satoru-takeuchi

kernel/cgroup/cgroup.c:439:13: warning: 'cgroup_get' defined but not used [-Wunused-function]
 static void cgroup_get(struct cgroup *cgrp)
             ^
0: Fri Jun  9 19:41:36 JST 2017: OK
kernel/cgroup/cgroup.c:439:13: warning: 'cgroup_get' defined but not used [-Wunused-function]
 static void cgroup_get(struct cgroup *cgrp)
             ^
1: Fri Jun  9 19:42:50 JST 2017: OK
kernel/cgroup/cgroup.c:439:13: warning: 'cgroup_get' defined but not used [-Wunused-function]
 static void cgroup_get(struct cgroup *cgrp)

satoru-takeuchi

diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index 4e49637..1653a73 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -514,10 +514,9 @@ do_general_protection(struct pt_regs *regs, long error_code)
 	tsk->thread.error_code = error_code;
 	tsk->thread.trap_nr = X86_TRAP_GP;
 
-	if (show_unhandled_signals && unhandled_signal(tsk, SIGSEGV) &&
-			printk_ratelimit()) {

satoru-takeuchi

#!/bin/bash

export LANG=C

for ((i=0;1;i++)) ; do
  if make -j16 >/dev/null 2>>log.txt ; then
    echo "$i: $(date): OK" >>log.txt
  else
    echo "$i: $(date): NG" >>log.txt
  fi

satoru-takeuchi

[ 1281.616433] traps: cc1[1901] general protection ip:1131177 sp:7ffced3796e0 error:0 in cc1[400000+13d4000]
[ 1458.970321] traps: cc1[10914] general protection ip:d0ce47 sp:7ffe4d3ecaa0 error:0 in cc1[400000+13d4000]
[ 2130.058373] traps: cc1[17951] general protection ip:d0d118 sp:7fff687f2720 error:0 in cc1[400000+13d4000]
[ 2130.512729] traps: cc1[18217] general protection ip:d0d253 sp:7ffda6767bc0 error:0 in cc1[400000+13d4000]
[ 2313.045301] traps: cc1[27243] general protection ip:d0d10b sp:7ffd719d6630 error:0 in cc1[400000+13d4000]

satoru-takeuchi

code=128 comm=cc1 pid=19539 grp=0 res=0
           <...>-19539 [014] d...  3257.455416: <stack trace>
 => send_signal
 => force_sig_info
 => do_general_protection
 => general_protection

satoru-takeuchi

0: Tue Jun  6 21:03:41 DST 2017: OK
1: Tue Jun  6 21:07:28 DST 2017: OK
2: Tue Jun  6 21:11:15 DST 2017: OK
3: Tue Jun  6 21:15:02 DST 2017: OK
4: Tue Jun  6 21:18:48 DST 2017: OK
5: Tue Jun  6 21:22:39 DST 2017: OK
6: Tue Jun  6 21:26:24 DST 2017: OK
7: Tue Jun  6 21:30:07 DST 2017: OK
8: Tue Jun  6 21:33:49 DST 2017: OK
9: Tue Jun  6 21:37:32 DST 2017: OK

satoru-takeuchi

0: Tue Jun  6 17:46:59 DST 2017: OK
1: Tue Jun  6 17:50:49 DST 2017: OK
2: Tue Jun  6 17:54:37 DST 2017: OK
3: Tue Jun  6 17:58:25 DST 2017: OK
4: Tue Jun  6 18:02:16 DST 2017: OK
5: Tue Jun  6 18:06:11 DST 2017: OK
6: Tue Jun  6 18:10:04 DST 2017: OK
7: Tue Jun  6 18:13:51 DST 2017: OK
8: Tue Jun  6 18:17:46 DST 2017: OK
9: Tue Jun  6 18:21:40 DST 2017: OK

satoru-takeuchi

#!/bin/bash

export LANG=C

for ((i=0;1;i++)) ; do
  if make -j16 >/dev/null 2>>log.txt ; then
    echo "$i: $(date): OK" >>log.txt
  else
    echo "$i: $(date): NG" >>log.txt
  fi

satoru-takeuchi

0: Tue Jun  6 17:46:59 DST 2017: OK
1: Tue Jun  6 17:50:49 DST 2017: OK
2: Tue Jun  6 17:54:37 DST 2017: OK
3: Tue Jun  6 17:58:25 DST 2017: OK
4: Tue Jun  6 18:02:16 DST 2017: OK
5: Tue Jun  6 18:06:11 DST 2017: OK
6: Tue Jun  6 18:10:04 DST 2017: OK
7: Tue Jun  6 18:13:51 DST 2017: OK
8: Tue Jun  6 18:17:46 DST 2017: OK
9: Tue Jun  6 18:21:40 DST 2017: OK

satoru-takeuchi

/*
 * a light weight programming language interpreter
 *
 * usage: ./lang <code>
 *
 * - prefix notation
 * - 'A' to 'Z' can bs used for functions. 'P' is a specitial function to print
 *   the result of a evaluation
 * - 'a' to 'z' can be used for the arguments of a function. 'a' is the first
 *   argument, 'b' is the second one, and so on.