From: Stefan Koch <stefan.koch10@gmail.com>
To: linux-fbdev@vger.kernel.org
Subject: Re: i.MX 257 ARM-CPU: framebuffer error "division by zero"
Date: Wed, 07 Nov 2012 20:33:53 +0000 [thread overview]
Message-ID: <509AC5B1.5040301@gmail.com> (raw)
In-Reply-To: <509A6964.5090305@gmail.com>
The error snipped in first post is not from the beginning it's from the end.
This is from the beginning.
And there is named "imxfb", too.
For this error "video=imxfb:SVGA-16@60" is set in kernel command line:
The full messages are here: http://paste.debian.net/hidden/3d16ba27/
[<80246f78>] (register_framebuffer+0x17c/0x230) from [<80586ab8>]
(imxfb_probe+0x3c8/0x5a8)
[<80586ab8>] (imxfb_probe+0x3c8/0x5a8) from [<80286ba8>]
(platform_drv_probe+0x14/0x18)
[<80286ba8>] (platform_drv_probe+0x14/0x18) from [<802858b0>]
(driver_probe_device+0x80/0x20c)
[<802858b0>] (driver_probe_device+0x80/0x20c) from [<80285ac8>]
(__driver_attach+0x8c/0x90)
[<80285ac8>] (__driver_attach+0x8c/0x90) from [<80284230>]
(bus_for_each_dev+0x64/0x8c)
[<80284230>] (bus_for_each_dev+0x64/0x8c) from [<802849b0>]
(bus_add_driver+0xa4/0x230)
[<802849b0>] (bus_add_driver+0xa4/0x230) from [<80286098>]
(driver_register+0x78/0x140)
[<80286098>] (driver_register+0x78/0x140) from [<80286ef4>]
(platform_driver_probe+0x18/0x9c)
[<80286ef4>] (platform_driver_probe+0x18/0x9c) from [<805866d8>]
(imxfb_init+0x88/0xa0)
[<805866d8>] (imxfb_init+0x88/0xa0) from [<800087e4>]
(do_one_initcall+0x30/0x178)
[<800087e4>] (do_one_initcall+0x30/0x178) from [<80576310>]
(kernel_init+0xe4/0x1b0)
[<80576310>] (kernel_init+0xe4/0x1b0) from [<80015268>]
(kernel_thread_exit+0x0/0x8)
Division by zero in kernel.
[<80019ba4>] (unwind_backtrace+0x0/0xf4) from [<8022accc>] (Ldiv0+0x8/0x10)
[<8022accc>] (Ldiv0+0x8/0x10) from [<8022ac9c>] (__aeabi_uidivmod+0x8/0x18)
[<8022ac9c>] (__aeabi_uidivmod+0x8/0x18) from [<80254198>]
(cfb_imageblit+0x1fc/0x4b0)
[<80254198>] (cfb_imageblit+0x1fc/0x4b0) from [<80251964>]
(bit_putcs+0x2e4/0x420)
[<80251964>] (bit_putcs+0x2e4/0x420) from [<8024bde0>]
(fbcon_putcs+0xec/0x128)
[<8024bde0>] (fbcon_putcs+0xec/0x128) from [<802741f8>]
(do_update_region+0x108/0x18c)
[<802741f8>] (do_update_region+0x108/0x18c) from [<80275970>]
(update_region+0x70/0x88)
[<80275970>] (update_region+0x70/0x88) from [<8024dd08>]
(fbcon_switch+0x468/0x4bc)
[<8024dd08>] (fbcon_switch+0x468/0x4bc) from [<80276c84>]
(redraw_screen+0x15c/0x278)
[<80276c84>] (redraw_screen+0x15c/0x278) from [<80279e90>]
(take_over_console+0x2cc/0x37c)
[<80279e90>] (take_over_console+0x2cc/0x37c) from [<8024cacc>]
(fbcon_takeover+0x70/0xd4)
[<8024cacc>] (fbcon_takeover+0x70/0xd4) from [<8042541c>]
(notifier_call_chain+0x44/0x84)
[<8042541c>] (notifier_call_chain+0x44/0x84) from [<8004a2a0>]
(__blocking_notifier_call_chain+0x4c/0x64)
[<8004a2a0>] (__blocking_notifier_call_chain+0x4c/0x64) from
[<8004a2d0>] (blocking_notifier_call_chain+0x18/0x20)
[<8004a2d0>] (blocking_notifier_call_chain+0x18/0x20) from [<80246f78>]
(register_framebuffer+0x17c/0x230)
[<80246f78>] (register_framebuffer+0x17c/0x230) from [<80586ab8>]
(imxfb_probe+0x3c8/0x5a8)
[<80586ab8>] (imxfb_probe+0x3c8/0x5a8) from [<80286ba8>]
(platform_drv_probe+0x14/0x18)
[<80286ba8>] (platform_drv_probe+0x14/0x18) from [<802858b0>]
(driver_probe_device+0x80/0x20c)
[<802858b0>] (driver_probe_device+0x80/0x20c) from [<80285ac8>]
(__driver_attach+0x8c/0x90)
[<80285ac8>] (__driver_attach+0x8c/0x90) from [<80284230>]
(bus_for_each_dev+0x64/0x8c)
[<80284230>] (bus_for_each_dev+0x64/0x8c) from [<802849b0>]
(bus_add_driver+0xa4/0x230)
[<802849b0>] (bus_add_driver+0xa4/0x230) from [<80286098>]
(driver_register+0x78/0x140)
[<80286098>] (driver_register+0x78/0x140) from [<80286ef4>]
(platform_driver_probe+0x18/0x9c)
[<80286ef4>] (platform_driver_probe+0x18/0x9c) from [<805866d8>]
(imxfb_init+0x88/0xa0)
[<805866d8>] (imxfb_init+0x88/0xa0) from [<800087e4>]
(do_one_initcall+0x30/0x178)
[<800087e4>] (do_one_initcall+0x30/0x178) from [<80576310>]
(kernel_init+0xe4/0x1b0)
[<80576310>] (kernel_init+0xe4/0x1b0) from [<80015268>]
(kernel_thread_exit+0x0/0x8)
Without this setting the CPU does stop working (for JTAG debugger it has
the same effect as board is in power off state):
177772 bytes written at address 0x811ffc00
downloaded 177772 bytes in 19.548666s (8.881 KiB/s)
WARNING: unknown debug reason: 0xf
ThumbEE -- incomplete support
target state: halted
target halted in ThumbEE state due to debug-request, current mode: System
cpsr: 0xffffffff pc: 0xfffffff9
MMU: enabled, D-Cache: enabled, I-Cache: enabled
prev parent reply other threads:[~2012-11-07 20:33 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-07 14:00 i.MX 257 ARM-CPU: framebuffer error "division by zero" Stefan Koch
2012-11-07 14:23 ` Stefan Koch
2012-11-07 20:33 ` Stefan Koch [this message]
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