| /kernel/linux/linux-5.10/Documentation/devicetree/bindings/reserved-memory/ |
| D | ramoops.txt | 1 Ramoops oops/panic logger
4 ramoops provides persistent RAM storage for oops and panics, so they can be
5 recovered after a reboot. This is a child-node of "/reserved-memory", and
10 as kernel log messages, or for optional ECC error-correction data. The total
13 Any remaining space will be used for a circular buffer of oops and panic
17 At least one of "record-size", "console-size", "ftrace-size", or "pmsg-size"
18 must be set non-zero, but are otherwise optional as listed below.
23 - compatible: must be "ramoops"
25 - reg: region of memory that is preserved between reboots
30 - ecc-size: enables ECC support and specifies ECC buffer size in bytes
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| /kernel/linux/linux-6.6/Documentation/devicetree/bindings/reserved-memory/ |
| D | ramoops.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/reserved-memory/ramoops.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Ramoops oops/panic logger
10 ramoops provides persistent RAM storage for oops and panics, so they can be
11 recovered after a reboot. This is a child-node of "/reserved-memory", and
16 as kernel log messages, or for optional ECC error-correction data. The total
19 Any remaining space will be used for a circular buffer of oops and panic
23 At least one of "record-size", "console-size", "ftrace-size", or "pmsg-size"
[all …]
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| /kernel/linux/linux-5.10/fs/pstore/ |
| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
116 messages, even if no oops or panic happened.
125 data can be retrieved from /sys/fs/pstore/pmsg-ramoops-[ID].
150 fault log for BlackBox when oops or panic happened.
155 tristate "Log panic/oops to a RAM buffer"
162 This enables panic and oops messages to be logged to a circular
168 For more information, see Documentation/admin-guide/ramoops.rst.
178 tristate "Log panic/oops to a block device"
185 This enables panic and oops message to be logged to a block dev
188 For more information, see Documentation/admin-guide/pstore-blk.rst
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| D | ram.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * RAM Oops/Panic logger
32 "size of each dump done on oops/panic");
57 "start of reserved RAM used to store oops/panic logs");
62 "size of reserved RAM used to store oops/panic logs");
69 static int ramoops_max_reason = -1;
72 "maximum reason for kmsg dump (default 2: Oops and Panic) ");
77 "if non-zero, the option enables ECC support and specifies "
81 static int ramoops_dump_oops = -1;
84 "(deprecated: use max_reason instead) set to 1 to dump oopses & panics, 0 to only dump panics");
[all …]
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| /kernel/linux/linux-6.6/fs/pstore/ |
| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
72 messages, even if no oops or panic happened.
81 data can be retrieved from /sys/fs/pstore/pmsg-ramoops-[ID].
106 fault log for BlackBox when oops or panic happened.
111 tristate "Log panic/oops to a RAM buffer"
118 This enables panic and oops messages to be logged to a circular
124 For more information, see Documentation/admin-guide/ramoops.rst.
134 tristate "Log panic/oops to a block device"
140 This enables panic and oops message to be logged to a block dev
143 For more information, see Documentation/admin-guide/pstore-blk.rst
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| D | ram.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * RAM Oops/Panic logger
34 "size of each dump done on oops/panic");
59 "start of reserved RAM used to store oops/panic logs");
64 "size of reserved RAM used to store oops/panic logs");
69 "memory type: 0=write-combined (default), 1=unbuffered, 2=cached");
71 static int ramoops_max_reason = -1;
74 "maximum reason for kmsg dump (default 2: Oops and Panic) ");
79 "if non-zero, the option enables ECC support and specifies "
83 static int ramoops_dump_oops = -1;
[all …]
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| /kernel/linux/linux-5.10/Documentation/admin-guide/ |
| D | pstore-blk.rst | 1 .. SPDX-License-Identifier: GPL-2.0
3 pstore block oops/panic logger
7 ------------
9 pstore block (pstore/blk) is an oops/panic logger that writes its logs to a
10 block device and non-block device before the system crashes. You can get
13 mount -t pstore pstore /sys/fs/pstore
17 ---------------------
27 Configurations for driver are all about block device and non-block device,
31 -----------------------
50 1. <hex_major><hex_minor> device number in hexadecimal represents itself; no
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| D | bug-hunting.rst | 4 Kernel bug reports often come with a stack dump like the one below::
6 ------------[ cut here ]------------
8 …Modules linked in: dvb_usb_gp8psk(-) dvb_usb dvb_core nvidia_drm(PO) nvidia_modeset(PO) snd_hda_co…
9 CPU: 1 PID: 28102 Comm: rmmod Tainted: P WC O 4.8.4-build.1 #1
10 Hardware name: MSI MS-7309/MS-7309, BIOS V1.12 02/23/2009
38 ---[ end trace 6ebc60ef3981792f ]---
42 the issue, it may also contain the word **Oops**, as on this one::
47 Oops: 0002 [#1] PREEMPT SMP
50 Despite being an **Oops** or some other sort of stack trace, the offended
52 we'll refer to "Oops" for all kinds of stack traces that need to be analyzed.
[all …]
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| /kernel/linux/linux-6.6/Documentation/admin-guide/ |
| D | pstore-blk.rst | 1 .. SPDX-License-Identifier: GPL-2.0
3 pstore block oops/panic logger
7 ------------
9 pstore block (pstore/blk) is an oops/panic logger that writes its logs to a
10 block device and non-block device before the system crashes. You can get
13 mount -t pstore pstore /sys/fs/pstore
17 ---------------------
27 Configurations for driver are all about block device and non-block device,
31 -----------------------
51 #. /dev/<disk_name><decimal> represents the device number of partition - device
[all …]
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| D | bug-hunting.rst | 4 Kernel bug reports often come with a stack dump like the one below::
6 ------------[ cut here ]------------
8 …Modules linked in: dvb_usb_gp8psk(-) dvb_usb dvb_core nvidia_drm(PO) nvidia_modeset(PO) snd_hda_co…
9 CPU: 1 PID: 28102 Comm: rmmod Tainted: P WC O 4.8.4-build.1 #1
10 Hardware name: MSI MS-7309/MS-7309, BIOS V1.12 02/23/2009
38 ---[ end trace 6ebc60ef3981792f ]---
42 the issue, it may also contain the word **Oops**, as on this one::
47 Oops: 0002 [#1] PREEMPT SMP
50 Despite being an **Oops** or some other sort of stack trace, the offended
52 we'll refer to "Oops" for all kinds of stack traces that need to be analyzed.
[all …]
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| /kernel/linux/linux-5.10/kernel/ |
| D | panic.c | 1 // SPDX-License-Identifier: GPL-2.0-only
9 * This function is used through-out the kernel (including mm and fs)
42 * Should we dump all CPUs backtraces in an oops event?
137 * Stop ourself in panic -- architecture code may override this
157 * crash dump, it should save registers of each stopped CPU and disable
158 * per-CPU features such as virtualization extensions.
186 * as saving register state for crash dump.
237 * panic - halt the system
273 * It's possible to come here directly from a panic-assertion and in panic()
275 * preempt to be disabled. No point enabling it later though... in panic()
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| /kernel/linux/linux-6.6/kernel/ |
| D | panic.c | 1 // SPDX-License-Identifier: GPL-2.0-only
9 * This function is used through-out the kernel (including mm and fs)
46 * Should we dump all CPUs backtraces in an oops event?
142 * Stop ourself in panic -- architecture code may override this
162 * crash dump, it should save registers of each stopped CPU and disable
163 * per-CPU features such as virtualization extensions.
191 * as saving register state for crash dump.
246 * and then performs the secondary CPUs shutdown - we cannot have
257 * situation. If we want to do crash dump after notifier calls in panic_other_cpus_shutdown()
269 * panic - halt the system
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| /kernel/linux/linux-5.10/drivers/mtd/ |
| D | mtdoops.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * MTD Oops/Panic logger
31 "record size for MTD OOPS pages in bytes (default 4096)");
41 "set to 1 to dump oopses, 0 to only dump panics (default 1)");
44 struct kmsg_dumper dump; member
60 set_bit(page, cxt->oops_page_used); in mark_page_used()
65 clear_bit(page, cxt->oops_page_used); in mark_page_unused()
70 return test_bit(page, cxt->oops_page_used); in page_is_used()
75 struct mtd_info *mtd = cxt->mtd; in mtdoops_erase_block()
76 u32 start_page_offset = mtd_div_by_eb(offset, mtd) * mtd->erasesize; in mtdoops_erase_block()
[all …]
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| /kernel/linux/linux-5.10/arch/arm/kernel/ |
| D | traps.c | 1 // SPDX-License-Identifier: GPL-2.0-only
5 * Copyright (C) 1995-2009 Russell King
89 for (reg = 10, x = 0, p = str; reg >= 0; reg--) { in dump_backtrace_stm()
91 p += sprintf(p, " r%d:%08x", reg, *stack--); in dump_backtrace_stm()
106 * physical memory. If it is not there, then we can't dump
113 return -EFAULT; in verify_stack()
120 * Dump out the contents of some memory nicely...
131 * to safely read from kernel space. Note that we now dump the in dump_mem()
144 str[sizeof(str) - 1] = '\0'; in dump_mem()
170 * Note that we now dump the code first, just in case the backtrace in __dump_instr()
[all …]
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| /kernel/linux/linux-6.6/drivers/mtd/ |
| D | mtdoops.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * MTD Oops/Panic logger
31 "record size for MTD OOPS pages in bytes (default 4096)");
41 "set to 1 to dump oopses, 0 to only dump panics (default 1)");
53 struct kmsg_dumper dump; member
70 set_bit(page, cxt->oops_page_used); in mark_page_used()
75 clear_bit(page, cxt->oops_page_used); in mark_page_unused()
80 return test_bit(page, cxt->oops_page_used); in page_is_used()
85 struct mtd_info *mtd = cxt->mtd; in mtdoops_erase_block()
86 u32 start_page_offset = mtd_div_by_eb(offset, mtd) * mtd->erasesize; in mtdoops_erase_block()
[all …]
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| /kernel/linux/linux-6.6/tools/testing/selftests/rcutorture/bin/ |
| D | console-badness.sh | 2 # SPDX-License-Identifier: GPL-2.0+
7 # Usage: console-badness.sh
13 …-E 'Badness|WARNING:|Warn|BUG|===========|BUG: KCSAN:|Call Trace:|Oops:|detected stalls on CPUs/ta…
14 grep -v 'ODEBUG: ' |
15 grep -v 'This means that this is a DEBUG kernel and it is' |
16 grep -v 'Warning: unable to open an initial console' |
17 grep -v 'Warning: Failed to add ttynull console. No stdin, stdout, and stderr.*the init process!' |
18 grep -v 'NOHZ tick-stop error: Non-RCU local softirq work is pending, handler'
|
| /kernel/linux/linux-6.6/arch/arm/kernel/ |
| D | traps.c | 1 // SPDX-License-Identifier: GPL-2.0-only
5 * Copyright (C) 1995-2009 Russell King
79 frame = ((unsigned long *)frame)[-2] - 4; in dump_backtrace_entry()
103 for (reg = 10, x = 0, p = str; reg >= 0; reg--) { in dump_backtrace_stm()
105 p += sprintf(p, " r%d:%08x", reg, *stack--); in dump_backtrace_stm()
120 * physical memory. If it is not there, then we can't dump
128 return -EFAULT; in verify_stack()
135 * Dump out the contents of some memory nicely...
150 str[sizeof(str) - 1] = '\0'; in dump_mem()
174 * Note that we now dump the code first, just in case the backtrace in dump_instr()
[all …]
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| /kernel/linux/linux-6.6/sound/soc/sof/amd/ |
| D | acp-common.c | 1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
11 /* ACP-specific Common code */
13 #include "../sof-priv.h"
14 #include "../sof-audio.h"
16 #include "../sof-audio.h"
18 #include "acp-dsp-offset.h"
22 * amd_sof_ipc_dump() - This function is called when IPC tx times out.
27 const struct sof_amd_acp_desc *desc = get_chip_info(sdev->pdata); in amd_sof_ipc_dump()
28 u32 base = desc->dsp_intr_base; in amd_sof_ipc_dump()
29 u32 dsp_msg_write = sdev->debug_box.offset + in amd_sof_ipc_dump()
[all …]
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| /kernel/linux/linux-5.10/Documentation/admin-guide/sysctl/ |
| D | kernel.rst | 5 .. See scripts/check-sysctl-docs to keep this up to date
14 ------------------------------------------------------------------------------
38 If BSD-style process accounting is enabled these values control
71 This variable has no effect and may be removed in future kernel
123 Ctrl-Alt-Delete). Writing a value to this file which doesn't
124 correspond to a running process will result in ``-ESRCH``.
126 See also `ctrl-alt-del`_.
162 %d dump mode, matches ``PR_SET_DUMPABLE`` and
165 %t UNIX time of dump
175 the rest of the pattern as a command to run. The core dump will be
[all …]
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| /kernel/linux/linux-6.6/Documentation/admin-guide/sysctl/ |
| D | kernel.rst | 5 .. See scripts/check-sysctl-docs to keep this up to date
13 Documentation/admin-guide/sysctl/index.rst.
15 ------------------------------------------------------------------------------
39 If BSD-style process accounting is enabled these values control
71 The machine hardware name, the same output as ``uname -m``
77 This variable has no effect and may be removed in future kernel
129 Ctrl-Alt-Delete). Writing a value to this file which doesn't
130 correspond to a running process will result in ``-ESRCH``.
132 See also `ctrl-alt-del`_.
170 %d dump mode, matches ``PR_SET_DUMPABLE`` and
[all …]
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| /kernel/linux/linux-6.6/include/linux/ |
| D | pstore.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Persistent Storage - pstore.h
35 /* PPC64-specific partition types */
53 * struct pstore_record - details of a pstore record entry
56 * @id: per-type unique identifier for record
63 * kfree()d by the pstore core if non-NULL
68 * @count: Oops count since boot
91 * struct pstore_info - backend pstore driver structure
97 * @buf: preallocated crash dump buffer
98 * @bufsize: size of @buf available for crash dump bytes (must match
[all …]
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| /kernel/linux/linux-5.10/include/linux/ |
| D | pstore.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Persistent Storage - pstore.h
35 /* PPC64-specific partition types */
53 * struct pstore_record - details of a pstore record entry
56 * @id: per-type unique identifier for record
65 * @count: Oops count since boot
87 * struct pstore_info - backend pstore driver structure
93 * @buf: preallocated crash dump buffer
94 * @bufsize: size of @buf available for crash dump bytes (must match
107 * @data: backend-private pointer passed back during callbacks
[all …]
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| /kernel/linux/linux-5.10/tools/testing/selftests/lkdtm/ |
| D | run.sh | 2 # SPDX-License-Identifier: GPL-2.0
9 set -e
10 TRIGGER=/sys/kernel/debug/provoke-crash/DIRECT
15 if [ ! -r $TRIGGER ] ; then
16 /sbin/modprobe -q lkdtm || true
17 if [ ! -r $TRIGGER ] ; then
29 line=$(grep -E '^#?'"$test"'\b' tests.txt)
30 if [ -z "$line" ]; then
35 if ! grep -E -q '^'"$test"'$' "$TRIGGER" ; then
41 test=$(echo "$line" | cut -d" " -f1)
[all …]
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| /kernel/linux/linux-6.6/tools/testing/selftests/lkdtm/ |
| D | run.sh | 2 # SPDX-License-Identifier: GPL-2.0
9 set -e
10 TRIGGER=/sys/kernel/debug/provoke-crash/DIRECT
15 if [ ! -r $TRIGGER ] ; then
16 /sbin/modprobe -q lkdtm || true
17 if [ ! -r $TRIGGER ] ; then
29 line=$(grep -E '^#?'"$test"'\b' tests.txt)
30 if [ -z "$line" ]; then
35 if ! grep -E -q '^'"$test"'$' "$TRIGGER" ; then
41 test=$(echo "$line" | cut -d" " -f1)
[all …]
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| /kernel/linux/linux-6.6/arch/powerpc/kernel/ |
| D | nvram_64.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
51 .name = "ibm,rtas-log",
54 .index = -1,
60 .name = "lnx,oops-log",
63 .index = -1,
69 "ibm,rtas-log",
71 "lnx,oops-log",
79 .dump = oops_to_nvram
83 * For capturing and compressing an oops or panic report...
87 * oops_buf[] holds the compressed text, preceded by a oops header.
[all …]
|