Messages in this thread |  | | From | Neil Brown <> | Date | Tue, 9 Oct 2001 09:30:11 +1000 (EST) | Subject | Re: kernel: svc: bad direction / kernel: svc: short len 4, dropping request |
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On Friday October 5, gregory.hosler@eno.ericsson.se wrote: > Hi, > > I'm running Linux kernel 2.4.7, and I'm seeing the following in my syslog: > > Oct 5 09:13:44 camelot kernel: svc: short len 4, dropping request > Oct 5 09:13:45 camelot kernel: svc: short len 4, dropping request > Oct 5 09:13:46 camelot kernel: svc: bad direction 525795537, dropping request > Oct 5 09:13:46 camelot kernel: svc: short len 4, dropping request > Oct 5 09:13:47 camelot kernel: svc: short len 4, dropping request > Oct 5 09:13:48 camelot kernel: svc: bad direction 525861077, dropping request > Oct 5 09:13:48 camelot kernel: svc: bad direction 525927291, dropping request > Oct 5 09:13:48 camelot kernel: svc: bad direction 525992033, dropping request > Oct 5 09:13:48 camelot kernel: svc: bad direction 526057939, dropping request > Oct 5 09:13:48 camelot kernel: svc: bad direction 526123899, dropping request > Oct 5 09:13:48 camelot kernel: svc: short len 4, dropping request > Oct 5 09:13:49 camelot kernel: svc: short len 4, dropping request > Oct 5 09:13:49 camelot kernel: svc: bad direction 526189001, dropping request > Oct 5 09:13:50 camelot kernel: svc: short len 4, dropping request > Oct 5 09:13:50 camelot kernel: svc: bad direction 526254179, dropping request > > several (3 to 5) messages per second. > > I have tracked down these messages to coming out of: > > /usr/src/linux/net/sunrpc/svc.c > > but I do not understand what's triggering them, or what to do about > them.
Looks like garbage packets are being delivered to either your NFS server port (port 2049) or your lockd server port (run rpcinfo -p to find the number).
I would run tcpdump on the interface watching for packets to those ports from unexpected sources.
NeilBrown
> > any suggestions, pointers, hints appreciated. > > thank you, and regards, > > -Greg > > ---------------------------------- > E-Mail: Gregory Hosler <gregory.hosler@eno.ericsson.se> > Date: 05-Oct-01 > Time: 11:23:35 > > You can release software that's good, software that's inexpensive, or > software that's available on time. You can usually release software > that has 2 of these 3 attributes -- but not all 3. > > ---------------------------------- > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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