Hi, > From: Michal Hocko [mailto:mhocko at kernel.org] > On Fri 31-07-15 11:23:00, ???? / KAWAI?HIDEHIRO wrote: > > > From: Michal Hocko [mailto:mhocko at kernel.org] > > > > There is a timeout of 1000ms in nmi_shootdown_cpus(), so I don't know > > > > why CPU 130 waits so long. I'll try to consider for a while. > > > > > > Yes, I do not understand the timing here either and the fact that the > > > log is a complete mess in the important parts doesn't help a wee bit. > > > > I'm interested in where "kernel panic -not syncing: " is. > > It may give us a clue. > > This one is lost in the mangled text: > [ 167.843771] U<0>[ 167.843771] hhuh. NMI received for unkn<0><0>[ 167.843765] Uh[ 16NM843774I own rea reived for > unknow<0 r 16n 2d 765] Uhhuh. CPU recei11. <0known reason 7. on770] Ker<[ - not rn NMI:nic - not contt sing > > <0 >[ : Not con.inu437azed and confused, b] Dtryingaed annue > > fu 167.8ut trying>[ to 7.<0377 167.843775] U<0>[ 167.843776] ]hhu.ived for u3nknown rMason 3 re oived for [nk167.843781] Thanks for the information. I anticipated that some lock contention on issuing messages (e.g. locks used by network/netconsole driver) delayed the panic procedure, but it seems not to be related because the panic message finished to be issued early. If I come up with something, I will post a mail. I think there may be potential issues. > 1. > <. N0>[ 167.843781] Uh. NMI recen 3d on CPU 0.i< >[ nowon 3d on] Chhuh.MI > eceived[ or7.843nknoUhhuh.wn rMason e3d ceCPivUd 120. > <0nk>no 167.wn843ason 3na s p120. > o<0er savi d6 e843ab88] Do yeu have a > <trange0>[ er saving mode e nabl1d?7<4][ 167 84hu94]MIuh. NceIived for unknown reas vdfor 1no3was0>[ 2d 67.84380on CI > rUe 12e. > ive7d8u3800wn rveaseo f2d on CPo3.r< u>k[o 1 rea6s.o2d8 oo you hn aPve <0st>a e power 1s7.843816] Do yoauv ng moade > enbslra?ng[ e 167.8438p41o]er shhuhavi.ngIroenived fbled?nknow > < reaso0> 2d on [PU1626.41]0> Uh67.h. NM387I] receihed for .nknown reason 2Nn MC U ceived for . > [son 2d on CPU 6. > < 160>7.8467.84873] Uhhuh. 3MI received 908 o knstra > [ n167.843908] Do ygo pave westrangesa pvnv mode enableng mode ed? > n<b0ed? Regards, Kawai
