 179.286954] ----
[ 179.290033] lock(&(&r->consumer_lock)->rlock);
[ 179.295546] <Interrupt>
[ 179.298830] lock(&(&r->consumer_lock)->rlock);
[ 179.304550]
[ 179.304550] *** DEADLOCK ***
Fixes:
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| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| firmware | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| 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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.