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| author | Xie XiuQi <xiexiuqi@huawei.com> | 2014-01-24 14:00:52 -0600 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-01-25 15:31:58 -0800 |
| commit | e21404dc0ac7ac971c1e36274b48bb460463f4e5 (patch) | |
| tree | 601c1a75e303af903c56103a27e66cd2027b44ff /drivers/char | |
| parent | ccb3368cb4b97e2d8a763b894303e6a127f87bc8 (diff) | |
| download | linux-e21404dc0ac7ac971c1e36274b48bb460463f4e5.tar.gz linux-e21404dc0ac7ac971c1e36274b48bb460463f4e5.tar.bz2 linux-e21404dc0ac7ac971c1e36274b48bb460463f4e5.zip | |
ipmi: fix timeout calculation when bmc is disconnected
Loading ipmi_si module while bmc is disconnected, we found the timeout
is longer than 5 secs. Actually it takes about 3 mins and 20
secs.(HZ=250)
error message as below:
Dec 12 19:08:59 linux kernel: IPMI BT: timeout in RD_WAIT [ ] 1 retries left
Dec 12 19:08:59 linux kernel: BT: write 4 bytes seq=0x01 03 18 00 01
[...]
Dec 12 19:12:19 linux kernel: IPMI BT: timeout in RD_WAIT [ ]
Dec 12 19:12:19 linux kernel: failed 2 retries, sending error response
Dec 12 19:12:19 linux kernel: IPMI: BT reset (takes 5 secs)
Dec 12 19:12:19 linux kernel: IPMI BT: flag reset [ ]
Function wait_for_msg_done() use schedule_timeout_uninterruptible(1) to
sleep 1 tick, so we should subtract jiffies_to_usecs(1) instead of 100
usecs from timeout.
Reported-by: Hu Shiyuan <hushiyuan@huawei.com>
Signed-off-by: Xie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/char')
| -rw-r--r-- | drivers/char/ipmi/ipmi_si_intf.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c index 68c5ef5379aa..a5e048fb8b38 100644 --- a/drivers/char/ipmi/ipmi_si_intf.c +++ b/drivers/char/ipmi/ipmi_si_intf.c @@ -2773,7 +2773,7 @@ static int wait_for_msg_done(struct smi_info *smi_info) smi_result == SI_SM_CALL_WITH_TICK_DELAY) { schedule_timeout_uninterruptible(1); smi_result = smi_info->handlers->event( - smi_info->si_sm, 100); + smi_info->si_sm, jiffies_to_usecs(1)); } else if (smi_result == SI_SM_CALL_WITHOUT_DELAY) { smi_result = smi_info->handlers->event( smi_info->si_sm, 0); |