[OpenAFS] Windows client spraying file server.

Mon, 05 Oct 2009 09:44:21 -0400

This is a cryptographically signed message in MIME format.

--------------ms050400070707060207090906
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 7bit

This was fixed in 1.5.63:

 * When given a choice between an error from rx_Write()
   or RXAFS_EndStoreData(), use the rx_Write() error.
   This ensures that over quota and access denied errors
   are acted upon.

Jeffrey Altman

Anders Magnusson wrote:
> We just noticed a quite disturbing event on some windows clients; they
> are sending packets continuously to
> a fileserver, causing the fileserver process to take 100% CPU.  And more
> annoying, noone is
> logged in to the machines when they do so.  afsd_service works, but
> cannot be restarted and have to be
> killed hard.  Despite this, afs works when logging in to the machine but
> it continue to spray packets.
> 
> Fileserver runs 1.4.11, client 1.5.62.  I didn't notice anything in the
> changelog that says that this bug
> is fixed in a later version.
> 
> A quick fs trace -on + fs trace -dump gives entries like the below over
> and over again.  Any hints?
> 
> -- Ragge
> 
> 
> time 0.866130, tid 3756 rx_Write succeeded bp 0x05365C14, 4096
> time 0.866260, tid 3756 rx_Write succeeded bp 0x05365CA4, 4096
> time 0.884850, tid 3756 rx_Write failed bp 0x05365D34, 0 != 4096
> time 0.884870, tid 3756 cm_Analyze connp 0x293BC060, code 0xffffffff
> time 0.884870, tid 3756 cm_Analyze: Rx Call Dead addr[130.240.42.225]
> forcedNew[no]
> time 0.884870, tid 3756 CALL StoreData FAILURE scp 0x03D89798, code
> 0x66543202
> time 0.884930, tid 3756 cm_ConnByServer returning conn 0x293BC060
> time 0.884960, tid 3756 CALL StartRXAFS_StoreData64 scp 0x03D89798,
> offset 0x0:00025000, length 0x15000
> time 0.885400, tid 3756 rx_Write succeeded bp 0x05365284, 4096
> time 0.885470, tid 3756 rx_Write succeeded bp 0x05365314, 4096
> time 0.885530, tid 3756 rx_Write succeeded bp 0x053653A4, 4096
> time 0.885570, tid 3756 rx_Write succeeded bp 0x05365434, 4096
> time 0.885610, tid 3756 rx_Write succeeded bp 0x053654C4, 4096
> time 0.885650, tid 3756 rx_Write succeeded bp 0x05365554, 4096
> time 0.885700, tid 3756 rx_Write succeeded bp 0x053655E4, 4096
> time 0.885740, tid 3756 rx_Write succeeded bp 0x05365674, 4096
> time 0.885780, tid 3756 rx_Write succeeded bp 0x05365704, 4096
> time 0.886720, tid 3856 SRXAFSCB_TellMeAboutYourself from host
> 0x82f02ae1 port 7000
> time 0.888370, tid 3756 rx_Write succeeded bp 0x05365794, 4096
> time 0.888430, tid 3756 rx_Write succeeded bp 0x05365824, 4096
> time 0.888490, tid 3756 rx_Write succeeded bp 0x053658B4, 4096
> time 0.888570, tid 3756 rx_Write succeeded bp 0x05365944, 4096
> time 0.888630, tid 3756 rx_Write succeeded bp 0x053659D4, 4096
> time 0.888690, tid 3756 rx_Write succeeded bp 0x05365A64, 4096
> time 0.888790, tid 3756 rx_Write succeeded bp 0x05365AF4, 4096
> time 0.888850, tid 3756 rx_Write succeeded bp 0x05365B84, 4096
> time 0.888910, tid 3756 rx_Write succeeded bp 0x05365C14, 4096
> time 0.889000, tid 3756 rx_Write succeeded bp 0x05365CA4, 4096
> time 0.919260, tid 3756 rx_Write failed bp 0x05365D34, 0 != 4096
> time 0.919270, tid 3756 cm_Analyze connp 0x293BC060, code 0xffffffff
> time 0.919270, tid 3756 cm_Analyze: Rx Call Dead addr[130.240.42.225]
> forcedNew[no]
> time 0.919270, tid 3756 CALL StoreData FAILURE scp 0x03D89798, code
> 0x66543202
> time 0.919310, tid 3756 cm_ConnByServer returning conn 0x293BC060
> time 0.919340, tid 3756 CALL StartRXAFS_StoreData64 scp 0x03D89798,
> offset 0x0:00025000, length 0x15000
> time 0.919780, tid 3756 rx_Write succeeded bp 0x05365284, 4096
> time 0.919850, tid 3756 rx_Write succeeded bp 0x05365314, 4096
> time 0.919910, tid 3756 rx_Write succeeded bp 0x053653A4, 4096
> time 0.919950, tid 3756 rx_Write succeeded bp 0x05365434, 4096
> time 0.919990, tid 3756 rx_Write succeeded bp 0x053654C4, 4096
> time 0.920030, tid 3756 rx_Write succeeded bp 0x05365554, 4096
> time 0.920080, tid 3756 rx_Write succeeded bp 0x053655E4, 4096
> time 0.920120, tid 3756 rx_Write succeeded bp 0x05365674, 4096
> _______________________________________________
> OpenAFS-info mailing list
> OpenAFS-info@openafs.org
> https://lists.openafs.org/mailman/listinfo/openafs-info
> 

--------------ms050400070707060207090906
Content-Type: application/x-pkcs7-signature; name="smime.p7s"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="smime.p7s"
Content-Description: S/MIME Cryptographic Signature
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--------------ms050400070707060207090906--