Re: FreeBSD 10-STABLE/sparc64 panic
Chris Ross <[email protected]>
| Newsgroups | gmane.os.freebsd.devel.sparc |
|---|---|
| Message-ID | <[email protected]> |
On Oct 1, 2014, at 22:53 , Chris Ross <[email protected]> wrote: > On Sep 29, 2014, at 00:22 , John-Mark Gurney <[email protected]> wrote: >> If you could get a core dump (call doadump) that'd be good, but dumping >> the stack of the tid that held the spinlock too long would be a good >> start.. > > I fear I'm going to need some help doing this. I'm not sure what I need to > do to get into ddb. (And, after that, I'm not sure how to dump the stack of > the tld that held the spinlock) Okay. I rebuilt GENERIC after adding options DDB, and found the following: spin lock 0xc0ccbdb0 (smp rendezvous) held by 0xfffff8000559f6d0 (tid 100351) too long timeout stopping cpus panic: spin lock held too long [...] db> thread 100351 [ thread pid 299 tid 100351 ] sched_switch+0x3e0: call cpu_switch db> thread [ thread pid 299 tid 100351 ] sched_switch+0x3e0: call cpu_switch db> bt Tracing pid 299 tid 100351 td 0xfffff8000559f6d0 mi_switch() at mi_switch+0x19c critical_exit() at critical_exit+0x9c spinlock_exit() at spinlock_exit+0x8 turnstile_chain_unlock() at turnstile_chain_unlock+0x6c __mtx_unlock_sleep() at __mtx_unlock_sleep+0x9c bge_init() at bge_init+0x5c ether_ioctl() at ether_ioctl+0x70 M_PLIMIT() at M_PLIMIT+0x8 db> dump Cannot dump: no dump device specified. db> Apparently, I don't have a dump device set, so I'll to fix that next and get a core dump. I'm not sure, however, if what I provided above was the stack of the tid as was requested. At least, it's not 100% consistent. Since I had a DDB kernel running, while trying to get the system back up to multiuser, I did get many more panic's to experiment with, and doing the same "thread NNN", "bt" on many passes I sometimes got different results. Perhaps I'm doing something wrong? Or worse, it may not be 100% consistent. :-/ A pointer to what I need to do within ddb would be appreciated, if I'm doing anything wrong (or suboptimmally), or any other instructions. I'll try to get a dump device specified. Thanks. - Chris _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-sparc64 To unsubscribe, send any mail to "[email protected]"