I hit this on 3.13-rc7 while transferring data over an ASIX88179 USB 3 to gigabit ethernet adapter, transferring data at only 4MB/s. What other debug options apart from SG debug would be useful here? Thanks, Daniel On 30 December 2013 23:26, Daniel J Blueman <daniel@xxxxxxxxx> wrote: > When rsyncing data from a USB3 disk over a USB3-ethernet adapter to > local server on 3.13-rc5 [1], I ran into fatal page-not-readable fault > [2]. > > Full dmesg (before the disk was plugged in) is at > http://quora.org/2013/dmesg.txt > > I can test patches on the weekend if needed. > > Thanks and Happy New Year! > Daniel > > --- [1] > > http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.13-rc5-trusty/linux-image-3.13.0-031300rc5-generic_3.13.0-031300rc5.201312221635_amd64.deb > > --- [2] (apologies for any typos due to OCR) > > BUG: unable to handle kernel NULL pointer dereference at (null) > IP: [<ffffffff813979f2>] sg_next+0x2/0x20 > PGD 2354c5067 PUD 1b25b1067 PMD 0 > Oops: 0000 [#1] SMP > Modules linked in: usb_storage dm_crypt autofs4 snd_hda_codec_hdmi > parport_pc ppdev tusb bluetooth snd_page_alloc ax88179_178e usbnet > snd_seq_midi crctlOdif_pcImul vldepdev snd_sedird _ich apple_gmux > apple_bl mac_hid nIs_iS08859_1 lp parport btrfs xor raid6_pq libcrc32c > hid_generic > CPU: 0 PID: 6395 Comm: pool Not tainted 3.13.0-031300rc5-generic #201312221635 > Hardware name: Apple Inc. MacBookFro10,1/Mac-C3EC7CD22292981F, BIOS > M8P101.632.00EE.I > task: ffff880178ec6000 ti: ffff880061914000 task.ti: ffff880061914000 > RIP: 0010:[<ffffffff813979f2>] kffffffff813979f2A sg_next+0x2/0x20 > RSP: 0018:ffff880061915740 EFLAGS: 00010046 > RAX: 0000000000000000 RBX: ff1f880036255000 RCX: 0000000000000003 > RDX: 0000000000000003 RSI: ffff880036255000 RDI: 0000000000000000 > R6P: ffff880061915798 R08: 0000000000000201 R09: 0000000000003578 > R10: ffffffff8163fa52 R11: 00000000000002c0 R12: ffff88025e5dfc00 > R13: ffff8802634f2098 R14: 0000000000000001 R15: ffffffff81c26c40 > FS: 00007fc7c4b37700(0000) OS:fff188026f200000(0000) knIGS:0000000000000000 > CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > CR2: 0000000000000000 CR3: 00000001e8b12000 CR4: 00000000001407f0 > Stack: > ffffffff8156d8fe 0000000000000000 ffff880100000003 ffff88011c144e40 > 00000003245ded00 ffff8801245ded00 ffff880036255000 ffff88025e5dfc00 > 0000000000000020 0000000000000200 1fff88007a3e59fc ffff8800619157d8 > Call Trace: > [<ffffffff8156d8fe>] ? usb_hcd_map_urb_for_dma+0x30e/0x4b0 > [<ffffffff8156e535>] usb_hcd_submit_urb+0x125/0x1b0 > [<ffffffff8156f93f>] usb_submit_urb.part.7+0x15f/0x430 > [<ffffffff814c79a9>] ? __pm_runtime_resume+0x69/0x90 > [<ffffffff8156fc45>1 usb_submit_urb+0x35/0x80 > [<ffffffffa05c8b55>] usbnet_stert_xmit+0x245/0x640 [usbnet] > [<ffffffff8165248d>] dev_hard_start_xmit+0x54d/0x5f0 > [<ffffffff8165248d>] ? dev_hard_start_xmit+0x54d/0x5f0 > [<ffffffff81671710>] sch_direct_xmit+0x100/0x1d0 > [<ffffffff816526a2>] dev_queue_xmit+0x172/0x4b0 > [<ffffffff8168c8b0>] ip_finish_output+0x224/0x3f0 > [<ffffffffB168d3b8>] ip_output+0x58/0x90 > [<ffffffff8168cb29>] 1p_local_out+0x29/0x30 > [<ffffffff8168cc70>] ip_queue_xmit+0x140/0x3d0 > [<ffffffff816a495a>] tcp_transmit_skb+0x3ba/0x620 > [<ffffffff816a55cc>] tcp_write_xmit+0xlic/0x470 > [<ffffffff81685992>] __tcp_push_pend1ng_frames+0x32/0xd0 > [<ffffffff816968af>] tcp_sendmsg+0xl2f/0xd70 > [<ffffffff816c0961>] inet_sendmsg+0x61/0xb0 > [<ffffffff8108f460>] ? __remove_hrtimer+0x60/0xc0 > [<ffffffff816374a2>] do_sock_write.isra.16+0xc2/0xe0 > [<ffffffff81637508>] sock_aio_write+0x48/0x60 > [<ffffffff8108f8c2>] ? hrtimer_cance1+0x22/0x30 > [<ffffffff811c38f8>] do_sync_readv_writev+0x48/0x80 > [<ffffffff811c4d18>] do_readv_writev+0xc8/0x2a0 > [<ffffffff8109fc6d>] ? vtime_account_user+0x5d/0x70 > [<ffffffffelic4f27>] vfs_writev+0x37/0x50 > [<ffffffff811c50a2>] SyS_writev+0x52/0xc0 > [<ffffffff8176c73f>] tracesys+0xe1/0xe6 > Code: 5c 41 5d 41 5e 41 5f 5d c3 55 48 c7 c2 00 7e 39 81 be 80 00 00 > 00 4S 89 eS e8 6b > RIP [<ffffffffe13379f2>] sg_next+0x2/0x20 > RSP <ffff880061915740> > CR2: 0000000000000000 > Kernel panic - not syncing: Fatal exception in interrupt > drm_kms_helper: panic occurred, switching back to text console -- Daniel J Blueman -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
