I came across the following badness message during shutdown on a Power6 box. This was with 2.6.30-git12(3fe0344faf7fdcb158bd5c1a9aec960a8d70c8e8)
------------[ cut here ]------------ Badness at drivers/char/tty_ldisc.c:210 NIP: c000000000409428 LR: c000000000409410 CTR: 0000000000000000 REGS: c0000000374f37f0 TRAP: 0700 Not tainted (2.6.30-git12) MSR: 8000000000029032 <EE,ME,CE,IR,DR> CR: 24000484 XER: 00000001 TASK = c00000003d941ae0[8535] 'vhangup' THREAD: c0000000374f0000 CPU: 1 <6>GPR00: 0000000000000001 c0000000374f3a70 c000000000ef4550 0000000000000001 <6>GPR04: c000000000409410 c00000003e99f000 c000000000406ba0 0000000000000000 <6>GPR08: 0000000000000000 0000000000000000 0000000000000000 c0000000374f3a70 <6>GPR12: 0000000024000488 c000000001002600 00000000ffffffff ffffffffffffffff <6>GPR16: 00000000320c8a50 0000000000000002 0000000000000000 00000000320b03b0 <6>GPR20: 0000000000000000 0000000000000000 c00000003e1d3d00 0000000000000001 <6>GPR24: 0000000000000000 0000000000000000 0000000000000001 c00000003d4a05e0 <6>GPR28: 0000000000000000 c0000000013ffd38 c000000000e7e610 c0000000374f3a70 NIP [c000000000409428] .tty_ldisc_put+0xbc/0xf4 LR [c000000000409410] .tty_ldisc_put+0xa4/0xf4 Call Trace: [c0000000374f3a70] [c000000000409410] .tty_ldisc_put+0xa4/0xf4 (unreliable) [c0000000374f3b10] [c000000000409808] .tty_ldisc_reinit+0x38/0x80 [c0000000374f3ba0] [c00000000040a218] .tty_ldisc_hangup+0x190/0x260 [c0000000374f3c40] [c0000000004000d0] .do_tty_hangup+0x188/0x4c0 [c0000000374f3d20] [c000000000400480] .tty_vhangup_self+0x34/0x54 [c0000000374f3db0] [c0000000001917c8] .sys_vhangup+0x38/0x58 [c0000000374f3e30] [c000000000008534] syscall_exit+0x0/0x40 Instruction dump: 912b0088 4bcd2201 60000000 e87e8008 7f44d378 481c0735 60000000 801b0008 7c09fe70 7d200278 7c004850 54000ffe <0b000000> 7f63db78 4bd7cf0d 60000000 Not sure if this is a new issue. I haven't really paid attention to messages that are displayed during shutdown. Line 210 corresponds to the following code. static void tty_ldisc_put(struct tty_ldisc *ld) { ...... spin_unlock_irqrestore(&tty_ldisc_lock, flags); WARN_ON(ld->refcount); <<=== ....... Thanks -Sachin -- --------------------------------- Sachin Sant IBM Linux Technology Center India Systems and Technology Labs Bangalore, India --------------------------------- _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev