[LU-10554] trivial typo on lnetctl command line generates LBUG on lustre client

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.11.0
• Affects Version/s: Lustre 2.10.2
• Environment: lustre client 10.2.1; OS: slf6.8; kernel: 2.6.32-642.15.1.el6.x86_64; ; Custom rpm rebuild:; rpmbuild --rebuild --without servers --with lnet-dlc --with lustre-utils ./lustre-2.10.2-1.src.rpm
• Severity: 3
• Assignee: Sonia Sharma (Inactive)
• Reporter: Alex Kulyavtsev

Description

I'm trying lnetctl commands. I tried to specify interface as ib0 and it crashed client node with LBUG.
I think lnetctl can just report the error without LBUG.

[root@tev0509 rpmbuild]# lnetctl net show
net:

• net type: lo
  local NI(s):
• nid: 0@lo
  status: up
• net type: o2ib
  local NI(s):
• nid: 192.168.176.72@o2ib
  status: up
  interfaces:
  0: ib0

1. lnetctl lnet unconfigure
2. lnetctl lnet configure
3. lnetctl net show
   net:

• net type: lo
  local NI(s):
• nid: 0@lo
  status: up

1. lnetctl net add --if ib0

Message from syslogd@tev0509 at Jan 23 15:30:15 ...
kernel:LNetError: 30614:0:(api-ni.c:1499:lnet_startup_lndnet()) ASSERTION( libcfs_isknown_lnd(lnd_type) ) failed:

Message from syslogd@tev0509 at Jan 23 15:30:15 ...
kernel:LNetError: 30614:0:(api-ni.c:1499:lnet_startup_lndnet()) LBUG

==========
kernel.log :

2018-01-23 15:30:15 Pid: 30614, comm: lnetctl
2018-01-23 15:30:15
2018-01-23 15:30:15 Call Trace:
2018-01-23 15:30:15 [<ffffffffa0a33885>] libcfs_debug_dumpstack+0x55/0x80 [libcfs]
2018-01-23 15:30:15 [<ffffffffa0a339cf>] lbug_with_loc+0x3f/0x90 [libcfs]
2018-01-23 15:30:15 [<ffffffffa0a95b38>] lnet_startup_lndnet+0x8b8/0x8c0 [lnet]
2018-01-23 15:30:15 [<ffffffffa0a4a65b>] ? cfs_percpt_lock+0x5b/0x110 [libcfs]
2018-01-23 15:30:16 [<ffffffffa0a96cf4>] lnet_add_net_common+0x134/0x480 [lnet]
2018-01-23 15:30:16 [<ffffffffa0a97354>] lnet_dyn_add_ni+0x194/0x1c0 [lnet]
2018-01-23 15:30:16 [<ffffffffa0a3f311>] ? libcfs_debug_msg+0x41/0x50 [libcfs]
2018-01-23 15:30:16 [<ffffffffa0ab1668>] lnet_ioctl+0x268/0x290 [lnet]
2018-01-23 15:30:16 [<ffffffffa0a3d2b8>] libcfs_ioctl+0x118/0x4d0 [libcfs]
2018-01-23 15:30:16 [<ffffffffa0a39231>] libcfs_psdev_ioctl+0x51/0x100 [libcfs]
2018-01-23 15:30:16 [<ffffffff811af742>] vfs_ioctl+0x22/0xa0
2018-01-23 15:30:16 [<ffffffff811af8e4>] do_vfs_ioctl+0x84/0x580
2018-01-23 15:30:16 [<ffffffff811a7bc6>] ? final_putname+0x26/0x50
2018-01-23 15:30:16 [<ffffffff811afe61>] sys_ioctl+0x81/0xa0
2018-01-23 15:30:16 [<ffffffff8100b0d2>] system_call_fastpath+0x16/0x1b
2018-01-23 15:30:16
2018-01-23 15:30:16 Kernel panic - not syncing: LBUG
2018-01-23 15:30:16 Pid: 30614, comm: lnetctl Tainted: P – ------------ 2.6.32-642.15.1.el6.x86_64 #1
2018-01-23 15:30:16 Call Trace:
2018-01-23 15:30:16 [<ffffffff815484e1>] ? panic+0xa7/0x179
2018-01-23 15:30:16 [<ffffffffa0a339e6>] ? lbug_with_loc+0x56/0x90 [libcfs]
2018-01-23 15:30:16 [<ffffffffa0a95b38>] ? lnet_startup_lndnet+0x8b8/0x8c0 [lnet]
2018-01-23 15:30:16 [<ffffffffa0a4a65b>] ? cfs_percpt_lock+0x5b/0x110 [libcfs]
2018-01-23 15:30:16 [<ffffffffa0a96cf4>] ? lnet_add_net_common+0x134/0x480 [lnet]
2018-01-23 15:30:16 [<ffffffffa0a97354>] ? lnet_dyn_add_ni+0x194/0x1c0 [lnet]
2018-01-23 15:30:16 [<ffffffffa0a3f311>] ? libcfs_debug_msg+0x41/0x50 [libcfs]
2018-01-23 15:30:16 [<ffffffffa0ab1668>] ? lnet_ioctl+0x268/0x290 [lnet]
2018-01-23 15:30:16 [<ffffffffa0a3d2b8>] ? libcfs_ioctl+0x118/0x4d0 [libcfs]
2018-01-23 15:30:16 [<ffffffffa0a39231>] ? libcfs_psdev_ioctl+0x51/0x100 [libcfs]
2018-01-23 15:30:16 [<ffffffff811af742>] ? vfs_ioctl+0x22/0xa0
2018-01-23 15:30:16 [<ffffffff811af8e4>] ? do_vfs_ioctl+0x84/0x580
2018-01-23 15:30:16 [<ffffffff811a7bc6>] ? final_putname+0x26/0x50
2018-01-23 15:30:16 [<ffffffff811afe61>] ? sys_ioctl+0x81/0xa0
2018-01-23 15:30:16 [<ffffffff8100b0d2>] ? system_call_fastpath+0x16/0x1b
2018-01-23 15:30:16 -----------[ cut here ]-----------
2018-01-23 15:30:16 WARNING: at arch/x86/kernel/smp.c:118

Issue Links

• is related to: LU-10151 lnetctl gives the worst configration warning