On Tue, Jul 15, 2008 at 5:23 PM, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> wrote: > > (switched to email. Please respond via emailed reply-to-all, not via the > bugzilla web interface). > > On Tue, 15 Jul 2008 02:15:53 -0700 (PDT) bugme-daemon@xxxxxxxxxxxxxxxxxxx wrote: > >> http://bugzilla.kernel.org/show_bug.cgi?id=11088 >> >> Summary: Warning about NULL pointer dereference when attaching >> usb hd >> Product: Drivers >> Version: 2.5 >> KernelVersion: 2.6.26 >> Platform: All >> OS/Version: Linux >> Tree: Mainline >> Status: NEW >> Severity: normal >> Priority: P1 >> Component: USB >> AssignedTo: greg@xxxxxxxxx >> ReportedBy: hanno@xxxxxxxxxx >> >> >> I got this when attaching an external usb hd. Kernel is 2.6.26, I'll attach >> config. >> >> sd 0:0:0:0: [sda] Attached SCSI disk >> sd 0:0:0:0: Attached scsi generic sg0 type 0 >> BUG: unable to handle kernel NULL pointer dereference at 00000004 >> IP: [<f98c067b>] :usb_storage:slave_alloc+0x2b/0x60 >> *pde = 00000000 >> Oops: 0000 [#1] >> Modules linked in: radeon drm usb_storage pcmcia nsc_ircc irda parport_pc >> ehci_hcd uhci_hcd parport usbcore yenta_socket rsrc_nonstatic firewire_ohci >> pcmcia_core 8139cp firewire_core crc_itu_t ipw2200 8139too i2c_i801 >> >> Pid: 1354, comm: usb-stor-scan Not tainted (2.6.26 #1) >> EIP: 0060:[<f98c067b>] EFLAGS: 00010202 CPU: 0 >> EIP is at slave_alloc+0x2b/0x60 [usb_storage] >> EAX: 00000000 EBX: f6c6070c ECX: 00000202 EDX: f6cb8c00 >> ESI: f0403400 EDI: f6c10c14 EBP: f6c60400 ESP: f6d9bddc >> DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 >> Process usb-stor-scan (pid: 1354, ti=f6d9a000 task=f7c534c0 task.ti=f6d9a000) >> Stack: f0403400 f6c10c00 c02f0c73 f60fc938 00000000 00000000 f6c60400 00000000 >> 00000000 00000000 c02f1061 c04cca30 c049cb92 f60fc938 c04bebfe f6c643c8 >> f6c643d0 f6c643e0 00000000 00000000 c04befed f6ea0288 00000000 f6c10c00 >> Call Trace: >> [<c02f0c73>] scsi_alloc_sdev+0x143/0x1b0 >> [<c02f1061>] scsi_probe_and_add_lun+0x261/0x9a0 >> [<c02f1c03>] __scsi_scan_target+0x2e3/0x610 >> [<c0124f40>] process_timeout+0x0/0x10 >> [<c0424347>] wait_for_common+0x77/0x110 >> [<c0118ab0>] default_wake_function+0x0/0x10 >> [<c02f1f87>] scsi_scan_channel+0x57/0xa0 >> [<c02f2077>] scsi_scan_host_selected+0xa7/0x120 >> [<c02f215b>] do_scsi_scan_host+0x6b/0x70 >> [<f98c2625>] usb_stor_scan_thread+0x145/0x190 [usb_storage] >> [<c012e6e0>] autoremove_wake_function+0x0/0x50 >> [<f98c24e0>] usb_stor_scan_thread+0x0/0x190 [usb_storage] >> [<c012e2d7>] kthread+0x37/0x70 >> [<c012e2a0>] kthread+0x0/0x70 >> [<c0103323>] kernel_thread_helper+0x7/0x14 >> ======================= >> Code: 83 ec 08 89 74 24 04 89 c6 89 1c 24 8b 18 c6 40 57 24 81 c3 0c 03 00 00 >> 8b 43 20 8b 53 0c c1 e8 0f 83 e0 0f 8b 84 82 8c 01 00 00 <0f> b7 50 04 8b 46 04 >> 4a e8 b8 aa 96 c6 80 7b 3c 04 75 0e 8b 46 >> EIP: [<f98c067b>] slave_alloc+0x2b/0x60 [usb_storage] SS:ESP 0068:f6d9bddc >> ---[ end trace f3a5e784c4c8fadf ]--- > > -- > 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 > Hi, Hanno, 1. Can this bug be reproduced? 2. Can you try it with older kernel?such as 2.6.25 or some other versions prior to 2.6.26. Thanks Jason Xiao -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
