Hi Peter, Do you have the I2C configuration activated ? I have this error when I add the driver in a kernel with no I2C activated
-----Original Message----- From: Kent Yoder [mailto:k...@linux.vnet.ibm.com] Sent: 08 January, 2013 18:21 To: Mathias LEBLANC Cc: Peter Hüwe; Jean-Luc BLANC; sir...@jasper.es; linux-kernel@vger.kernel.org; tpmdd-de...@lists.sourceforge.net; Kent Yoder Subject: Re: [tpmdd-devel] [PATCH 1/1] TPM: STMicroelectronics ST33 I2C KERNEL 3.x.x OOPS! On Sat, Dec 08, 2012 at 05:00:26AM +0100, Peter Hüwe wrote: > Hi, > > since I don't have a tpm I simply tried out whether the handling > without a tpm is correct, which it unfortunately isn't as my kernel oopses. > > Steps to reproduce: > # insmod > /data/data-old/linux-2.6/drivers/char/tpm/tpm_i2c_stm_st33.ko > # echo st33zp24_i2c 0x20 /sys/bus/i2c/devices/i2c-1/new_device Mathias, can you address this oops? We can't merge this driver until its resolved. Kent > > BUG: unable to handle kernel NULL pointer dereference at > 0000000000000018 > IP: [<ffffffffa02ff4ad>] tpm_st33_i2c_probe+0x87/0x21a > [tpm_i2c_stm_st33] PGD 3dcbbe067 PUD 3e994b067 PMD 0 > Oops: 0002 [#1] PREEMPT SMP > Modules linked in: tpm_i2c_stm_st33(O) tpm(O) tpm_bios(O) w83627ehf > hwmon_vid > ipv6 snd_hda_codec_hdmi snd_hda_codec_realtek joydev usbhid coretemp > kvm_intel kvm ghash_clmulni_intel sg pcspkr snd_hda_intel > snd_hda_codec snd_hwdep snd_pcm snd_timer snd i2c_i801 snd_page_alloc mei > [last unloaded: > tpm_i2c_stm_st33] > CPU 2 > Pid: 4454, comm: bash Tainted: G W O 3.6.9 #14 To Be Filled By O.E.M. > To Be Filled By O.E.M./Z77 Pro4 > RIP: 0010:[<ffffffffa02ff4ad>] [<ffffffffa02ff4ad>] > tpm_st33_i2c_probe+0x87/0x21a [tpm_i2c_stm_st33] > RSP: 0018:ffff8803dcb87c18 EFLAGS: 00010286 > RAX: ffff8803eb0d1800 RBX: ffff8803ff710400 RCX: 0000000000000000 > RDX: 0000000000000000 RSI: ffff88041d0026d0 RDI: 0000000000000001 > RBP: ffff8803dcb87c38 R08: 000000000000000b R09: 0000000000000001 > R10: 0000000000000001 R11: ffff8803ff710400 R12: 0000000000000000 > R13: ffff8803ff710c00 R14: ffff8803ff710c28 R15: ffff8803ff710c04 > FS: 00007f520567a700(0000) GS:ffff88041f280000(0000) > knlGS:0000000000000000 > CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > CR2: 0000000000000018 CR3: 00000003e48b0000 CR4: 00000000001407e0 > DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 > Process bash (pid: 4454, threadinfo ffff8803dcb86000, task > ffff8803c87226c0) > Stack: > ffff8803ff710c28 ffffffffa02ffb80 ffffffffa02ff426 ffff8803ff710c00 > ffff8803dcb87c78 ffffffff8134079a ffffffffa02ffe00 ffff8803ff710c28 > 00000000ffffffed ffffffffa02ffe00 0000000000000000 ffff88040ebe4460 > Call Trace: > [<ffffffffa02ff426>] ? request_locality+0xc2/0xc2 [tpm_i2c_stm_st33] > [<ffffffff8134079a>] i2c_device_probe+0xa4/0xcd [<ffffffff812b9c24>] > driver_probe_device+0xa9/0x1bf [<ffffffff812b9de9>] > __device_attach+0x35/0x3a [<ffffffff812b9db4>] ? > __driver_attach+0x7a/0x7a [<ffffffff812b84d7>] > bus_for_each_drv+0x51/0x87 [<ffffffff812b9b3f>] > device_attach+0x6e/0x8e [<ffffffff812b91b0>] > bus_probe_device+0x2d/0x98 [<ffffffff812b7ace>] > device_add+0x3e1/0x548 [<ffffffff812bf2b3>] ? > device_pm_init+0x60/0x84 [<ffffffff812b7c4c>] > device_register+0x17/0x1b [<ffffffff813410c4>] > i2c_new_device+0x12b/0x175 [<ffffffff813411e4>] > i2c_sysfs_new_device+0xd6/0x15a [<ffffffff812b6394>] > dev_attr_store+0x1b/0x1d [<ffffffff81136f39>] > sysfs_write_file+0xef/0x12b [<ffffffff810e4ac3>] vfs_write+0xa9/0x119 > [<ffffffff810e4cfa>] sys_write+0x45/0x6c [<ffffffff814005a2>] > system_call_fastpath+0x16/0x1b > Code: ff 48 c7 c6 a7 fa 2f a0 48 85 c0 48 89 c3 74 cd 48 8b 3d d7 d0 > 2a e1 be > d0 00 00 00 4d 8b a5 c8 00 00 00 e8 3b 32 de e0 48 85 c0 <49> 89 44 24 > 18 0f > 84 5a 01 00 00 48 8b 3d b1 d0 2a e1 be d0 00 RIP [<ffffffffa02ff4ad>] > tpm_st33_i2c_probe+0x87/0x21a [tpm_i2c_stm_st33] RSP > <ffff8803dcb87c18> > CR2: 0000000000000018 > ---[ end trace ddc5676681e8ed72 ]--- > > > > > Thanks, > Peter > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
