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Date: Sun, 11 Aug 2013 21:52:32 +0800
From: Fengguang Wu <fengguang.wu@...el.com>
To: fengguang.wu@...el.com, Alessandro Rubini <rubini@...dd.com>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
linux-kernel@...r.kernel.org
Subject: [fmc] BUG: scheduling while atomic: swapper/0/1/0x00000002
Alessandro,
FYI, the bug still exists in the upstream and linux-next kernels.
commit 4debfe409b6e550032bfef9733e9f6f7c5613617
Author: Alessandro Rubini <rubini@...dd.com>
Date: Tue Jun 18 23:48:07 2013 +0200
FMC: add a char-device mezzanine driver
This driver exports the memory area associated with the mezzanine card
as a misc device, so users can access registers.
Signed-off-by: Alessandro Rubini <rubini@...dd.com>
Acked-by: Juan David Gonzalez Cobas <dcobas@...n.ch>
Acked-by: Emilio G. Cota <cota@...ap.org>
Acked-by: Samuel Iglesias Gonsalvez <siglesias@...lia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
[ 1.209872] hidraw: raw HID events driver (C) Jiri Kosina
[ 1.210978] fake-fmc-carrier: mezzanine 0
[ 1.211567] Manufacturer: fake-vendor
[ 1.212157] Product name: fake-design-for-testing
[ 1.212857] fmc fake-design-for-testing-f001: Driver has no ID: matches all
[ 1.213743] fmc_trivial: probe of fake-design-for-testing-f001 failed with error -95
[ 1.214811] fmc fake-design-for-testing-f001: Driver has no ID: matches all
[ 1.215668] fmc_write_eeprom fake-design-for-testing-f001: fmc_write_eeprom: no busid passed, refusing all cards
[ 1.216982] fmc fake-design-for-testing-f001: Driver has no ID: matches all
[ 1.217870] BUG: scheduling while atomic: swapper/0/1/0x00000002
[ 1.218637] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 3.11.0-rc4-00592-gd92581f #282
[ 1.219689] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1.220445] 0000000000000000 ffff88000d8e38b0 ffffffff81896829 ffff88000df11e40
[ 1.221711] ffff88000d8e38c0 ffffffff81890b39 ffff88000d8e39c8 ffffffff8189c124
[ 1.222972] ffff88000d8e3fd8 0000000000011e40 ffff88000d8e3fd8 0000000000000000
[ 1.224256] Call Trace:
[ 1.224680] [<ffffffff81896829>] dump_stack+0x54/0x74
[ 1.225366] [<ffffffff81890b39>] __schedule_bug+0x43/0x51
[ 1.226075] [<ffffffff8189c124>] __schedule+0xa5/0x84b
[ 1.226775] [<ffffffff810fc0d6>] ? __alloc_pages_nodemask+0x15c/0x7ed
[ 1.227616] [<ffffffff813d6b99>] ? idr_get_empty_slot+0x220/0x337
[ 1.228400] [<ffffffff813d76af>] ? ida_get_new_above+0xf9/0x189
[ 1.229170] [<ffffffff8189c92a>] schedule+0x60/0x62
[ 1.229833] [<ffffffff8189a88a>] schedule_timeout+0x2a/0x1a2
[ 1.230585] [<ffffffff810b4348>] ? select_task_rq_fair+0x54a/0x6b0
[ 1.231376] [<ffffffff8104ce99>] ? kvm_clock_read+0x2e/0x3f
[ 1.232102] [<ffffffff8102b025>] ? sched_clock+0x9/0xd
[ 1.232792] [<ffffffff8189cead>] wait_for_common+0x105/0x144
[ 1.233546] [<ffffffff810afaa1>] ? try_to_wake_up+0x27f/0x27f
[ 1.234297] [<ffffffff8189cf04>] wait_for_completion+0x18/0x1a
[ 1.235052] [<ffffffff814cf593>] devtmpfs_create_node+0xe8/0x108
[ 1.235825] [<ffffffff814c8e35>] device_add+0x1bb/0x5f7
[ 1.236526] [<ffffffff813e1511>] ? kvasprintf+0x64/0x74
[ 1.237234] [<ffffffff814c9286>] device_register+0x15/0x18
[ 1.237956] [<ffffffff814c932f>] device_create_groups_vargs+0xa6/0xdb
[ 1.238770] [<ffffffff814c9b49>] device_create_vargs+0x15/0x17
[ 1.239533] [<ffffffff814c9b7a>] device_create+0x2f/0x31
[ 1.240248] [<ffffffff81124bc1>] ? __kmalloc_track_caller+0x72/0x116
[ 1.241052] [<ffffffff8189b690>] ? mutex_lock+0x1b/0x38
[ 1.241751] [<ffffffff81495c4f>] misc_register+0xb3/0x103
[ 1.242468] [<ffffffff816ddb06>] fc_probe+0x97/0x10a
[ 1.243135] [<ffffffff816dbfaf>] fmc_probe+0x12/0x14
[ 1.243819] [<ffffffff814cbf0a>] driver_probe_device+0x90/0x199
[ 1.244584] [<ffffffff814cc0a3>] __driver_attach+0x58/0x7a
[ 1.245305] [<ffffffff814cc04b>] ? __device_attach+0x38/0x38
[ 1.246039] [<ffffffff814ca84c>] bus_for_each_dev+0x78/0x82
[ 1.246789] [<ffffffff814cbe28>] driver_attach+0x19/0x1b
[ 1.247498] [<ffffffff814cafc2>] bus_add_driver+0xf5/0x1fd
[ 1.248228] [<ffffffff814cc585>] driver_register+0x8a/0xfb
[ 1.248944] [<ffffffff816dc0ec>] fmc_driver_register+0x29/0x33
[ 1.249704] [<ffffffff816ddb79>] ? fc_probe+0x10a/0x10a
[ 1.250411] [<ffffffff816ddb89>] fc_init+0x10/0x12
[ 1.251063] [<ffffffff81df3dab>] do_one_initcall+0x7f/0x10e
[ 1.251795] [<ffffffff810a3100>] ? param_array_set+0xba/0xf4
[ 1.252537] [<ffffffff810a331d>] ? parse_args+0x18e/0x246
[ 1.253250] [<ffffffff81df3fcc>] kernel_init_freeable+0x192/0x218
[ 1.254041] [<ffffffff81df373d>] ? do_early_param+0x88/0x88
[ 1.254776] [<ffffffff8188815e>] ? rest_init+0x92/0x92
[ 1.255467] [<ffffffff81888167>] kernel_init+0x9/0xd1
[ 1.256148] [<ffffffff8189e9fc>] ret_from_fork+0x7c/0xb0
[ 1.256859] [<ffffffff8188815e>] ? rest_init+0x92/0x92
[ 1.257553] fmc_chardev fake-design-for-testing-f001: Created misc device "fake-design-for-testing-f001"
git bisect start c095ba7224d8edc71dcef0d655911399a8bd4a3f v3.10 --
git bisect bad 689c3db4d57a73bee6c5ad7797fce7b54d32a87c # 14:17 0- CIFS: Fix a deadlock when a file is reopened
git bisect bad ee1a8d402e7e204d57fb108aa40003b6d1633036 # 14:21 0- Merge tag 'dt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
git bisect good ce49b6289fa3878b190f15192e54bb23dca552b6 # 17:05 25+ Merge tag 'staging-3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
git bisect good 1eb92b24e243085d242cf5ffd64829bba70972e1 # 17:12 25+ ARM: integrator: let pciv3 use mem/premem from device tree
git bisect good 076919a6e0154f06221e02f9e58b14eb1ed9e019 # 17:23 25+ Merge branch 'for_3.11/dts' of git://git.kernel.org/pub/scm/linux/kernel/git/bcousson/linux-omap-dt into next/dt
git bisect bad 22237d5a588cfad92525d2998ff14d3666399dce # 17:29 0- Merge tag 'fixes-non-critical-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
git bisect bad 2608fb653103419ac163206ff6d51b7b6528e2d9 # 17:33 0- drivers: hv: allocate synic structures before hv_synic_init()
git bisect good c265a0d5152619bddcf1986f17995d2df6781554 # 17:40 25+ pcie-gadget-spear: fix error return code in spear_pcie_gadget_probe()
git bisect good ea6add0bf1a209a3eab725e4429b1ac4e4cdef73 # 17:54 25+ pcmcia: Remove ARCH_CLPS711X dependency
git bisect good 022c674728f45ad22ce2bb5eb628ac9d3dbc3aea # 18:19 25+ FMC: add documentation for the core
git bisect bad e3a3c3a205554e564751cd9c0276b2af813d7a92 # 18:24 0- UIO: fix uio_pdrv_genirq with device tree but no interrupt
git bisect good 6007b1bd0f752a5c022f7944c65fb96c39d6db3d # 18:32 25+ FMC: add a driver to write mezzanine EEPROM
git bisect bad 05c3e0bb5629b897b0459e4bfb1b93d729033b99 # 18:37 0- UIO: allow binding uio_pdrv_genirq.c to devices using command line option
git bisect bad 4debfe409b6e550032bfef9733e9f6f7c5613617 # 18:46 0- FMC: add a char-device mezzanine driver
git bisect good 6007b1bd0f752a5c022f7944c65fb96c39d6db3d # 21:29 75+ FMC: add a driver to write mezzanine EEPROM
git bisect bad dcd86c25b2f19adec9d44033ae4b03861ee5f9c3 # 21:30 0- Merge remote-tracking branch 'kgene-samsung/for-next' into devel-snb-x86_64-201308061051
git bisect bad d92581fcad188d38a5c82c01ace43623bcafea48 # 21:36 0- Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Thanks,
Fengguang
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