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A mirror of the official Linux kernel repository just in case
452bca0edb
When wedging a device we shouldn't be suspending device as state for
debug will be lost.
Also this appears to not work as the below stack trace pops upon trying
to resume a wedged device:
[ 304.245044] INFO: task cat:12115 blocked for more than 151 seconds.
[ 304.251333] Tainted: G W 6.10.0-rc7-xe+ #3518
[ 304.257617] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 304.265459] task:cat state:D stack:13384 pid:12115 tgid:12115 ppid:3986 flags:0x00000006
[ 304.265465] Call Trace:
[ 304.265467] <TASK>
[ 304.265469] __schedule+0x3c4/0xdf0
[ 304.265478] schedule+0x3c/0x140
[ 304.265481] rpm_resume+0x1cc/0x740
[ 304.265484] ? __pfx_autoremove_wake_function+0x10/0x10
[ 304.265489] __pm_runtime_resume+0x49/0x80
[ 304.265494] guc_info+0x6b/0xb0 [xe]
[ 304.265538] ? __pfx___drm_printfn_seq_file+0x10/0x10
[ 304.265541] ? __pfx___drm_puts_seq_file+0x10/0x10
[ 304.265545] seq_read_iter+0x111/0x4c0
[ 304.265551] seq_read+0xfc/0x140
[ 304.265556] full_proxy_read+0x58/0x80
[ 304.265560] vfs_read+0xa7/0x360
[ 304.265563] ? find_held_lock+0x2b/0x80
[ 304.265568] ksys_read+0x64/0xe0
[ 304.265571] do_syscall_64+0x68/0x140
[ 304.265575] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 304.265578] RIP: 0033:0x7f4254d14992
[ 304.265580] RSP: 002b:00007ffc558666f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[ 304.265583] RAX: ffffffffffffffda RBX: 0000000000020000 RCX: 00007f4254d14992
[ 304.265584] RDX: 0000000000020000 RSI: 00007f4254ebb000 RDI: 0000000000000003
[ 304.265586] RBP: 00007f4254ebb000 R08: 00007f4254eba010 R09: 00007f4254eba010
[ 304.265587] R10: 0000000000000022 R11: 0000000000000246 R12: 0000000000022000
[ 304.265588] R13: 0000000000000003 R14: 0000000000020000 R15: 0000000000020000
[ 304.265593] </TASK>
[ 304.265594]
Showing all locks held in the system:
[ 304.265598] 1 lock held by khungtaskd/57:
[ 304.265599] #0: ffffffff8273b860 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x36/0x1c0
[ 304.265607] 3 locks held by kworker/6:1/90:
[ 304.265610] 1 lock held by in:imklog/547:
[ 304.265611] #0: ffff88810498cd88 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x76/0xc0
[ 304.265620] 1 lock held by dmesg/1310:
v2: Drop local 'err' variable (Jonathan)
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 | ||
| .editorconfig | ||
| .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 reStructuredText 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.