我们经常遇到这个问题。
我们的NAS装载点完美地工作，并突然间挂起。
当我们走，做我的terminal挂。
strace ls / srv / git
挂在这里
unmap(0x7f6a5c03f000, 4096) = 0 open("/usr/lib/locale/locale-archive", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=99158576, ...}) = 0 mmap(NULL, 99158576, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f6a5619e000 close(3) = 0 ioctl(1, SNDCTL_TMR_TIMEBASE or TCGETS, {B38400 opost isig icanon echo ...}) = 0 ioctl(1, TIOCGWINSZ, {ws_row=28, ws_col=117, ws_xpixel=0, ws_ypixel=0}) = 0 stat("/srv/git", ^C <unfinished ...> ps -ef | grep ls
给了我们很多这样的过程
user1 9099 9050 0 05:39 pts/7 00:00:00 ls --color=auto user1 9165 1 0 05:42 pts/8 00:00:00 ls /srv/git user1 9168 1 0 05:42 pts/8 00:00:00 ls /srv/git user1 9235 9111 0 05:47 pts/8 00:00:00 grep ls gt 40490 40483 0 Apr15 ? 00:00:00 ls -1 /srv/git/mirrors
dmesg的
Call Trace: [<ffffffffa026f36e>] ? rpc_make_runnable+0x7e/0x80 [sunrpc] [<ffffffffa026fc10>] ? rpc_execute+0x50/0xa0 [sunrpc] [<ffffffff810aaa21>] ? ktime_get_ts+0xb1/0xf0 [<ffffffff811242d0>] ? sync_page+0x0/0x50 [<ffffffff8152a1b3>] io_schedule+0x73/0xc0 [<ffffffff8112430d>] sync_page+0x3d/0x50 [<ffffffff8152ac7f>] __wait_on_bit+0x5f/0x90 [<ffffffff81124543>] wait_on_page_bit+0x73/0x80 [<ffffffff8109eb80>] ? wake_bit_function+0x0/0x50 [<ffffffff8113a525>] ? pagevec_lookup_tag+0x25/0x40 [<ffffffff8112496b>] wait_on_page_writeback_range+0xfb/0x190 [<ffffffff81139651>] ? do_writepages+0x21/0x40 [<ffffffff81124abb>] ? __filemap_fdatawrite_range+0x5b/0x60 [<ffffffff81124b38>] filemap_write_and_wait_range+0x78/0x90 [<ffffffff811c07ce>] vfs_fsync_range+0x7e/0x100 [<ffffffff811c08bd>] vfs_fsync+0x1d/0x20 [<ffffffffa030c930>] nfs_file_flush+0x70/0xa0 [nfs] [<ffffffff8118ac4c>] filp_close+0x3c/0x90 [<ffffffff8118ad45>] sys_close+0xa5/0x100 [<ffffffff8100b072>] system_call_fastpath+0x16/0x1b