Greetings,
This was supposed to be corrected in the 3.17 push. I haven't seen it on
my systems over the past few weeks of testing. Can you provide more
details what was running when this occurred? What FS, hardware etc.
Ross Anderson
On 9/11/2014 11:02 PM, Stefan Priebe wrote:
Hi,
while trying to use bcache on 3.17-rc4 i got those messages and a load
of 1000.
Is this a known problem?
14-09-12 02:32:22 BUG: soft lockup - CPU#4 stuck for 23s!
[bcache_gc:1585]
2014-09-12 02:31:54 INFO: rcu_sched self-detected stall on CPU {
4} (t=150009 jiffies g=1762124 c=1762123 q=235323)
2014-09-12 02:31:42 BUG: soft lockup - CPU#4 stuck for 22s!
[bcache_gc:1585]
2014-09-12 02:31:14 BUG: soft lockup - CPU#4 stuck for 22s!
[bcache_gc:1585]
2014-09-12 02:30:46 BUG: soft lockup - CPU#4 stuck for 22s!
[bcache_gc:1585]
2014-09-12 02:30:18 BUG: soft lockup - CPU#4 stuck for 22s!
[bcache_gc:1585]
2014-09-12 02:29:50 BUG: soft lockup - CPU#4 stuck for 22s!
[bcache_gc:1585]
2014-09-12 02:29:22 BUG: soft lockup - CPU#4 stuck for 23s!
[bcache_gc:1585]
2014-09-12 02:28:54 INFO: rcu_sched self-detected stall on CPU {
4} (t=105006 jiffies g=1762124 c=1762123 q=209365)
2014-09-12 02:28:42 BUG: soft lockup - CPU#4 stuck for 23s!
[bcache_gc:1585]
2014-09-12 02:28:14 BUG: soft lockup - CPU#4 stuck for 22s!
[bcache_gc:1585]
2014-09-12 02:27:46 BUG: soft lockup - CPU#4 stuck for 22s!
[bcache_gc:1585]
2014-09-12 02:27:18 BUG: soft lockup - CPU#4 stuck for 22s!
[bcache_gc:1585]
2014-09-12 02:26:50 BUG: soft lockup - CPU#4 stuck for 22s!
[bcache_gc:1585]
2014-09-12 02:26:22 BUG: soft lockup - CPU#4 stuck for 22s!
[bcache_gc:1585]
2014-09-12 02:25:54 INFO: rcu_sched self-detected stall on CPU {
4} (t=60003 jiffies g=1762124 c=1762123 q=136221)
2014-09-12 02:25:42 BUG: soft lockup - CPU#4 stuck for 23s!
[bcache_gc:1585]
2014-09-12 02:25:14 BUG: soft lockup - CPU#4 stuck for 23s!
[bcache_gc:1585]
2014-09-12 02:24:46 BUG: soft lockup - CPU#4 stuck for 23s!
[bcache_gc:1585]
Stefan
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