mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-22 17:33:01 +00:00
14251809b1
This fixes a problem seen by a number of people running UML on newer host kernels. init would hang with an infinite segfault loop. It turns out that the host kernel was providing a AT_SYSINFO_EHDR of 0xffffe000, which faked UML into believing that the host VDSO page could be reused. However, AT_SYSINFO pointed into the middle of the address space, and was unmapped as a result. Because UML was providing AT_SYSINFO_EHDR and AT_SYSINFO to its own processes, these would branch to nowhere when trying to use the VDSO. The fix is to also check the location of AT_SYSINFO when deciding whether to use the host's VDSO. Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
---|---|---|
.. | ||
drivers | ||
include | ||
kernel | ||
os-Linux | ||
scripts | ||
sys-i386 | ||
sys-ia64 | ||
sys-ppc | ||
sys-x86_64 | ||
config.release | ||
defconfig | ||
Kconfig | ||
Kconfig.char | ||
Kconfig.debug | ||
Kconfig.i386 | ||
Kconfig.net | ||
Kconfig.scsi | ||
Kconfig.x86_64 | ||
Makefile | ||
Makefile-i386 | ||
Makefile-ia64 | ||
Makefile-os-Linux | ||
Makefile-ppc | ||
Makefile-skas | ||
Makefile-tt | ||
Makefile-x86_64 |