Date: Sun, 7 Dec 2008 22:21:07 GMT From: Eric Sabban <eric+freebsd.org@lame.net> To: freebsd-gnats-submit@FreeBSD.org Subject: amd64/129488: Kernel "bug" when using smbfs in smbfs_smb.c: kernel: bug: ecnt = 1, but m_len = 0 and m_next = 0 Message-ID: <200812072221.mB7ML7Br016042@www.freebsd.org> Resent-Message-ID: <200812072230.mB7MU055003933@freefall.freebsd.org>
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>Number: 129488 >Category: amd64 >Synopsis: Kernel "bug" when using smbfs in smbfs_smb.c: kernel: bug: ecnt = 1, but m_len = 0 and m_next = 0 >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-amd64 >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Sun Dec 07 22:30:00 UTC 2008 >Closed-Date: >Last-Modified: >Originator: Eric Sabban >Release: 7.0-RELEASE-p7 >Organization: none >Environment: FreeBSD sekret.lame.net 7.0-RELEASE-p6 FreeBSD 7.0-RELEASE-p6 #3: Thu Dec 4 21:48:54 PST 2008 root@sekret.lame.net:/usr/obj/usr/src/sys/SEKRET amd64 >Description: Shortly after booting the fileserver (leopard g5) and the smb client (freebsd 7.0p6) I mounted two disks over smb (mount //eric@g5/blah) from the server. I did an awful thing, just for the sake of it: for i in *.avi; do file=`echo ${i} | sed -e 's/.avi$//'`; ffmpeg -i "${file}.avi" "/usr/tmp/${file}.mp4" > /tmp/ffmpeg.$$ 2>&1 & done Ugly as that may have been, the kernel then spit out: smb_iod_recvall: drop resp with mid 4526 smb_iod_recvall: drop resp with mid 4527 smb_iod_recvall: drop resp with mid 4528 smb_iod_recvall: drop resp with mid 4530 smb_iod_recvall: drop resp with mid 4531 bug: ecnt = 1, but m_len = 0 and m_next = 0 (please report) Nothing really HAPPENED, but you asked me to report, so here I am. >How-To-Repeat: Start out a bunch of concurrent I/O from a fileserver that likely cannot handle it, I did it shortly after booting both the fileserver and the client. >Fix: If only I knew. >Release-Note: >Audit-Trail: >Unformatted:
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