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| author | Hannu Nyman <hannu.nyman@iki.fi> | 2022-02-09 23:54:47 +0200 |
|---|---|---|
| committer | Christian Lamparter <chunkeey@gmail.com> | 2022-02-24 20:45:12 +0100 |
| commit | 97158fe10e6090a8b21629df130734bac53f87ee (patch) | |
| tree | 5eb053bb9d381a65141acf24232a920235db1755 /target | |
| parent | 1050e66c8f7c67ab8b3d1895e2559f03baeb2345 (diff) | |
| download | upstream-97158fe10e6090a8b21629df130734bac53f87ee.tar.gz upstream-97158fe10e6090a8b21629df130734bac53f87ee.tar.bz2 upstream-97158fe10e6090a8b21629df130734bac53f87ee.zip | |
kernel: package ramoops pstore-ram crash log storage
Package the ability to log kernel crashes to 'ramoops' pstore
files into RAM in /sys/fs/pstore
Reference to the ramoops admin guide in upstream Linux:
https://www.kernel.org/doc/html/v5.10/admin-guide/ramoops.html
The files in RAM survive a warm reboot, but not a cold reboot.
Note: kmod-ramoops selects kmod-pstore and kmod-reed-solomon.
The feature can be used by selecting the kmod-ramoops and
adding a ramoops reserved-memory definition to the device DTS.
Example from R7800:
reserved-memory {
rsvd@5fe00000 {
reg = <0x5fe00000 0x200000>;
reusable;
};
ramoops@42100000 {
compatible = "ramoops";
reg = <0x42100000 0x40000>;
record-size = <0x4000>;
console-size = <0x4000>;
ftrace-size = <0x4000>;
pmsg-size = <0x4000>;
};
};
If no definition has been made in DTS, no crash log is stored
for the device.
Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
(added CONFIG_EFI_VARS_PSTORE disable)
Diffstat (limited to 'target')
| -rw-r--r-- | target/linux/generic/config-5.10 | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/target/linux/generic/config-5.10 b/target/linux/generic/config-5.10 index f209086fc2..56eb052981 100644 --- a/target/linux/generic/config-5.10 +++ b/target/linux/generic/config-5.10 @@ -1760,6 +1760,7 @@ CONFIG_DYNAMIC_DEBUG_CORE=y # CONFIG_EEPROM_MAX6875 is not set # CONFIG_EFI is not set CONFIG_EFI_PARTITION=y +# CONFIG_EFI_VARS_PSTORE is not set # CONFIG_EFS_FS is not set CONFIG_ELFCORE=y # CONFIG_ELF_CORE is not set @@ -4589,6 +4590,18 @@ CONFIG_PROC_SYSCTL=y # CONFIG_PSB6970_PHY is not set # CONFIG_PSI is not set # CONFIG_PSTORE is not set +# CONFIG_PSTORE_COMPRESS is not set +# CONFIG_PSTORE_COMPRESS_DEFAULT="deflate" +# CONFIG_PSTORE_CONSOLE is not set +# CONFIG_PSTORE_DEFLATE_COMPRESS is not set +# CONFIG_PSTORE_DEFLATE_COMPRESS_DEFAULT is not set +# CONFIG_PSTORE_842_COMPRESS is not set +# CONFIG_PSTORE_LZ4_COMPRESS is not set +# CONFIG_PSTORE_LZ4HC_COMPRESS is not set +# CONFIG_PSTORE_LZO_COMPRESS is not set +# CONFIG_PSTORE_PMSG is not set +# CONFIG_PSTORE_RAM is not set +# CONFIG_PSTORE_ZSTD_COMPRESS is not set # CONFIG_PTDUMP_DEBUGFS is not set # CONFIG_PTP_1588_CLOCK is not set # CONFIG_PTP_1588_CLOCK_IDT82P33 is not set @@ -4698,6 +4711,9 @@ CONFIG_RCU_TORTURE_TEST_SLOW_INIT_DELAY=3 # CONFIG_READ_ONLY_THP_FOR_FS is not set # CONFIG_REALTEK_PHY is not set # CONFIG_REDWOOD is not set +# CONFIG_REED_SOLOMON is not set +# CONFIG_REED_SOLOMON_DEC8 is not set +# CONFIG_REED_SOLOMON_ENC8 is not set # CONFIG_REED_SOLOMON_TEST is not set # CONFIG_REGMAP is not set # CONFIG_REGMAP_I2C is not set |