diff options
author | rtm <rtm> | 2006-08-10 22:08:14 +0000 |
---|---|---|
committer | rtm <rtm> | 2006-08-10 22:08:14 +0000 |
commit | 5be0039ce9e22f140a29e167526c64c723c5be3c (patch) | |
tree | 4096ed2b728cbee37dd2adee06e83f0e908f72b6 /bio.c | |
parent | 8a8be1b8c36e38f58f8ba3e425b6e701ad65abf3 (diff) | |
download | xv6-labs-5be0039ce9e22f140a29e167526c64c723c5be3c.tar.gz xv6-labs-5be0039ce9e22f140a29e167526c64c723c5be3c.tar.bz2 xv6-labs-5be0039ce9e22f140a29e167526c64c723c5be3c.zip |
interrupts could be recursive since lapic_eoi() called before rti
so fast interrupts overflow the kernel stack
fix: cli() before lapic_eoi()
Diffstat (limited to 'bio.c')
-rw-r--r-- | bio.c | 8 |
1 files changed, 7 insertions, 1 deletions
@@ -8,7 +8,13 @@ #include "buf.h" struct buf buf[NBUF]; -struct spinlock buf_table_lock = { "buf_table" }; +struct spinlock buf_table_lock; + +void +binit(void) +{ + initlock(&buf_table_lock, "buf_table"); +} struct buf * getblk() |