On Fri, Oct 12, 2012 at 1:56 AM, Cyberman Wu <cyphe...@gmail.com> wrote: > Sorry to use that big mail list account since I don't know any > specific mail list account should be used for that problem. > > We're running Linux box on Gx platform from Tilera. The kernel use > some vendor specific patches, but most of them > are the same as standard kernel. > > We encounter a problem occasionally, that I'm trying to resolve it. > But while I used 'ps' to get process information, > the new launched ps print out nothing and can't exit, ^C doesn't work. > I find out its pid under /proc, and it's in RUNNING > state: > # cat status > Name: ps > State: R (running) > Tgid: 1298 > Pid: 1298 > PPid: 1 > TracerPid: 0 > Uid: 0 0 0 0 > Gid: 0 0 0 0 > FDSize: 64 > Groups: 0 1 2 3 4 6 10 489 > VmPeak: 3776 kB > VmSize: 3712 kB > VmLck: 0 kB > VmHWM: 2624 kB > VmRSS: 2624 kB > VmData: 832 kB > VmStk: 256 kB > VmExe: 192 kB > VmLib: 2176 kB > VmPTE: 6 kB > VmSwap: 0 kB > Threads: 1 > SigQ: 7/8113 > SigPnd: 0000000000000100 > ShdPnd: 00000000000a0103 > SigBlk: 0000000000000000 > SigIgn: 0000000000000004 > SigCgt: 0000000073d3fef9 > CapInh: 0000000000000000 > CapPrm: ffffffffffffffff > CapEff: ffffffffffffffff > CapBnd: ffffffffffffffff > Cpus_allowed: f,ffffffff > Cpus_allowed_list: 0-35 > Mems_allowed: 3 > Mems_allowed_list: 0-1 > voluntary_ctxt_switches: 1 > nonvoluntary_ctxt_switches: 0 > > And it can't be killed even using SIGKILL. > > Since it's under *RUNNING* status, its stack can't be dumped. Is there > any exist mechanism can be used to > get it stack, or other information, to help me figure out what's the > cause of ps pend on *RUNNING*? > My answer may be silly, but did you tried running with strace?
> > System information: > # uname -a > Linux localhost 2.6.38.8-MDE-4.0.0.141101 #7 SMP Fri Sep 28 21:46:08 > CST 2012 tilegx GNU/Linux > > > > Best regards. > > -- > Cyberman Wu > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majord...@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
