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/linux-6.15/io_uring/
Dnet.c142 static void io_netmsg_iovec_free(struct io_async_msghdr *kmsg) in io_netmsg_iovec_free() argument
144 if (kmsg->vec.iovec) in io_netmsg_iovec_free()
145 io_vec_free(&kmsg->vec); in io_netmsg_iovec_free()
185 struct io_async_msghdr *kmsg) in io_mshot_prep_retry() argument
337 struct io_async_msghdr *kmsg = req->async_data; in io_send_setup() local
347 kmsg->msg.msg_name = NULL; in io_send_setup()
348 kmsg->msg.msg_namelen = 0; in io_send_setup()
349 kmsg->msg.msg_control = NULL; in io_send_setup()
350 kmsg->msg.msg_controllen = 0; in io_send_setup()
351 kmsg->msg.msg_ubuf = NULL; in io_send_setup()
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/linux-6.15/net/
Dcompat.c36 int __get_compat_msghdr(struct msghdr *kmsg, in __get_compat_msghdr() argument
42 kmsg->msg_flags = msg->msg_flags; in __get_compat_msghdr()
43 kmsg->msg_namelen = msg->msg_namelen; in __get_compat_msghdr()
46 kmsg->msg_namelen = 0; in __get_compat_msghdr()
48 if (kmsg->msg_namelen < 0) in __get_compat_msghdr()
51 if (kmsg->msg_namelen > sizeof(struct sockaddr_storage)) in __get_compat_msghdr()
52 kmsg->msg_namelen = sizeof(struct sockaddr_storage); in __get_compat_msghdr()
54 kmsg->msg_control_is_user = true; in __get_compat_msghdr()
55 kmsg->msg_get_inq = 0; in __get_compat_msghdr()
56 kmsg->msg_control_user = compat_ptr(msg->msg_control); in __get_compat_msghdr()
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Dsocket.c2442 int __copy_msghdr(struct msghdr *kmsg, in __copy_msghdr() argument
2448 kmsg->msg_control_is_user = true; in __copy_msghdr()
2449 kmsg->msg_get_inq = 0; in __copy_msghdr()
2450 kmsg->msg_control_user = msg->msg_control; in __copy_msghdr()
2451 kmsg->msg_controllen = msg->msg_controllen; in __copy_msghdr()
2452 kmsg->msg_flags = msg->msg_flags; in __copy_msghdr()
2454 kmsg->msg_namelen = msg->msg_namelen; in __copy_msghdr()
2456 kmsg->msg_namelen = 0; in __copy_msghdr()
2458 if (kmsg->msg_namelen < 0) in __copy_msghdr()
2461 if (kmsg->msg_namelen > sizeof(struct sockaddr_storage)) in __copy_msghdr()
[all …]
/linux-6.15/tools/testing/selftests/livepatch/
Dtest-livepatch.sh60 grep 'live patched' /proc/cmdline > /dev/kmsg
61 grep 'live patched' /proc/meminfo > /dev/kmsg
65 grep 'live patched' /proc/cmdline > /dev/kmsg
66 grep 'live patched' /proc/meminfo > /dev/kmsg
71 grep 'live patched' /proc/cmdline > /dev/kmsg
72 grep 'live patched' /proc/meminfo > /dev/kmsg
77 grep 'live patched' /proc/cmdline > /dev/kmsg
78 grep 'live patched' /proc/meminfo > /dev/kmsg
124 grep 'live patched' /proc/cmdline > /dev/kmsg
125 grep 'live patched' /proc/meminfo > /dev/kmsg
[all …]
Dfunctions.sh21 echo "$1" > /dev/kmsg
113 echo "livepatch: $err" | sed 's#/proc/sys/kernel/#kernel.#' > /dev/kmsg
120 echo "livepatch: kernel.ftrace_enabled = $result" > /dev/kmsg
/linux-6.15/drivers/gpu/drm/
Ddrm_panic.c43 "Choose what will be displayed by drm_panic, 'user' or 'kmsg' [default="
350 * Draw one line of kmsg, and handle wrapping if it won't fit in the screen width.
383 * Draw the kmsg buffer to the screen, starting from the youngest message at the bottom,
435 * 1) kmsg messages are dumped in buffer1
436 * 2) kmsg is zlib-compressed into buffer2
437 * 3) compressed kmsg is encoded as QR-code Numeric stream in buffer1
442 * Typically, ~7500 bytes of kmsg, are compressed into 2800 bytes, which fits in
445 * If CONFIG_DRM_PANIC_SCREEN_QR_CODE_URL is not set, the kmsg data will be put
447 * 1) kmsg messages are dumped in buffer1
448 * 2) kmsg message is encoded as byte stream in buffer2
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DKconfig149 the user to reboot the system, or "kmsg" which will display the last
150 lines of kmsg.
161 code. The QR code will contain the last lines of kmsg and other debug
171 the QR code will contain the URL and the kmsg compressed with zlib as
172 a URL parameter. If it's empty, the QR code will contain the kmsg as
174 There is a demo code in javascript, to decode and uncompress the kmsg
/linux-6.15/Documentation/ABI/testing/
Ddev-kmsg1 What: /dev/kmsg
5 Description: The /dev/kmsg character device node provides userspace access
116 the console, /proc/kmsg or the syslog() syscall.
121 disabled and /dev/kmsg output will contain more fragments. If
124 may be removed entirely and /dev/kmsg users are recommended to
/linux-6.15/Documentation/devicetree/bindings/reserved-memory/
Dramoops.yaml46 description: maximum size in bytes of each kmsg dump
81 If present, sets maximum type of kmsg dump reasons to store.
82 This can be set to INT_MAX to store all kmsg dumps.
83 See include/linux/kmsg_dump.h KMSG_DUMP_* for other kmsg dump reason values.
/linux-6.15/tools/testing/selftests/devices/error_logs/
Dtest_device_error_logs.py25 kmsg = "/dev/kmsg" variable
41 with open(kmsg) as f:
/linux-6.15/fs/pstore/
DKconfig135 int "Size in Kbytes of kmsg dump log to store"
139 This just sets size of kmsg dump (oops, panic, etc) log for
146 int "Maximum kmsg dump reason to store"
150 The maximum reason for kmsg dumps to store. The default is
Dzone.c42 * struct psz_kmsg_header - kmsg dump-specific header to flush to storage
44 * @magic: magic num for kmsg dump header
45 * @time: kmsg dump trigger time
47 * @counter: kmsg dump counter
48 * @reason: the kmsg dump reason (e.g. oops, panic, etc)
51 * This is a sub-header for a kmsg dump, trailing after &psz_buffer.
92 * @kpszs: kmsg dump storage zones
97 * @kmsg_read_cnt: counter of total read kmsg dumps
98 * @kmsg_write_cnt: counter of total kmsg dump writes
407 pr_debug("no valid data in kmsg dump zone %lu\n", i); in psz_kmsg_recover_meta()
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/linux-6.15/include/linux/
Dpstore_blk.h31 * @max_reason: Maximum kmsg dump reason to store to block device
32 * @kmsg_size: Total size of for kmsg dumps
/linux-6.15/tools/testing/selftests/drivers/net/
Dnetcons_fragmented_msg.sh24 # The content of kmsg will be save to the following file
105 echo "${MSG}: ${TARGET}" > /dev/kmsg
119 echo "${MSG}: ${TARGET}" > /dev/kmsg
Dnetcons_basic.sh26 # The content of kmsg will be save to the following file
46 echo "${MSG}: ${TARGET}" > /dev/kmsg
/linux-6.15/fs/proc/
Dkmsg.c3 * linux/fs/proc/kmsg.c
60 proc_create("kmsg", S_IRUSR, NULL, &kmsg_proc_ops); in proc_kmsg_init()
DMakefile34 proc-$(CONFIG_PRINTK) += kmsg.o
/linux-6.15/Documentation/networking/
Dnetconsole.rst202 echo "This is a message" > /dev/kmsg
226 echo "This is a message" > /dev/kmsg
268 echo "This is a message" > /dev/kmsg
289 echo "This is a message" > /dev/kmsg
320 echo "This is a message" > /dev/kmsg
353 following format which is the same as /dev/kmsg::
/linux-6.15/drivers/hv/
Dhv_common.c157 * sysctl option to allow the user to control whether kmsg data should be
186 * kmsg dumper is used [see hv_kmsg_dump()], which provides more
212 * be calling hv_kmsg_dump() later with kmsg data, don't do the in hv_die_panic_notify_crash()
222 * Callback from kmsg_dump. Grab as much as possible from the end of the kmsg
291 pr_err("Hyper-V: kmsg dump register error 0x%x\n", ret); in hv_kmsg_dump_register()
337 * Hyper-V expects to get crash register data or kmsg when in hv_common_init()
361 * Register for panic kmsg callback only if the right in hv_common_init()
/linux-6.15/tools/testing/selftests/
Drun_kselftest.sh103 [ -w /dev/kmsg ] && echo "kselftest: Running tests in $collection" >> /dev/kmsg
/linux-6.15/net/batman-adv/
Dlog.h116 * batadv_info() - Store message in debug buffer and print it to kmsg buffer
130 * batadv_err() - Store error in debug buffer and print it to kmsg buffer
/linux-6.15/tools/testing/selftests/wireguard/qemu/
Dinit.c134 file = fopen("/proc/kmsg", "r"); in kmod_selftests()
136 panic("fopen(kmsg)"); in kmod_selftests()
138 panic("fcntl(kmsg, nonblock)"); in kmod_selftests()
/linux-6.15/arch/powerpc/platforms/powernv/
Dopal-kmsg.c3 * kmsg dumper that ensures the OPAL console fully flushes panic messages
/linux-6.15/arch/um/kernel/
Dkmsg_dump.c23 * the kmsg buffer to stdout. in kmsg_dumper_stdout()
/linux-6.15/include/net/
Dcompat.h49 int __get_compat_msghdr(struct msghdr *kmsg, struct compat_msghdr *msg,

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