【发布时间】：2017-08-05 13:37:53
【问题描述】：
我有一个错误。他随机出现。工作可能 2-3 天是正常的，但在某些事件之后开始高负载 cpu screen
当它出现时，我会在 php-fpm 上进行 strace
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=695, si_uid=33, si_status=0, ...} ---
getpid() = 10154
write(8, "C", 1) = -1 EAGAIN (Resource temporarily unavailable)
rt_sigreturn() = 56
clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7f5c688b6a10) = 707
clock_gettime(CLOCK_MONOTONIC, {760605, 823753717}) = 0
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=701, si_uid=33, si_status=0, si_utime=0, si_stime=0} ---
write(8, "C", 1) = -1 EAGAIN (Resource temporarily unavailable)
rt_sigreturn() = 140034873437968
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=698, si_uid=33, si_status=0, si_utime=0, si_stime=0} ---
write(8, "C", 1) = -1 EAGAIN (Resource temporarily unavailable)
rt_sigreturn() = 140034873437968
wait4(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], WNOHANG|WSTOPPED, NULL) = 32743
clock_gettime(CLOCK_MONOTONIC, {760605, 824399822}) = 0
clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7f5c688b6a10) = 708
clock_gettime(CLOCK_MONOTONIC, {760605, 825037147}) = 0
wait4(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], WNOHANG|WSTOPPED, NULL) = 32744
clock_gettime(CLOCK_MONOTONIC, {760605, 825227552}) = 0
clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7f5c688b6a10) = ? ERESTARTNOINTR (To be restarted)
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=702, si_uid=33, si_status=0, si_utime=0, si_stime=0} ---
getpid() = 10154
write(8, "C", 1) = -1 EAGAIN (Resource temporarily unavailable)
rt_sigreturn() = 56
clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7f5c688b6a10) = 710
clock_gettime(CLOCK_MONOTONIC, {760605, 827677677}) = 0
wait4(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], WNOHANG|WSTOPPED, NULL) = 32747
clock_gettime(CLOCK_MONOTONIC, {760605, 827886974}) = 0
clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7f5c688b6a10) = 711
clock_gettime(CLOCK_MONOTONIC, {760605, 828755896}) = 0
wait4(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], WNOHANG|WSTOPPED, NULL) = 32748
clock_gettime(CLOCK_MONOTONIC, {760605, 828921349}) = 0
clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7f5c688b6a10) = 712
clock_gettime(CLOCK_MONOTONIC, {760605, 829779218}) = 0
wait4(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], WNOHANG|WSTOPPED, NULL) = 32749
clock_gettime(CLOCK_MONOTONIC, {760605, 829951780}) = 0
clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7f5c688b6a10) = 713
clock_gettime(CLOCK_MONOTONIC, {760605, 830916994}) = 0
wait4(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], WNOHANG|WSTOPPED, NULL) = 32750
clock_gettime(CLOCK_MONOTONIC, {760605, 831123550}) = 0
clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7f5c688b6a10) = ? ERESTARTNOINTR (To be restarted)
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=707, si_uid=33, si_status=0, si_utime=0, si_stime=0} ---
getpid() = 10154
write(8, "C", 1) = -1 EAGAIN (Resource temporarily unavailable)
rt_sigreturn() = 56
clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7f5c688b6a10) = ? ERESTARTNOINTR (To be restarted)
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=708, si_uid=33, si_status=0, si_utime=0, si_stime=0} ---
getpid() = 10154
write(8, "C", 1) = -1 EAGAIN (Resource temporarily unavailable)
rt_sigreturn() = 56
clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7f5c688b6a10) = ? ERESTARTNOINTR (To be restarted)
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=710, si_uid=33, si_status=0, si_utime=0, si_stime=0} ---
更新内核不能解决这个问题？ 仅帮助 重启 php-fpm 进程 你能给我什么建议？谢谢
【问题讨论】：
-
apt-get upgrade是巧合还是您在这些随机事件中看到的？ -
@YvesLeBorg 我做 apt-get upgrade 毫无意义，看不出巧合