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| author | Robert Mustacchi <rm@joyent.com> | 2012-01-10 20:33:03 -0500 |
|---|---|---|
| committer | Robert Mustacchi <rm@joyent.com> | 2012-01-10 20:33:03 -0500 |
| commit | 82dec0a6f9e2e62fb6a4e2fc08d397b21b6a21dc (patch) | |
| tree | 20c0eda8e65600cc1e8c7cb0ae31ddcd4ad85b11 /usr | |
| parent | 84058112076dd7aa47feea28f15e375fee68125a (diff) | |
| download | illumos-joyent-82dec0a6f9e2e62fb6a4e2fc08d397b21b6a21dc.tar.gz | |
1923 kernel panic in ire_round_robin due to divide by zero
Reviewed by: Gordon Ross <gordon.w.ross@gmail.com>
Reviewed by: Richard Lowe <richlowe@richlowe.net>
Approved by: Richard Lowe <richlowe@richlowe.net>
Diffstat (limited to 'usr')
| -rw-r--r-- | usr/src/uts/common/inet/ip/ip_ftable.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/usr/src/uts/common/inet/ip/ip_ftable.c b/usr/src/uts/common/inet/ip/ip_ftable.c index 7cb83a2a76..980436b578 100644 --- a/usr/src/uts/common/inet/ip/ip_ftable.c +++ b/usr/src/uts/common/inet/ip/ip_ftable.c @@ -815,6 +815,11 @@ ire_round_robin(irb_t *irb_ptr, ire_ftable_args_t *margs, uint_t hash, rw_enter(&irb_ptr->irb_lock, RW_WRITER); maxwalk = irb_ptr->irb_ire_cnt; /* Excludes condemned */ + if (maxwalk == 0) { + rw_exit(&irb_ptr->irb_lock); + return (NULL); + } + hash %= maxwalk; irb_refhold_locked(irb_ptr); rw_exit(&irb_ptr->irb_lock); |