mirror/freebsd
1
0
Fork 0
mirror of https://git.FreeBSD.org/src.git synced 2025-01-19 15:33:56 +00:00
Code Issues Releases Activity

Backed out previous commit since it just causes panics unless a special

Browse Source 
value for MSGBUF_SIZE is configured.  MSGBUF_SIZE =
(32768 * bootverbose ? 2 : 1) is always 1 or 2, so there is not enough space
in the buffer for metadata, and blindly using the nonexistent space tends
to cause fatal pagefaults.  I think
MSGBUF_SIZE = (32768 * (bootverbose ? 2 : 1)) would be always 32768 since
bootverbose is only statically initialized to 0 early when MSGBUF_SIZE is
used.  MSGBUF_SIZE = (32768 * ((boothowto & RB_VERBOSE) ? 2 : 1)) should
work, but this belongs in <sys/msgbuf.h> even less than previous versions.
MSGBUF_SIZE shouldn't be a macro.
This commit is contained in:
Bruce Evans 2004-02-17 11:11:10 +00:00
parent 963385cf22
commit 82b976c5c3
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=125938
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
sys/sys/msgbuf.h
View File

@ -71,7 +71,7 @@ int msgbuf_peekbytes(struct msgbuf *mbp, char *buf, int buflen,
u_int *seqp);
#if !defined(MSGBUF_SIZE)
#define MSGBUF_SIZE (32768 * bootverbose ? 2 : 1)
#define MSGBUF_SIZE 32768
#endif
#endif