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Paolo 'Blaisorblade' Giarrusso 5d48545e5e [PATCH] uml: make execvp safe for our usage ... Reimplement execvp for our purposes - after we call fork() it is fundamentally unsafe to use the kernel allocator - current is not valid there. So we simply pass to our modified execvp() a preallocated buffer. This fixes a real bug and works very well in testing (I've seen indirectly warning messages from the forked thread - they went on the pipe connected to its stdout and where read as a number by UML, when calling read_output(). I verified the obtained number corresponded to "BUG:"). The added use of __cant_sleep() is not a new bug since __cant_sleep() is already used in the same function - passing an atomicity parameter would be better but it would require huge change, stating that this function must not be called in atomic context and can sleep is a better idea (will make sure of this gradually). Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Acked-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		18 years ago
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drivers	[PATCH] uml: split memory allocation prototypes out of user.h	19 years ago
include	…
skas	[PATCH] uml: include tidying	19 years ago
sys-i386	[PATCH] Fix "Remove the use of _syscallX macros in UML"	19 years ago
sys-x86_64	[PATCH] uml: stack usage reduction	19 years ago
Makefile	[PATCH] uml: make execvp safe for our usage	18 years ago
aio.c	…
elf_aux.c	…
execvp.c	[PATCH] uml: make execvp safe for our usage	18 years ago
file.c	…
helper.c	[PATCH] uml: make execvp safe for our usage	18 years ago
irq.c	[PATCH] uml: split memory allocation prototypes out of user.h	19 years ago
main.c	[PATCH] uml: split memory allocation prototypes out of user.h	19 years ago
mem.c	[PATCH] uml: close file descriptor leaks	19 years ago
process.c	[PATCH] uml: include tidying	19 years ago
sigio.c	[PATCH] uml: split memory allocation prototypes out of user.h	19 years ago
signal.c	[PATCH] uml: fix I/O hang	19 years ago
start_up.c	[PATCH] uml: stack usage reduction	19 years ago
time.c	[PATCH] uml: reenable compilation of enable_timer, disabled by mistake	19 years ago
tls.c	[PATCH] uml: include tidying	19 years ago
trap.c	[PATCH] uml: Use klibc setjmp/longjmp	19 years ago
tt.c	[PATCH] uml: make TT mode compile after setjmp-related changes	19 years ago
tty.c	…
tty_log.c	…
uaccess.c	[PATCH] uml: Use klibc setjmp/longjmp	19 years ago
umid.c	…
user_syms.c	…
util.c	[PATCH] uml: fix uname under setarch i386	19 years ago