Messages in this thread | | | From | Andris Pavenis <> | Subject | Re: SMBFS: recvmsg called within BH (was: Re: One more boobytrap needed for 2.2.15pre ?) | Date | Thu, 24 Feb 2000 09:46:24 +0200 |
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On Wed, 23 Feb 2000, Manfred Spraul wrote: > Andris, do you use smbfs?
Yes.
And there are also some problems with SMBFS (new with 2.2.X): After some time connection to shares (shared from WinNT 4.0) is lost. This problem appeared when I upgraded to 2.2.X. Therefore I used some periodic task (once per some minutes called 'df -t smbfs') to keep connection alive
Andris
> I found the first codepath that could cause your problems: > > Within net bottom half handler: > ip_rcv() > calls ip_local_deliver() > calls tcp_v4_rcv() > calls tcp_v4_do_rcv() > calls tcp_rcv_established() > calls sk->data_ready > > could be smb_data_callback() [in fs/smbfs/sock.c] > calls _recvfrom() > calls socket->ops->recvmsg() > could be inet_recvmsg > calls tcp_recvmsg !!!!! < this must not be called from an BH. > > Ok, it seems that smb_data_callback() is broken in 2.2.14. > It cannot read the data directly, it must wake the waiting thread up, > and the thread must call recvmsg() at process level. > > -- > Manfred
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