On 30.08.24 13:41, Lorenzo Stoakes wrote:
On Fri, Aug 30, 2024 at 11:56:36AM GMT, Petr Spacek wrote:
From: Petr Spacek <pspacek@xxxxxxx>
Raise default sysctl vm.max_map_count to INT_MAX, which effectively
disables the limit for all sane purposes. The sysctl is kept around in
case there is some use-case for this limit.
The old default value of vm.max_map_count=65530 provided compatibility
with ELF format predating year 2000 and with binutils predating 2010. At
the same time the old default caused issues with applications deployed
in 2024.
State since 2012: Linux 3.2.0 correctly generates coredump from a
process with 100 000 mmapped files. GDB 7.4.1, binutils 2.22 work with
this coredump fine and can actually read data from the mmaped addresses.
Signed-off-by: Petr Spacek <pspacek@xxxxxxx>
NACK.
Ageed, I could have sworn I NACKed a similar patch just months ago.
If you use that many memory mappings, you re doing something very, very
wrong.
--
Cheers,
David / dhildenb
