[openib-general] libsdp without zcopy also have problems

[Xavier Grave]

When it runs I get very good results about 228 MB/s
with the same sample program without sdp with ipoib i get about 130 MB/s

But if I try to connect to a non running server I get this :
 iommu_free: invalid entry
        entry     = 0x0
        dma_addr  = 0x0
        Table     = 0xc0000000edf34480
        bus#      = 0xd9
        size      = 0x10000
        startOff  = 0x20000
        index     = 0x3000003
Badness in __iommu_free at arch/powerpc/kernel/iommu.c:208
Call Trace:
[C0000000EBF831C0] [C00000000000E6A0] .show_stack+0x6c/0x1a0
(unreliable)
[C0000000EBF83260] [C0000000000206A4] .program_check_exception
+0x168/0x518
[C0000000EBF83300] [C000000000004348] program_check_common+0xc8/0x100
--- Exception: 700 at .__iommu_free+0xe0/0x178
    LR = .__iommu_free+0xd8/0x178
[C0000000EBF83690] [C00000000002259C] .iommu_free+0x50/0xb4
[C0000000EBF83730] [C00000000002738C] .pci_iommu_unmap_single+0x40/0x54
[C0000000EBF837A0] [C000000000021E68] .dma_unmap_single+0x54/0x70
[C0000000EBF83810] [C00000000024A31C] .sdp_buff_q_clear_unmap+0x40/0xf4
[C0000000EBF838B0] [C0000000002518F8] .sdp_conn_put+0x154/0x228
[C0000000EBF83940] [C00000000024CFE0] .sdp_inet_release+0x36c/0x398
[C0000000EBF83A10] [C00000000025A214] .sock_release+0x54/0x148
[C0000000EBF83AA0] [C00000000025AA50] .sock_close+0x44/0x60
[C0000000EBF83B20] [C0000000000B106C] .__fput+0xf8/0x254
[C0000000EBF83BC0] [C0000000000AE320] .filp_close+0xac/0xd4
[C0000000EBF83C50] [C000000000051FB4] .put_files_struct+0xbc/0x148
[C0000000EBF83CF0] [C0000000000538C4] .do_exit+0x23c/0x980
[C0000000EBF83DA0] [C0000000000540E4] .sys_exit_group+0x0/0x8
[C0000000EBF83E30] [C0000000000086F8] syscall_exit+0x0/0x40

I have time to test this if somebody wants me to do so.

xavier