NetBSD Problem Report #43652

From jmmv@netbsd.org  Thu Jul 22 10:50:57 2010
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Date: Thu, 22 Jul 2010 10:50:57 +0000 (UTC)
From: jmmv@netbsd.org
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To: gnats-bugs@gnats.NetBSD.org
Subject: savecore does not work
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>Number:         43652
>Category:       port-shark
>Synopsis:       savecore does not work
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    port-shark-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Jul 22 10:55:00 +0000 2010
>Last-Modified:  Sat Jul 24 19:50:01 +0000 2010
>Originator:     Julio Merino
>Release:        NetBSD 5.99.30
>Organization:
Julio Merino
>Environment:


System: NetBSD shark 5.99.30 NetBSD 5.99.30 (GENERIC) #0: Sat Jun 19 12:22:43 IST 2010  jmmv@...:/home/jmmv/os/netbsd/obj.shark/home/jmmv/os/netbsd/src/sys/arch/shark/compile/GENERIC shark
Architecture: i386
Machine: i386
>Description:
	Setting as the highest priority because non-working kernel dumps make
	crashes very hard to debug.

	Copying email from port-arm::

	http://mail-index.netbsd.org/port-arm/2010/06/20/msg000984.html

	-----
	I've just updated my DNARD machine with a -current build of shark and,
	when running the tests, the system panics and reboots.  I can see the
	text below in the console, and it looks like the kernel correctly
	dumped core... however, when savecore starts after the reboot, it does
	not recover the kernel core (and it doesn't show any messages at all).

	panic: pool_destroy: pool busy: still out: 1
	cpu0: Begin traceback...
	0xf1f78ef0
	scp=0xf1f78ef0 rlv=0xf1f78ebc (0xf1f78ebc)
	rsp=0xf1f78ec4 rfp=0xf0183488
	Bad frame pointer: 0xf0183488
	cpu0: End traceback...
	boot: howto=00000104 curlwp=0xf1d32ca0
	current_mask=0000c3b8
	ipl_bio=ffff3d5f ipl_net=ffff3d5f ipl_tty=ffff3d5f ipl_vm=ffff3d5f
	ipl_audio=ffff3d5f ipl_clock=ffff3c5f ipl_none=ffffffff
	spl_masks[0]=ffffffff
	spl_masks[1]=ffffffff
	spl_masks[2]=ffffffff
	spl_masks[3]=ffffffff
	spl_masks[4]=ffffffff
	spl_masks[5]=ffff3d5f
	spl_masks[6]=ffff3c5f
	spl_masks[7]=ffff3c47

	dumping to dev 16,1 offset 75287
	dump 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
	25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47
	48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70
	71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91
	succeeded
	-----

	And the only answer:

	-----
	I thought I'd fixed this issue some time ago:
	http://mail-index.netbsd.org/source-changes/2008/01/01/0014.html
	http://mail-index.netbsd.org/source-changes/2008/01/01/0016.html

	Nick then fixed up gdb, and tweaked the stack layout:
	http://mail-index.netbsd.org/source-changes/2008/01/12/0018.html
	http://mail-index.netbsd.org/source-changes/2008/01/12/0019.html

	So it should work.

	My first thought is that perhaps shark isn't using something from the
	above, and has it's own version due to having to interact with OFW.

	Does savecore -v show anything useful?
	-----

>How-To-Repeat:
	Make the system crash (atf-run from /usr/tests should be enough).
	Let it dump core, reboot, and see that /var/crash is empty.
>Fix:


>Audit-Trail:
From: matthew green <mrg@eterna.com.au>
To: gnats-bugs@NetBSD.org
Cc: port-shark-maintainer@netbsd.org, gnats-admin@netbsd.org,
    netbsd-bugs@netbsd.org
Subject: re: port-shark/43652: savecore does not work
Date: Sun, 25 Jul 2010 05:47:11 +1000

 i setup a dump partition on my shark and fired off atf-run but it
 didn't startup due to my system being NFS based:

 7oclock /usr/tests# atf-run
 Content-Type: application/X-atf-tps; version="2"

 info: atf.version, Automated Testing Framework 0.10 (atf-0.10)
 [ ... ]
 tps-count: 229
 terminate called after throwing an instance of 'atf::system_error'
   what():  atf::atf_run::set_immutable(/tmp/atf-run.01203a): chflags(/tmp/atf-run.01203a) failed: Operation not supported
 Abort (core dumped)
 1.292u 3.888s 0:06.69 77.2%     0+0k 0+0io 0pf+0w


 (i should probably file a PR about this, but maybe you can just
 fix it really quickly ;-)


 .mrg.

>Unformatted:

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