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Commit 6d56dad3 authored by Richard Weinberger's avatar Richard Weinberger Committed by Linus Torvalds
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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: default avatarRichard Weinberger <richard@nod.at>
Reported-by: default avatarSergei Trofimovich <slyich@gmail.com>
Tested-by: default avatarSergei Trofimovich <slyich@gmail.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent ed5afeaf
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