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Date: Sun, 23 Sep 2007 20:26:53 +0800 From: lepton <ytht.net@...il.com> To: jdike@...aya.com Cc: lkm <linux-kernel@...r.kernel.org> Subject: [PATCH] 2.6.22.6 user-mode linux: fix error in check_sysemu it is a error do count++ here, it will let the following compare (after 8 lines) " if (!count)" always be false. Signed-off-by: Lepton Wu <ytht.net@...il.com> diff -X linux-2.6.22.6/Documentation/dontdiff -pr -U 8 linux-2.6.22.6/arch/um/os-Linux/start_up.c linux-2.6.22.6-uml/arch/um/os-Linux/start_up.c --- linux-2.6.22.6/arch/um/os-Linux/start_up.c 2007-09-14 17:41:10.000000000 +0800 +++ linux-2.6.22.6-uml/arch/um/os-Linux/start_up.c 2007-09-23 20:14:08.000000000 +0800 @@ -250,17 +250,16 @@ static void __init check_sysemu(void) non_fatal("Checking advanced syscall emulation patch for ptrace..."); pid = start_ptraced_child(&stack); if((ptrace(PTRACE_OLDSETOPTIONS, pid, 0, (void *) PTRACE_O_TRACESYSGOOD) < 0)) fatal_perror("check_ptrace: PTRACE_OLDSETOPTIONS failed"); while(1){ - count++; if(ptrace(PTRACE_SYSEMU_SINGLESTEP, pid, 0, 0) < 0) goto fail; CATCH_EINTR(n = waitpid(pid, &status, WUNTRACED)); if(n < 0) fatal_perror("check_ptrace : wait failed"); if(WIFSTOPPED(status) && (WSTOPSIG(status) == (SIGTRAP|0x80))){ if (!count) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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