Re: port-xen/42370 (NetBSD 4.0/xen panic: bnx0: Double mbuf allocation failure!)

[Fredrik Pettai <pettai%nordu.net@localhost>]

The following reply was made to PR port-xen/42370; it has been noted by GNATS.

From: Fredrik Pettai <pettai%nordu.net@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: bouyer%NetBSD.org@localhost, kern-bug-people%NetBSD.org@localhost,
        port-xen-maintainer%NetBSD.org@localhost, 
netbsd-bugs%NetBSD.org@localhost,
        gnats-admin%NetBSD.org@localhost
Subject: Re: port-xen/42370 (NetBSD 4.0/xen panic: bnx0: Double mbuf allocation
 failure!)
Date: Sat, 09 Jan 2010 22:42:41 +0100

 On 11/26/09 9:42 PM, bouyer%NetBSD.org@localhost wrote:
 > Synopsis: NetBSD 4.0/xen panic: bnx0: Double mbuf allocation failure!
 > 
 > Responsible-Changed-From-To: port-xen-maintainer->kern-bug-people
 > Responsible-Changed-By: bouyer%NetBSD.org@localhost
 > Responsible-Changed-When: Thu, 26 Nov 2009 20:42:49 +0000
 > Responsible-Changed-Why:
 > Not xen specific; there have been report of this issue on native x86 too
 
 Hi,
 
 So during Christmas, I manage to get NetBSD 5(.0.1/i386) working with
 COMPAT_LINUX and my backup software (Veritas NetBackup) with a patch
 from Nicolas Joly
 (http://mail-index.netbsd.org/pkgsrc-users/2009/05/26/msg009936.html)
 and a workaround for the backup software (it seems like also mount
 points outside /emul/linux aren't allowed to read from even thought they
 are presented by /emul/linux/proc/mounts (or /etc/mtab within the
 emulation root).
 
 btw. since NetBSD 5 is now the preferred release to run, shouldn't
 pkgsrc emulators/suse100_base do the symlinking of /etc/mtab ->
 /proc/mounts correct for NetBSD 5 and onwards?
 This problem caused frustration for me before, and I suggested a patch
 for COMPAT_LINUX man page (at least to mention the new COMPAT_LINUX
 behavior). Because this more "locked" COMPAT_LINUX behavior wasn't
 mentioned anywhere in the documentation then, and I don't think that has
 changed.
 
 But back to the original problem...
 
 I got another bnx crash again, now running NetBSD 5.0.1/i386.
 Wasn't this fixed in NetBSD 5.0? Or was it correct in 5_STABLE?
 
 panic: bnx0: Double mbuf allocation failure!
 Begin traceback...
 fatal page fault in supervisor mode
 trap type 6 code 0 eip c053ed71 cs 8 eflags 10246 cr2 91 ilevel 6
 panic: trap
 Faulted in mid-traceback; aborting...
 dumping to dev 4,1 offset 9971839
 dump 410 409 408 407 406 405 404 403 402 401 400 399 398 397 396 395 394
 393 392 391 390 389 388 387 386 385 384 383 382 381 380 379 378 377 376
 375 374 373 372
 
 Thanks,
 /P