change in tcsh behavior

[Mateusz Piotrowski]

Hi,

On 7/27/20 9:30 PM, Robert Huff wrote:
> Hello:
> 	After upgrading to:
>
> FreeBSD 13.0-CURRENT #0 r363470: Fri Jul 24 08:44:41 EDT 2020 amd64
>
> 	tcsh behaves differently.
> 	In the old versiou, typing Ctl-t produced:
>
> load: 0.26  cmd: grep 10833 [getblk] 6.95r 0.05u 0.29s 1% 2528k
>
> 	Now I get:
>
> load: 0.26  cmd: grep 10833 [getblk] 6.95r 0.05u 0.29s 1% 2528k
> mi_switch+0x155 sleepq_switch+0x11a sleeplk+0x106 lockmgr_xlock_hard+0x3e5 __lockmgr_args+0x618 getblkx+0x13f cluster_read+0xc2 ffs_read+0x19f VOP_READ_APV+0x35 vn_read+0x1e8 vn_io_fault_doio+0x43 vn_io_fault1+0x16c vn_io_fault+0x1bb dofileread+0x81 sys_read+0xc0 amd64_syscall+0x140 fast_syscall_common+0xf8
>
> 	Nice ... but not useful.
> 	Haven't found this documented.
> 	How do I go back to the old output?

Set sysctl kern.tty_info_kstacks to 0.

See man termios for more details.

Cheers,

Mateusz