<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
<HTML>
<HEAD>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1">
<META NAME="Generator" CONTENT="MS Exchange Server version 5.5.2654.45">
<TITLE>executing the SRQ pingpong example </TITLE>
</HEAD>
<BODY>
<P><FONT FACE="Times New Roman">svn rev.: 3470</FONT>
<BR><FONT FACE="Times New Roman">kernel: 2.6.9-5.EL (AS4)</FONT>
<BR><FONT FACE="Times New Roman">HCA: Mellanox HCA 25204</FONT>
</P>
<P><FONT FACE="Times New Roman">here is the command line:<BR>
/usr/local/bin/ibv_srq_pingpong --port=19872 --ib-dev=mthca0 --ib-port=1 --num-qp=255<BR>
<BR>
backtrace:<BR>
Sep 19 09:37:48 swlab153 kernel: Unable to handle kernel NULL pointer dereference at 0000000000000030 RIP:<BR>
Sep 19 09:37:48 swlab153 kernel: <ffffffffa0168a90>{:ib_mthca:get_wqe+48}<BR>
Sep 19 09:37:48 swlab153 kernel: PML4 143fe3067 PGD 13fe4d067 PMD 0<BR>
Sep 19 09:37:48 swlab153 kernel: Oops: 0000 [1] SMP<BR>
Sep 19 09:37:48 swlab153 kernel: CPU 0<BR>
Sep 19 09:37:48 swlab153 kernel: Modules linked in: ib_ipoib(U) ib_sa(U) ib_uverbs(U) ib_umad(U) ib_mthca(U) ib_mad(U) ib_core(U) nfsd expor<BR>
tfs md5 ipv6 parport_pc lp parport autofs4 i2c_dev i2c_core nfs lockd mst_pciconf(U) mst_pci(U) sunrpc ds yenta_socket pcmcia_core dm_mod bu<BR>
tton battery ac uhci_hcd ehci_hcd hw_random e1000 floppy ext3 jbd ata_piix libata aic79xx sd_mod scsi_mod<BR>
Sep 19 09:37:48 swlab153 kernel: Pid: 1659, comm: ibv_srq_pingpon Not tainted 2.6.9-5.ELsmp<BR>
Sep 19 09:37:48 swlab153 kernel: RIP: 0010:[<ffffffffa0168a90>] <ffffffffa0168a90>{:ib_mthca:get_wqe+48}<BR>
Sep 19 09:37:48 swlab153 kernel: RSP: 0018:0000010142e41da0 EFLAGS: 00010206<BR>
Sep 19 09:37:48 swlab153 kernel: RAX: 0000000000000030 RBX: 000001015c8fa7d8 RCX: 0000000000000005<BR>
Sep 19 09:37:48 swlab153 kernel: RDX: 0000000000000fe0 RSI: 00000000000001ff RDI: 0000000000000000<BR>
Sep 19 09:37:48 swlab153 kernel: RBP: 000001015c556580 R08: 0000000000000000 R09: 0000000000000002<BR>
Sep 19 09:37:48 swlab153 kernel: R10: 0000000000000000 R11: 0000000000000002 R12: 000001015c8fa000<BR>
Sep 19 09:37:48 swlab153 kernel: R13: 000001015f5d28c0 R14: 000001015b157400 R15: 0000010142e41e48<BR>
Sep 19 09:37:48 swlab153 kernel: FS: 0000002a95674fe0(0000) GS:ffffffff804bf300(0000) knlGS:0000000000000000<BR>
Sep 19 09:37:48 swlab153 kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b<BR>
Sep 19 09:37:48 swlab153 kernel: CR2: 0000000000000030 CR3: 0000000000101000 CR4: 00000000000006e0<BR>
Sep 19 09:37:48 swlab153 kernel: Process ibv_srq_pingpon (pid: 1659, threadinfo 0000010142e40000, task 0000010140c96030)<BR>
Sep 19 09:37:48 swlab153 kernel: Stack: ffffffffa01690d3 0000000000518000 0000000000518000 0000000000000000<BR>
Sep 19 09:37:48 swlab153 kernel: 000001015c556580 000001015b157400 000001015b15f6c0 0000010142e41e68<BR>
Sep 19 09:37:48 swlab153 kernel: ffffffffa0166668 00007ffe0c002400<BR>
Sep 19 09:37:48 swlab153 kernel: Call Trace:<ffffffffa01690d3>{:ib_mthca:mthca_alloc_srq+1545}<BR>
Sep 19 09:37:48 swlab153 kernel: <ffffffffa0166668>{:ib_mthca:mthca_create_srq+185}<BR>
Sep 19 09:37:48 swlab153 kernel: <ffffffffa00ebf0c>{:ib_uverbs:ib_uverbs_create_srq+349}<BR>
Sep 19 09:37:48 swlab153 kernel: <ffffffffa00e952c>{:ib_uverbs:ib_uverbs_srq_event_handler+0}<BR>
Sep 19 09:37:48 swlab153 kernel: <ffffffffa00e96da>{:ib_uverbs:ib_uverbs_write+139}<BR>
Sep 19 09:37:48 swlab153 kernel: <ffffffff80172088>{vfs_write+207} <ffffffff80172170>{sys_write+69}<BR>
Sep 19 09:37:48 swlab153 kernel: <ffffffff8010ffd2>{system_call+126}<BR>
Sep 19 09:37:48 swlab153 kernel:<BR>
Sep 19 09:37:48 swlab153 kernel: Code: 48 03 14 38 48 89 d0 c3 53 48 89 f3 44 8b 4e 70 8b 43 48 48<BR>
Sep 19 09:37:48 swlab153 kernel: RIP <ffffffffa0168a90>{:ib_mthca:get_wqe+48} RSP <0000010142e41da0><BR>
Sep 19 09:37:48 swlab153 kernel: CR2: 0000000000000030<BR>
</FONT>
<BR><FONT SIZE=2 FACE="Arial">did anyone see this oops too?</FONT>
</P>
<P><B><I><FONT COLOR="#008080" SIZE=6 FACE="Script">Dotan Barak</FONT></I></B>
<BR><FONT FACE="Times New Roman">Software Verification Engineer</FONT>
<BR><FONT FACE="Times New Roman">Mellanox Technologies LTD</FONT>
<BR><FONT FACE="Times New Roman">Tel: +972-4-9097200 Ext: 231 Fax: +972-4-9593245</FONT>
<BR><FONT FACE="Times New Roman">P.O. Box 86 Yokneam 20692 ISRAEL.</FONT>
<BR><FONT FACE="Times New Roman">Home: +972-77-8841095 Cell: 0</FONT><FONT SIZE=2 FACE="Arial">52-4222383</FONT>
</P>
<P><FONT COLOR="#008080" SIZE=2 FACE="Arial">[ May the fork be with you ]</FONT>
</P>
</BODY>
</HTML>