kernel-hacking-2024-linux-s.../arch/x86
Sasha Levin 309381feae mm: dump page when hitting a VM_BUG_ON using VM_BUG_ON_PAGE
Most of the VM_BUG_ON assertions are performed on a page.  Usually, when
one of these assertions fails we'll get a BUG_ON with a call stack and
the registers.

I've recently noticed based on the requests to add a small piece of code
that dumps the page to various VM_BUG_ON sites that the page dump is
quite useful to people debugging issues in mm.

This patch adds a VM_BUG_ON_PAGE(cond, page) which beyond doing what
VM_BUG_ON() does, also dumps the page before executing the actual
BUG_ON.

[akpm@linux-foundation.org: fix up includes]
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-01-23 16:36:50 -08:00
..
boot Merge branch 'x86-kaslr-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-01-20 14:45:50 -08:00
configs
crypto
ia32
include Features: 2014-01-22 22:00:18 -08:00
kernel PCI changes for the v3.14 merge window: 2014-01-22 16:39:28 -08:00
kvm First round of KVM updates for 3.14; PPC parts will come next week. 2014-01-22 21:40:43 -08:00
lguest
lib Merge branch 'x86/mpx' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-01-20 14:46:32 -08:00
math-emu
mm mm: dump page when hitting a VM_BUG_ON using VM_BUG_ON_PAGE 2014-01-23 16:36:50 -08:00
net bpf: do not use reciprocal divide 2014-01-15 17:02:08 -08:00
oprofile
pci PCI changes for the v3.14 merge window: 2014-01-22 16:39:28 -08:00
platform Merge branch 'x86-intel-mid-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-01-20 12:06:50 -08:00
power
realmode Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-01-20 12:03:57 -08:00
syscalls sched: Add new scheduler syscalls to support an extended scheduling parameters ABI 2014-01-13 13:41:04 +01:00
tools
um um, x86: Fix vDSO build 2014-01-12 16:47:31 +01:00
vdso Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-01-20 12:03:57 -08:00
video
xen xen/pvh: Set X86_CR0_WP and others in CR0 (v2) 2014-01-21 13:26:05 -05:00
.gitignore
Kbuild
Kconfig Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2014-01-22 21:21:55 -08:00
Kconfig.cpu
Kconfig.debug
Makefile stackprotector: Unify the HAVE_CC_STACKPROTECTOR logic between architectures 2013-12-20 09:38:40 +01:00
Makefile.um
Makefile_32.cpu