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3e5e9939cd
freebsd-dev/sys
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Ryan Libby 3e5e9939cd ddb: enable the use of ^C and ^S/^Q 
This lets one interrupt DDB's output, which is useful if paging is
disabled and the output device is slow.

This follows a previous implementation in svn r311952 / git
5fddef7999 which was reverted because it
broke DDB type-ahead.

Now, try this again, but with a 512-byte type-ahead buffer.  While there
is buffer space, control input is handled and non-control input is
buffered.  When the buffer is exhausted, the default is to print a
warning and drop further non-control input in order to continue handling
control input.  sysctl debug.ddb.prioritize_control_input can be set to
0 to instead preserve all input but lose immediate handling of control
input.  This could for example effect pasting of a large script into the
ddb console.

Suggested by:	Anton Rang <rang@acm.org>
Reviewed by:	markj
Discussed with:	imp
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D28676
2021-03-14 16:04:27 -07:00
..
amd64 x86: Update some stale comments in cpu_fork() and cpu_copy_thread(). 2021-03-12 09:48:49 -08:00
arm mvebu_gpio: Fix settings of gpio pin direction. 2021-03-07 11:41:30 +01:00
arm64 arm64: Add support for the RK805/RK808 RTC 2021-03-13 09:06:04 +11:00
bsm Add aio_writev and aio_readv 2021-01-02 19:57:58 -07:00
cam cam: Run all XPT_ASYNC ccbs in a dedicated thread 2021-03-12 13:29:42 -07:00
cddl Handle functions that use a nop in the arm64 fbt 2021-03-03 14:18:03 +00:00
compat linux(4): make getcwd(2) return ERANGE instead of ENOMEM 2021-03-12 15:31:45 +00:00
conf kern.mk: fix -Wno-error style to fix build with Clang 12 2021-03-10 17:34:35 -05:00
contrib zfs: merge OpenZFS master-9305ff2ed 2021-03-14 02:32:14 +01:00
crypto armv8crypto: fix AES-XTS regression introduced by ed9b7f44 2021-03-07 12:03:47 -08:00
ddb ddb: enable the use of ^C and ^S/^Q 2021-03-14 16:04:27 -07:00
dev Fix some common typos in comments 2021-03-13 18:26:15 +01:00
dts Remove DTS files for arm boards we don't support 2021-01-27 10:02:01 +00:00
fs Fix some common typos in comments 2021-03-13 18:26:15 +01:00
gdb Use atomic loads/stores when updating td->td_state 2021-02-18 14:02:48 +00:00
geom gmirror: Pre-allocate the timeout event structure 2021-03-11 15:45:15 -05:00
gnu Remove the old dts imported tree. 2021-01-15 20:09:55 +01:00
i386 i386: Fix a few typos 2021-03-13 16:10:01 +01:00
isa Move back the isa non-PNP driver deadline to FreeBSD 14. 2021-03-08 16:00:23 -07:00
kern Fetch the sigfastblock value in syscalls that wait for signals 2021-03-12 18:14:17 +00:00
kgssapi opencrypto: Introduce crypto_dispatch_async() 2021-02-08 09:19:19 -05:00
libkern Restore the augmented strlen commentary 2021-02-08 19:15:21 +00:00
mips Fix some common typos in comments 2021-03-13 18:26:15 +01:00
modules zfs: merge OpenZFS master-9305ff2ed 2021-03-14 02:32:14 +01:00
net Fix some common typos in comments 2021-03-13 18:26:15 +01:00
net80211 net80211: Fix a typo in a comment 2021-03-13 15:51:30 +01:00
netgraph netgraph/ng_bridge: Add counters for the first link, too 2021-02-10 19:05:37 +01:00
netinet Fix some common typos in comments 2021-03-13 18:26:15 +01:00
netinet6 Flush remaining routes from the routing table during VNET shutdown. 2021-03-10 21:10:14 +00:00
netipsec Revert "SO_RERROR indicates that receive buffer overflows should be handled as errors." 2021-02-08 22:32:32 +00:00
netpfil Fix a few typos in comments 2021-03-13 16:37:28 +01:00
netsmb
nfs
nfsclient
nfsserver
nlm
ofed ofed: quiet gcc -Wint-in-bool-context 2021-02-24 15:56:16 -08:00
opencrypto ktls: Fix non-inplace TLS 1.3 encryption. 2021-03-10 11:07:40 -08:00
powerpc SPDX: Spell 4 clause BSD license correctly 2021-03-11 14:17:54 -07:00
riscv riscv: fix errors in some atomic type aliases 2021-03-04 16:59:58 -04:00
rpc nfs-over-tls: handle res.gid.gid_val correctly for memory allocation 2021-01-12 13:59:52 -08:00
security Add a comment on why the call to mac_vnode_relabel() might be in the wrong 2021-02-27 16:25:26 +00:00
sys kobj: avoid gcc -Wcast-function-type 2021-03-14 16:04:27 -07:00
teken loader: implement framebuffer console 2021-01-02 21:41:36 +02:00
tests Enable running fib tests inside vnet jail. 2021-01-17 20:32:26 +00:00
tools syscalls.master: Add a new syscall type: RESERVED 2021-01-26 18:27:44 +00:00
ufs softdep_unmount: assert that no dandling dependencies are left 2021-03-12 13:31:08 +02:00
vm uma: allow uma_zfree_pcu(..., NULL) 2021-03-12 12:12:35 +01:00
x86 x86: tsc: deprioritize TSC on VirtualBox 2021-03-08 14:43:06 -06:00
xdr
xen xen: remove .swp file from public headers 2021-01-11 18:14:11 +01:00
Makefile