diff options
Diffstat (limited to 'Documentation/admin-guide/kdump')
-rw-r--r-- | Documentation/admin-guide/kdump/kdump.rst | 10 | ||||
-rw-r--r-- | Documentation/admin-guide/kdump/vmcoreinfo.rst | 8 |
2 files changed, 15 insertions, 3 deletions
diff --git a/Documentation/admin-guide/kdump/kdump.rst b/Documentation/admin-guide/kdump/kdump.rst index cb30ca3df27c..a748e7eb4429 100644 --- a/Documentation/admin-guide/kdump/kdump.rst +++ b/Documentation/admin-guide/kdump/kdump.rst @@ -146,9 +146,9 @@ System kernel config options CONFIG_SYSFS=y Note that "sysfs file system support" might not appear in the "Pseudo - filesystems" menu if "Configure standard kernel features (for small - systems)" is not enabled in "General Setup." In this case, check the - .config file itself to ensure that sysfs is turned on, as follows:: + filesystems" menu if "Configure standard kernel features (expert users)" + is not enabled in "General Setup." In this case, check the .config file + itself to ensure that sysfs is turned on, as follows:: grep 'CONFIG_SYSFS' .config @@ -533,6 +533,10 @@ the following command:: cp /proc/vmcore <dump-file> +or use scp to write out the dump file between hosts on a network, e.g:: + + scp /proc/vmcore remote_username@remote_ip:<dump-file> + You can also use makedumpfile utility to write out the dump file with specified options to filter out unwanted contents, e.g:: diff --git a/Documentation/admin-guide/kdump/vmcoreinfo.rst b/Documentation/admin-guide/kdump/vmcoreinfo.rst index 3861a25faae1..8419019b6a88 100644 --- a/Documentation/admin-guide/kdump/vmcoreinfo.rst +++ b/Documentation/admin-guide/kdump/vmcoreinfo.rst @@ -494,6 +494,14 @@ architecture which is used to lookup the page-tables for the Virtual addresses in the higher VA range (refer to ARMv8 ARM document for more details). +MODULES_VADDR|MODULES_END|VMALLOC_START|VMALLOC_END|VMEMMAP_START|VMEMMAP_END +----------------------------------------------------------------------------- + +Used to get the correct ranges: + MODULES_VADDR ~ MODULES_END-1 : Kernel module space. + VMALLOC_START ~ VMALLOC_END-1 : vmalloc() / ioremap() space. + VMEMMAP_START ~ VMEMMAP_END-1 : vmemmap region, used for struct page array. + arm === |