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| -rw-r--r-- | Documentation/kdump/kdump.txt | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/Documentation/kdump/kdump.txt b/Documentation/kdump/kdump.txt index 68aa1650973..a9a411d8b97 100644 --- a/Documentation/kdump/kdump.txt +++ b/Documentation/kdump/kdump.txt @@ -301,11 +301,13 @@ For ppc64: Notes on loading the dump-capture kernel: * By default, the ELF headers are stored in ELF64 format to support - systems with more than 4GB memory. The --elf32-core-headers option can - be used to force the generation of ELF32 headers. This is necessary - because GDB currently cannot open vmcore files with ELF64 headers on - 32-bit systems. ELF32 headers can be used on non-PAE systems (that is, - less than 4GB of memory). + systems with more than 4GB memory. On i386, kexec automatically checks if + the physical RAM size exceeds the 4 GB limit and if not, uses ELF32. + So, on non-PAE systems, ELF32 is always used. + + The --elf32-core-headers option can be used to force the generation of ELF32 + headers. This is necessary because GDB currently cannot open vmcore files + with ELF64 headers on 32-bit systems. * The "irqpoll" boot parameter reduces driver initialization failures due to shared interrupts in the dump-capture kernel. |