Hi all,
yes I know.. vintage hardware :) It´s running Debian unstable updated to
approx a week ago (yay for tons of rebuilds to bisect ;)).
fabbione@sunfire:~/linux-2.6$ gcc --version
gcc (Debian 4.6.4-5) 4.6.4
kernel config is from debian, applied to the various bisect done on
Linus tree.
sunfire:~# cat /proc/cpuinfo
cpu : UltraSparc T1 (Niagara)
fpu : UltraSparc T1 integrated FPU
pmu : niagara
prom : OBP 4.28.9 2008/06/30 21:26
type : sun4v
ncpus probed : 24
..
commit 87fa05aeb3a5e8e21b1a5510eef6983650eff092
Author: Sam Ravnborg <sam@xxxxxxxxxxxx>
Date: Thu Apr 11 21:38:50 2013 +0200
sparc: Use generic idle loop
Add generic cpu_idle support
appears to be culprit and I can´t boot any kernel after that. Reverting
the commit makes the machine boot again (tested up to commit 4fbf888acc
from Linus tree).
Sorry I really don´t know that part of the code well enough to propose a
fix, but I can either provide access to the machine or test debugging
patches.
Thanks
Fabio
Few extra info:
with this commit applied (head to the commit):
[SNIP]
[ 68.089495] scsi0 : Emulex LPe1150 PCIe Fibre Channel Adapter on PCI
bus 08 device 00 irq 23
[ 68.089495] scsi0 : Emulex LPe1150 PCIe Fibre Channel Adapter on PCI
bus 08 device 00 irq 23
[ 89.429041] INFO: rcu_sched detected stalls on CPUs/tasks:[
89.429041] INFO: rcu_sched detected stalls on CPUs/tasks: { { 3 3 10 10
15 15} } (detected by 0, t=5342 jiffies, g=18446744073709551328,
c=18446744073709551327, q=2164)
(detected by 0, t=5342 jiffies, g=18446744073709551328,
c=18446744073709551327, q=2164)
[ 89.431437] * CPU[ 0]: TSTATE[0000000080001603]
TPC[000000000042b9d4] TNPC[000000000042b9d8] TASK[swapper/0:0]
[ 89.431437] * CPU[ 0]: TSTATE[0000000080001603]
TPC[000000000042b9d4] TNPC[000000000042b9d8] TASK[swapper/0:0]
[ 89.431462] BUG: soft lockup - CPU#3 stuck for 23s! [swapper/3:0]
[ 89.431462] BUG: soft lockup - CPU#3 stuck for 23s! [swapper/3:0]
[ 89.431470] BUG: soft lockup - CPU#1 stuck for 23s! [swapper/1:0]
[ 89.431470] BUG: soft lockup - CPU#1 stuck for 23s! [swapper/1:0]
[ 89.431479] BUG: soft lockup - CPU#2 stuck for 23s! [swapper/2:0]
[ 89.431479] BUG: soft lockup - CPU#2 stuck for 23s! [swapper/2:0]
[ 89.431484] Modules linked in:
[SNIP]
Most kernels in between that commit to 3.12:
[SNIP]
[ 68.392210] UDP hash table entries: 4096 (order: 4, 131072 bytes)
[ 68.393319] UDP-Lite hash table entries: 4096 (order: 4, 131072 bytes)
[ 68.395425] NET: Registered protocol family 1
[ 68.396008] pci 0001:05:02.0: Activating ISA DMA hang workarounds
-- no more output --
With Linus tree up to commit 4fbf888accb39 (didn´t test yet newer trees):
[ 60.770765] scsi2 : Emulex LPe1150 PCIe Fibre Channel Adapter on PCI
bus 08 device 00 irq 23
[ 81.923914] INFO: rcu_sched detected stalls on CPUs/tasks: {}
(detected by 4, t=5292 jiffies, g=18446744073709551336,
c=18446744073709551335,5)
[ 81.924215] INFO: Stall ended before state dump start
[ 145.419184] INFO: rcu_sched detected stalls on CPUs/tasks: {}
(detected by 0, t=21166 jiffies, g=18446744073709551336,
c=18446744073709551335,7)
[ 145.419482] INFO: Stall ended before state dump start
--
To unsubscribe from this list: send the line "unsubscribe sparclinux" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
