DRBD отваливается при проверке

[25658.263180] block drbd0: Starting Online Verify from sector 0
[31424.442758] d-con VM_STORAGE2_1: [drbd_w_VM_STORA/3779] sock_sendmsg time expired, ko = 6
[31514.609426] d-con VM_STORAGE2_1: [drbd_w_VM_STORA/3779] sock_sendmsg time expired, ko = 6
[36769.957660] d-con VM_STORAGE2_1: [drbd_w_VM_STORA/3779] sock_sendmsg time expired, ko = 6
[36779.938477] d-con VM_STORAGE2_1: [drbd_w_VM_STORA/3779] sock_sendmsg time expired, ko = 5
[38429.218483] d-con VM_STORAGE2_1: [drbd_w_VM_STORA/3779] sock_sendmsg time expired, ko = 6
[38439.199298] d-con VM_STORAGE2_1: [drbd_w_VM_STORA/3779] sock_sendmsg time expired, ko = 5
[38449.180123] d-con VM_STORAGE2_1: [drbd_w_VM_STORA/3779] sock_sendmsg time expired, ko = 4
[38459.160945] d-con VM_STORAGE2_1: [drbd_w_VM_STORA/3779] sock_sendmsg time expired, ko = 3
[38469.141767] d-con VM_STORAGE2_1: [drbd_w_VM_STORA/3779] sock_sendmsg time expired, ko = 2
[38478.943765] d-con VM_STORAGE2_1: sock_sendmsg returned -104
[38478.943804] block drbd0: Online Verify reached sector 2773202184
[38478.943842] d-con VM_STORAGE2_1: peer( Primary -> Unknown ) conn( VerifyS -> BrokenPipe ) pdsk( UpToDate -> DUnknown ) 
[38478.943897] block drbd0: drbd_alloc_pages interrupted!
[38478.943929] d-con VM_STORAGE2_1: error receiving OVReply, e: -12 l: 20!
[38478.947573] d-con VM_STORAGE2_1: meta connection shut down by peer.
[38478.947605] d-con VM_STORAGE2_1: asender terminated
[38478.947633] d-con VM_STORAGE2_1: Terminating drbd_a_VM_STORA
[38478.948676] d-con VM_STORAGE2_1: Connection closed
[38478.948716] d-con VM_STORAGE2_1: conn( BrokenPipe -> Unconnected ) 
[38478.948746] d-con VM_STORAGE2_1: receiver terminated

global {
    usage-count no;
}

common {
    protocol B;

    handlers {
    }

    startup {
        wfc-timeout 10;
    }

    disk {
        c-plan-ahead 0;
        al-extents 6433;
        resync-rate 400M;
        disk-barrier no;
        disk-flushes no;
        disk-drain yes;
    }

    net {
        sndbuf-size 1024k;
        rcvbuf-size 1024k;

        max-buffers 8192; # x PAGE_SIZE
        max-epoch-size 8192; # x PAGE_SIZE
        unplug-watermark 8192;

        timeout 100;
        ping-int 15;
        ping-timeout 60; # x 0.1sec
        connect-int 15;
        timeout 50; # x 0.1sec

        verify-alg sha1;
        csums-alg sha1;
        data-integrity-alg crc32c;
        cram-hmac-alg sha1;
        shared-secret "xxx";
        use-rle;
    }
}