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Squid：“FD 44 标志=1：读/写失败：（13）权限被拒绝”

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Squid：“FD 44 标志=1：读/写失败：（13）权限被拒绝”

我在 freebsd 10.3 上使用 squid。当我在 Web 浏览器中设置代理地址时，我无法将文件附加到 mail.ru 上的邮件中。没有代理，它可以工作。在 access.log 中没有错误。在 cache.log 中我得到：

2017/05/29 21:12:16 kid1| local=217.151.68.36:34572 remote=217.69.139.216:443 FD 44 flags=1: read/write failure: (13) Permission denied
2017/05/29 21:12:16 kid1| local=217.151.68.36:36057 remote=217.69.139.216:443 FD 44 flags=1: read/write failure: (13) Permission denied

FD 可以改变如果我理解正确，如何使用 lson，那么

root@bkp_router:/home/ishayahu # lsof -d44
COMMAND   PID  USER   FD   TYPE             DEVICE SIZE/OFF NODE NAME
squid   30197 squid   44u  IPv4 0xfffff80029788810      0t0  TCP broadband-68-36.clients.extel.ru:48387->e.mail.ru:https (ESTABLISHED)

broadband-68-36.clients.extel.ru 是 ISP 的路由器

我怎样才能解决这个问题？

PS：设置如下

#request_body_max_size 0
#reply_body_max_size 0
#request_header_max_size 64 KB
#reply_header_max_size 64 KB
#client_request_buffer_max_size 50 Mb
#acl post method POST
#http_access allow post localnet

没有帮助

更新：ktrace -d -p 667 kdump>kdump.out

在 kdump.out 中搜索被拒绝的：

4529011-  6776 squid    GIO   fd 5 read 32 bytes
4529052-       0x0000 1b00 0000 0000 0000 feff 1000 0000 0000 400f 0000 0000 0000 0000 0000 0000 0000                 |................@...............|
4529197-
4529198-  6776 squid    RET   kevent 1
4529229-  6776 squid    CALL  write(0x1b,0x8057c3000,0x5b4)
4529281:  6776 squid    RET   write -1 errno 13 Permission denied
4529339-  6776 squid    CALL  write(0x4,0x802dbf000,0x88)
4529389-  6776 squid    GIO   fd 4 wrote 136 bytes
4529432:       "2017/06/04 17:34:06 kid1| local=217.151.68.36:42442 remote=217.69.139.216:443 FD 27 flags=1: read/write failure: (13) Permission denied
4529576-       "
4529585-  6776 squid    RET   write 136/0x88
4529622-  6776 squid    CALL  close(0x1b)
4529656-  6776 squid    RET   close 0
4529686-  6776 squid    CALL  close(0x19)

root@bkp_router:/home/ishayahu # cat kdump.out | grep -b10 "RET socket 27/0x1b"

4534031-  6776 squid    GIO   fd 25 read 196 bytes
4534074-       "CONNECT e.mail.ru:443 HTTP/1.1\r
4534115-        User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:55.0) Gecko/20100101 Firefox/55.0\r
4534204-        Proxy-Connection: keep-alive\r
4534236-        Connection: keep-alive\r
4534262-        Host: e.mail.ru:443\r
4534285-        \r
4534289-       "
4534298-  6776 squid    RET   read 196/0xc4
4534334-  6776 squid    CALL  socket(PF_INET,SOCK_STREAM,IPPROTO_TCP)
4534396:  6776 squid    RET   socket 27/0x1b
4534433-  6776 squid    CALL  fcntl(0x1b,F_GETFD,0)
4534477-  6776 squid    RET   fcntl 0
4534507-  6776 squid    CALL  fcntl(0x1b,F_SETFD,FD_CLOEXEC)
4534560-  6776 squid    RET   fcntl 0
4534590-  6776 squid    CALL  fcntl(0x1b,F_GETFL,0)
4534634-  6776 squid    RET   fcntl 2
4534664-  6776 squid    CALL  fcntl(0x1b,F_SETFL,0x6<O_RDWR|O_NONBLOCK>)
4534729-  6776 squid    RET   fcntl 0
4534759-  6776 squid    CALL  setsockopt(0x1b,0x6,0x1,0x7fffffffe484,0x4)
4534825-  6776 squid    RET   setsockopt 0

答案1

看起来是硬件问题：我用另一台电脑用同样的设置制作了路由器——一切正常

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