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a23aa04042
We found the following dmesg calltrace when testing the GMAC NIC notebook:
[9.448656] ------------[ cut here ]------------
[9.448658] Unbalanced IRQ 43 wake disable
[9.448673] WARNING: CPU: 3 PID: 1083 at kernel/irq/manage.c:688 irq_set_irq_wake+0xe0/0x128
[9.448717] CPU: 3 PID: 1083 Comm: ethtool Tainted: G O 4.19 #1
[9.448773] ...
[9.448774] Call Trace:
[9.448781] [<9000000000209b5c>] show_stack+0x34/0x140
[9.448788] [<9000000000d52700>] dump_stack+0x98/0xd0
[9.448794] [<9000000000228610>] __warn+0xa8/0x120
[9.448797] [<9000000000d2fb60>] report_bug+0x98/0x130
[9.448800] [<900000000020a418>] do_bp+0x248/0x2f0
[9.448805] [<90000000002035f4>] handle_bp_int+0x4c/0x78
[9.448808] [<900000000029ea40>] irq_set_irq_wake+0xe0/0x128
[9.448813] [<9000000000a96a7c>] stmmac_set_wol+0x134/0x150
[9.448819] [<9000000000be6ed0>] dev_ethtool+0x1368/0x2440
[9.448824] [<9000000000c08350>] dev_ioctl+0x1f8/0x3e0
[9.448827] [<9000000000bb2a34>] sock_ioctl+0x2a4/0x450
[9.448832] [<900000000046f044>] do_vfs_ioctl+0xa4/0x738
[9.448834] [<900000000046f778>] ksys_ioctl+0xa0/0xe8
[9.448837] [<900000000046f7d8>] sys_ioctl+0x18/0x28
[9.448840] [<9000000000211ab4>] syscall_common+0x20/0x34
[9.448842] ---[ end trace 40c18d9aec863c3e ]---
Multiple disable_irq_wake() calls will keep decreasing the IRQ
wake_depth, When wake_depth is 0, calling disable_irq_wake() again,
will report the above calltrace.
Due to the need to appear in pairs, we cannot call disable_irq_wake()
without calling enable_irq_wake(). Fix this by making sure there are
no unbalanced disable_irq_wake() calls.
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.