[Bug 1230] New: oops at boot in rtc_dev_open()

[bugzilla-daemon at bugzilla.openmoko.org]

http://bugzilla.openmoko.org/cgi-bin/bugzilla/show_bug.cgi?id=1230

           Summary: oops at boot in rtc_dev_open()
           Product: OpenMoko
           Version: unspecified
          Platform: Neo1973
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: kernel
        AssignedTo: openmoko-kernel at lists.openmoko.org
        ReportedBy: dodji at openedhand.com
                CC: buglog at lists.openmoko.org


compile a 2.6.24 kernel with patches from
http://svn.openmoko.org/branches/src/target/kernel/2.6.24.x/patches/, svn
revision   r4055. Boot it on a gta02 v2 or v4 hardware.

You then get the following oops:

Empty flash at 0x06abb930 ends at 0x06abc000

VFS: Mounted root (jffs2 filesystem).

Freeing init memory: 124K

Unable to handle kernel paging request at virtual address 7ffff0a5

pgd = c710c000

[7ffff0a5] *pgd=00000000

Internal error: Oops: 5 [#1] PREEMPT

Modules linked in:

CPU: 0    Not tainted  (2.6.24 #2)

PC is at 0xc0746fe0

LR is at rtc_dev_open+0x64/0xdc

pc : [<c0746fe0>]    lr : [<c01d7b18>]    psr: a0000013

sp : c7121e60  ip : c0744ea4  fp : c7121e7c

r10: c7858b60  r9 : c7120000  r8 : c7c1f5a0

r7 : 8744f439  r6 : 40017dfb  r5 : c7d25e00  r4 : c7d25f3c

r3 : c0744f44  r2 : 00000001  r1 : 80000013  r0 : c7c94c28

Flags: NzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user

Control: c000717f  Table: 3710c000  DAC: 00000015

Process hwclock (pid: 1037, stack limit = 0xc7120268)

Stack: (0xc7121e60 to 0xc7122000)

1e60: c0289bc0 00000000 c7d25f3c 00000000 c7121eac c7121e80 c00963f0 c01d7ac4

1e80: c7121ea4 00000000 c7121eac c7c1f5a0 00000000 c7ffe53c c0096210 c7c0dc20

1ea0: c7121ed4 c7121eb0 c009110c c0096220 c7c1f5a0 c7121f00 ffffff9c 00000003

1ec0: c7c75000 00000000 c7121ef4 c7121ed8 c00912a0 c0090fdc 00000000 c7c75000

1ee0: c7120000 00020000 c7121f64 c7121ef8 c00912f8 c009127c c7121f00 c002efc4

1f00: c7858b60 c7c0dc20 c7121f34 80000013 00000000 00000101 00000001 00000000

1f20: 00000000 c7ffe354 c71a8268 c71a8260 c7121f64 c7121f40 c0090f94 c003effc

1f40: 00020000 00020001 00000000 c7c1f5a0 00020000 00000000 c7121f94 c7121f68

1f60: c0091358 c00912c8 00000000 00000000 00000000 00000000 000abb88 00000008

1f80: 00000005 c00280e8 c7121fa4 c7121f98 c0091420 c0091310 00000000 c7121fa8

1fa0: c0027f40 c009140c 00000000 000abb88 000abb88 00020000 00000000 00000000

1fc0: 00000000 000abb88 00000008 00000005 00000000 00000000 401fc000 00000000

1fe0: 40191710 bea2fc20 0005f8a8 40191760 60000010 000abb88 2fda3154 000006e3

Backtrace:

[<c01d7ab4>] (rtc_dev_open+0x0/0xdc) from [<c00963f0>] (chrdev_open+0x1e0/0x204)

 r6:00000000 r5:c7d25f3c r4:00000000

[<c0096210>] (chrdev_open+0x0/0x204) from [<c009110c>] (__dentry_open+0x140/0x228)

 r8:c7c0dc20 r7:c0096210 r6:c7ffe53c r5:00000000 r4:c7c1f5a0

[<c0090fcc>] (__dentry_open+0x0/0x228) from [<c00912a0>]
(nameidata_to_filp+0x34/0x4c)

[<c009126c>] (nameidata_to_filp+0x0/0x4c) from [<c00912f8>] (do_filp_open+0x40/0x48)

 r4:00020000

[<c00912b8>] (do_filp_open+0x0/0x48) from [<c0091358>] (do_sys_open+0x58/0xe8)

 r5:00000000 r4:00020000

[<c0091300>] (do_sys_open+0x0/0xe8) from [<c0091420>] (sys_open+0x24/0x28)

 r8:c00280e8 r7:00000005 r6:00000008 r5:000abb88 r4:00000000

[<c00913fc>] (sys_open+0x0/0x28) from [<c0027f40>] (ret_fast_syscall+0x0/0x2c)

Code: 00000000 00000000 00000000 00000000 (75716f6e)

---[ end trace 9b77521852fdd214 ]---

JFFS2 notice: (1052) check_node_data: wrong data CRC in data node at 0x06abb510:
read 0x598c3dfd, calculated 0xcef2d550.



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