How to enable kernel pstore?
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I'm trying to enable the kernel persistent storage (pstore) in order to help debug a module which malfunctions and freezes my laptop on suspend, but I'm having difficulties doing so.
My kernel (4.1.20) config with related parameters is
# gunzip -c /proc/config.gz | grep PSTORE
CONFIG_CHROMEOS_PSTORE=m
CONFIG_PSTORE=y
CONFIG_PSTORE_CONSOLE=y
# CONFIG_PSTORE_PMSG is not set
# CONFIG_PSTORE_FTRACE is not set
CONFIG_PSTORE_RAM=m
I have also tried loading the ramoops module, but when I do
# cat /sys/module/pstore/parameters/backend
(null)
it doesn't seem to have enabled anything. /sys/fs/pstore is empty as well, altough mount says that it is mounted. I have tried to panic my kernel using this but nothing showed up.
What am I doing wrong? Is it even supposed to work on a normal laptop, or am I completely in the dark? I could not find very much while looking for this feature.
kernel-modules debugging
asked Mar 31 '16 at 9:29
D.S
39127
bumped to the homepage by Community♦ 19 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
add a comment |Â
up vote
4
down vote
favorite
I'm trying to enable the kernel persistent storage (pstore) in order to help debug a module which malfunctions and freezes my laptop on suspend, but I'm having difficulties doing so.
My kernel (4.1.20) config with related parameters is
# gunzip -c /proc/config.gz | grep PSTORE
CONFIG_CHROMEOS_PSTORE=m
CONFIG_PSTORE=y
CONFIG_PSTORE_CONSOLE=y
# CONFIG_PSTORE_PMSG is not set
# CONFIG_PSTORE_FTRACE is not set
CONFIG_PSTORE_RAM=m
I have also tried loading the ramoops module, but when I do
# cat /sys/module/pstore/parameters/backend
(null)
it doesn't seem to have enabled anything. /sys/fs/pstore is empty as well, altough mount says that it is mounted. I have tried to panic my kernel using this but nothing showed up.
What am I doing wrong? Is it even supposed to work on a normal laptop, or am I completely in the dark? I could not find very much while looking for this feature.
kernel-modules debugging
asked Mar 31 '16 at 9:29
D.S
39127
bumped to the homepage by Community♦ 19 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
add a comment |Â
up vote
4
down vote
favorite
up vote
4
down vote
favorite
I'm trying to enable the kernel persistent storage (pstore) in order to help debug a module which malfunctions and freezes my laptop on suspend, but I'm having difficulties doing so.
My kernel (4.1.20) config with related parameters is
# gunzip -c /proc/config.gz | grep PSTORE
CONFIG_CHROMEOS_PSTORE=m
CONFIG_PSTORE=y
CONFIG_PSTORE_CONSOLE=y
# CONFIG_PSTORE_PMSG is not set
# CONFIG_PSTORE_FTRACE is not set
CONFIG_PSTORE_RAM=m
I have also tried loading the ramoops module, but when I do
# cat /sys/module/pstore/parameters/backend
(null)
it doesn't seem to have enabled anything. /sys/fs/pstore is empty as well, altough mount says that it is mounted. I have tried to panic my kernel using this but nothing showed up.
What am I doing wrong? Is it even supposed to work on a normal laptop, or am I completely in the dark? I could not find very much while looking for this feature.
kernel-modules debugging
asked Mar 31 '16 at 9:29
D.S
39127
I'm trying to enable the kernel persistent storage (pstore) in order to help debug a module which malfunctions and freezes my laptop on suspend, but I'm having difficulties doing so.
My kernel (4.1.20) config with related parameters is
# gunzip -c /proc/config.gz | grep PSTORE
CONFIG_CHROMEOS_PSTORE=m
CONFIG_PSTORE=y
CONFIG_PSTORE_CONSOLE=y
# CONFIG_PSTORE_PMSG is not set
# CONFIG_PSTORE_FTRACE is not set
CONFIG_PSTORE_RAM=m
I have also tried loading the ramoops module, but when I do
# cat /sys/module/pstore/parameters/backend
(null)
it doesn't seem to have enabled anything. /sys/fs/pstore is empty as well, altough mount says that it is mounted. I have tried to panic my kernel using this but nothing showed up.
What am I doing wrong? Is it even supposed to work on a normal laptop, or am I completely in the dark? I could not find very much while looking for this feature.
kernel-modules debugging
kernel-modules debugging
asked Mar 31 '16 at 9:29
D.S
39127
asked Mar 31 '16 at 9:29
D.S
39127
asked Mar 31 '16 at 9:29
D.S
39127
asked Mar 31 '16 at 9:29
D.S
39127
asked Mar 31 '16 at 9:29
D.S
39127
39127
bumped to the homepage by Community♦ 19 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
bumped to the homepage by Community♦ 19 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
add a comment |Â
add a comment |Â
1 Answer
1
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up vote
0
down vote
You need to determine a piece of memory that survives a reboot. Then it's probably the easiest approach to pass that via kernel parameters, see
the ramoops Documentation in the kernel tree.
answered Aug 8 at 19:11
Uwe Kleine-König
101
add a comment |Â
1 Answer
1
active
oldest
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1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
0
down vote
You need to determine a piece of memory that survives a reboot. Then it's probably the easiest approach to pass that via kernel parameters, see
the ramoops Documentation in the kernel tree.
answered Aug 8 at 19:11
Uwe Kleine-König
101
add a comment |Â
up vote
0
down vote
You need to determine a piece of memory that survives a reboot. Then it's probably the easiest approach to pass that via kernel parameters, see
the ramoops Documentation in the kernel tree.
answered Aug 8 at 19:11
Uwe Kleine-König
101
add a comment |Â
up vote
0
down vote
up vote
0
down vote
You need to determine a piece of memory that survives a reboot. Then it's probably the easiest approach to pass that via kernel parameters, see
the ramoops Documentation in the kernel tree.
answered Aug 8 at 19:11
Uwe Kleine-König
101
You need to determine a piece of memory that survives a reboot. Then it's probably the easiest approach to pass that via kernel parameters, see
the ramoops Documentation in the kernel tree.
answered Aug 8 at 19:11
Uwe Kleine-König
101
answered Aug 8 at 19:11
Uwe Kleine-König
101
answered Aug 8 at 19:11
Uwe Kleine-König
101
answered Aug 8 at 19:11
Uwe Kleine-König
101
101
add a comment |Â
add a comment |Â
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