Messages in this thread | | | Date | Tue, 11 Nov 2008 17:14:01 +0100 | From | Heiko Carstens <> | Subject | Re: [Bug #11989] Suspend failure on NForce4-based boards due to chanes in stop_machine |
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> > Could you please apply the following debug patch (due to Jiangshan and > > myself)? Then you should be able to build with CONFIG_RCU_TRACE, > > then mount debugfs after boot, for example, on /debug. This will > > create a /debug/rcu directory with three files, "rcucb", "rcu_data", > > and "rcu_bh_data". Since you are still able to log in, could you > > please send the contents of these three files? > > > > Thanx, Paul > > This time with the patch actually attached... Thanks to Peter Z. > for alerting me to my omission.
Well, your patch doesn't apply on git head. However I used preemptible RCU instead and had tracing enabled.
This is the output of the three files after it stalled (and continued, because I caused an interrupt by sending a network packet) twice:
[root@h0545001 rcu]# cat rcuctrs CPU last cur F M 1 0 0 1 1 3 0 0 1 1 4 0 0 0 0 5 0 0 0 1 6 0 0 0 0 ggp = 1640, state = waitack
[root@h0545001 rcu]# cat rcugp oldggp=1652 newggp=1655
[root@h0545001 rcu]# cat rcustats na=33948 nl=3 wa=33945 wl=0 da=33945 dl=0 dr=33945 di=0 1=0 e1=0 i1=1674 ie1=4 g1=1670 a1=1920 ae1=251 a2=1669 z1=1669 ze1=0 z2=1669 m1=4411 me1=2742 m2=1669
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