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    SubjectRe: 2.6.20-mm2
    Date
    On Monday, 19 February 2007 01:28, Andrew Morton wrote:
    > On Mon, 19 Feb 2007 00:32:08 +0100 "Rafael J. Wysocki" <rjw@sisk.pl> wrote:
    >
    > > On Sunday, 18 February 2007 06:51, Andrew Morton wrote:
    > > >
    > > > Temporarily at
    > > >
    > > > http://userweb.kernel.org/~akpm/2.6.20-mm2/
    > > >
    > > > Will appear later at
    > > >
    > > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.20/2.6.20-mm2/
    > >
    > > One more thing:
    > >
    > > rtc_cmos 00:02: rtc core: registered rtc_cmos as rtc0
    > > Unable to handle kernel NULL pointer dereference at 0000000000000030 RIP:
    > > [<ffffffff804032c3>] rtc_sysfs_remove_device+0x23/0x50
    > > PGD 5e10c067 PUD 5dd58067 PMD 0
    > > Oops: 0000 [1] PREEMPT
    > > last sysfs file: /devices/pnp0/00:04/id
    > > CPU 0
    > > Modules linked in: cdrom rtc_cmos snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm snd_timer snd soundcore i2c_nforce2 i2c_core snd_page_alloc ohci_hcd ehci_hcd evdev parport_pc lp parport fan thermal processor
    > > Pid: 2960, comm: modprobe Not tainted 2.6.20-mm2 #1
    > > RIP: 0010:[<ffffffff804032c3>] [<ffffffff804032c3>] rtc_sysfs_remove_device+0x23/0x50
    > > RSP: 0018:ffff81005e3f9c18 EFLAGS: 00010202
    > > RAX: 0000000000000000 RBX: ffff81005dabeea0 RCX: 0000000000000000
    > > RDX: ffffffff804032a0 RSI: ffffffff805cfba0 RDI: ffff81005dabeea0
    > > RBP: ffff81005e3f9c28 R08: 0000000000000001 R09: 0000000000000000
    > > R10: 2222222222222222 R11: 2222222222222222 R12: ffff81005dabeea0
    > > R13: ffff810002890258 R14: ffff810002890268 R15: ffff810002890098
    > > FS: 00002ac610b906f0(0000) GS:ffffffff805db000(0000) knlGS:0000000000000000
    > > CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
    > > CR2: 0000000000000030 CR3: 000000005e16d000 CR4: 00000000000006e0
    > > Process modprobe (pid: 2960, threadinfo ffff81005e3f8000, task ffff81005e6a7140)
    > > Stack: ffff81005fe244e8 ffffffff805cfba0 ffff81005e3f9c68 ffffffff803c5786
    > > 0000000000000000 ffff81005dabeea0 ffff81005dabf008 0000000000000008
    > > ffff81005fe244e8 0000000000000008 ffff81005e3f9c88 ffffffff803c5891
    > > Call Trace:
    > > [<ffffffff803c5786>] class_device_del+0x86/0x180
    > > [<ffffffff803c5891>] class_device_unregister+0x11/0x20
    > > [<ffffffff8040280e>] rtc_device_unregister+0x3e/0x50
    > > [<ffffffff880cd789>] :rtc_cmos:cmos_pnp_probe+0x219/0x240
    > > [<ffffffff803988a1>] pnp_device_probe+0xa1/0xe0
    > > [<ffffffff803c4d20>] __driver_attach+0x0/0xa0
    > > [<ffffffff803c4bb5>] driver_probe_device+0x115/0x1c0
    > > [<ffffffff803c4d20>] __driver_attach+0x0/0xa0
    > > [<ffffffff803c4d83>] __driver_attach+0x63/0xa0
    > > [<ffffffff803c3e1f>] bus_for_each_dev+0x4f/0x80
    > > [<ffffffff803c497c>] driver_attach+0x1c/0x20
    > > [<ffffffff803c4233>] bus_add_driver+0x83/0x1d0
    > > [<ffffffff803c50d9>] driver_register+0x89/0x90
    > > [<ffffffff803985cc>] pnp_register_driver+0x1c/0x20
    > > [<ffffffff880d1010>] :rtc_cmos:cmos_init+0x10/0x12
    > > [<ffffffff8025199b>] sys_init_module+0x158b/0x16f0
    > > [<ffffffff802d09da>] dnotify_parent+0x7a/0x90
    > > [<ffffffff80268b80>] file_read_actor+0x0/0x170
    > > [<ffffffff80209a0e>] system_call+0x7e/0x83
    > >
    > >
    > > Code: 48 83 78 30 00 74 0c 48 c7 c6 60 e1 4a 80 e8 aa 23 fc ff 48
    > > RIP [<ffffffff804032c3>] rtc_sysfs_remove_device+0x23/0x50
    > > RSP <ffff81005e3f9c18>
    > > CR2: 0000000000000030
    >
    > How did you provoke that? modprobe rtc-cmos?

    I've just booted OpenSUSE 10.2 with this kernel.
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