Date: Wed, 12 May 1999 15:13:53 -0700 (PDT) From: Julian Elischer <julian@whistle.com> To: Matthew Dillon <dillon@apollo.backplane.com> Cc: Peter Wemm <peter@netplex.com.au>, current@FreeBSD.ORG Subject: Re: problem with dev_t changes and pageout.. Message-ID: <Pine.BSF.3.95.990512151302.22596D-100000@current1.whistle.com> In-Reply-To: <199905122048.NAA88350@apollo.backplane.com>
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now now :-) On Wed, 12 May 1999, Matthew Dillon wrote: > Maybe whoever committed the supposedly innocuous dev_t changes should > back it out. > > Just a thought. > > -Matt > Matthew Dillon > <dillon@backplane.com> > : > :It looks like something has come unstuck: > : > :Fatal trap 12: page fault while in kernel mode > :mp_lock = 00000002; cpuid = 0; lapic.id = 00000000 > :fault virtual address = 0x28 > :fault code = supervisor read, page not present > :instruction pointer = 0x8:0xc017bb67 > :stack pointer = 0x10:0xc5d97de4 > :frame pointer = 0x10:0xc5d97df0 > :code segment = base 0x0, limit 0xfffff, type 0x1b > : = DPL 0, pres 1, def32 1, gran 1 > :processor eflags = interrupt enabled, resume, IOPL = 0 > :current process = 2 (pagedaemon) > :interrupt mask = net bio cam <- SMP: XXX > :kernel: type 12 trap, code=0 > :Stopped at spec_strategy+0x93: movl 0x28(%edx),%eax > : ^^^^^^^^^^^ %edx = null > :db> trace > :spec_strategy(c5d97e1c) at spec_strategy+0x93 > :swap_pager_putpages(c02904fc,c5d97ecc,2,0,c5d97e60) at swap_pager_putpages+0x3e1 > :default_pager_putpages(c02904fc,c5d97ecc,2,0,c5d97e60) at default_pager_putpages+0x17 > :vm_pageout_flush(c5d97ecc,2,0,c5d97eb0,c02182cf) at vm_pageout_flush+0x91 > :vm_pageout_clean(c04d6b60,80000000,c013e290,2000,c5d97f78) at vm_pageout_clean+0x1f1 > :vm_pageout_scan(80000000,c02789c0,c02789c0,c5d97fac,c013e2c3) at vm_pageout_scan+0x45e > :vm_pageout(c5d8fdf7,c0255500,c02789c0,c020c640,c020c748) at vm_pageout+0x221 > :kproc_start(c02789c0) at kproc_start+0x33 > :fork_trampoline(10b8a0,d88e0000,18b8c08e,8e000000,24448be0) at fork_trampoline+0x30 > :db> ps > : pid proc addr uid ppid pgrp flag stat wmesg wchan cmd > : 438 c680da40 c6818000 495 282 277 000004 3 biord c332d9c0 p4d > : 437 c5d8c340 c6802000 433 417 415 004084 3 piperd c6760660 tee > : 436 c680dd00 c6810000 433 417 415 004004 3 biord c33626f8 p4 > : 418 c680dba0 c6815000 433 415 415 004084 3 piperd c6760700 mail > : 417 c680de60 c680e000 433 415 415 004084 3 wait c680de60 sh > :[..] > : > :The offending line in spec_strategy is: > : (*bdevsw(bp->b_dev)->d_strategy)(bp); > : > :d_strategy was null.. I'm still looking. > : > :(I think this is the first time the box paged out since booting a few hours > :ago, it's got 128M, but p4d has got a lot of stuff to deal with and can hit > :a vsize of 70MB or so.) > : > :Cheers, > :-Peter > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-current" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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