]> git.proxmox.com Git - mirror_ubuntu-disco-kernel.git/commit
um: fix call tracer and bug handler
authorRichard Weinberger <richard@nod.at>
Thu, 14 Apr 2011 22:22:17 +0000 (15:22 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Thu, 14 Apr 2011 23:06:56 +0000 (16:06 -0700)
commit6d56dad3ae070511e59792a62f27b2394cc936bc
tree53b4ae9bea67ae24983858eeb4e9c6dfd7fd7d60
parented5afeaf422202485bbebc7e911f13b2a6be2666
um: fix call tracer and bug handler

Commit 1de1502c ("x86, um: now we can get rid of trivial uml headers")
removed accidentally bug.h which broke UML's call tracer and bug
handler.

Without asm-generic/bug.h UML uses BUG() from arch/x86/ which makes use
of ud2.  UML cannot use ud2, it raises SIGILL in user mode.  As UML has
a different stack for handling signals the call trace will be cut off.

Signed-off-by: Richard Weinberger <richard@nod.at>
Reported-by: Sergei Trofimovich <slyich@gmail.com>
Tested-by: Sergei Trofimovich <slyich@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
arch/um/include/asm/bug.h [new file with mode: 0644]