kre@mulga.OZ (Robert Elz) (10/01/84)
Index: sys/quota_sys.c 4.2bsd FIX
Description:
If you attempt to set a new disk quota on a user who
has recently deleted some files, the system will
quite likely soon panic with "maknode: dquot".
This has been known to appear as if the problem is
setting disk quotas of a user who is logged in.
Repeat-By:
Find some user who has no quotas, have him log in &
delete some files (create them first if necessary)
then set quotas on that filesystem (the one that
files were deleted on). Have the user create the
files again (any contents, or none). Unless you're
very lucky, you will get a panic("maknode: dquot").
(Of course, the system may have panic'd because of
some other user creating a file before you get a chance).
Fix:
The following diff is to sys/quota_sys.c, the line numbers
are most probably way out, but its right near the end of
function setdlim() (last 10 lines). First piece of text
is the old (buggy) version, second is the fixed one.
*** /tmp/quota_sys.c Mon Oct 1 05:27:25 1984
--- quota_sys.c Sun Jul 15 07:13:23 1984
***************
*** 171,177
if (dq == odq)
return (error);
for (ip = inode; ip < inodeNINODE; ip++)
! if (ip->i_uid == q->q_uid && ip->i_dev == dev) {
if (dq == NODQUOT)
dqrele(ip->i_dquot);
else
--- 171,177 -----
if (dq == odq)
return (error);
for (ip = inode; ip < inodeNINODE; ip++)
! if (ip->i_uid == q->q_uid && ip->i_dev == dev && ip->i_mode) {
if (dq == NODQUOT)
dqrele(ip->i_dquot);
else
Robert Elz decvax!mulga!kre