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Date: Wed, 09 Apr 2014 11:32:48 +0800
From: Jet Chen <jet.chen@...el.com>
To: Alessandro Rubini <rubini@...dd.com>
CC: "Greg Kroah-Hartman" <gregkh@...uxfoundation.org>,
linux-doc@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
Fengguang Wu <fengguang.wu@...el.com>
Subject: [FMC] BUG: scheduling while atomic: swapper/1/0x10000002
Hi Alessandro,
I got the below dmesg and the first bad commit is
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
commit 4debfe409b6e550032bfef9733e9f6f7c5613617
Author: Alessandro Rubini <rubini@...dd.com>
AuthorDate: Tue Jun 18 23:48:07 2013 +0200
Commit: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CommitDate: Tue Jun 18 15:42:15 2013 -0700
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>
+---------------------------------------------------------------------+------------+------------+------------+
| | 6007b1bd0f | 4debfe409b | 77b24197e8 |
+---------------------------------------------------------------------+------------+------------+------------+
| boot_successes | 27 | 0 | 0 |
| boot_failures | 318 | 345 | 13 |
| BUG:kernel_boot_hang | 118 | 119 | |
| BUG:kernel_early_hang_without_any_printk_output | 89 | 10 | |
| Out_of_memory:Kill_process | 24 | 1 | |
| Kernel_panic-not_syncing:Out_of_memory_and_no_killable_processes | 10 | | |
| backtrace:sock_alloc_file | 1 | | |
| backtrace:SyS_socket | 3 | | |
| backtrace:SyS_socketcall | 3 | | |
| backtrace:user_path_at | 3 | | |
| backtrace:SyS_faccessat | 3 | | |
| backtrace:SyS_access | 3 | | |
| backtrace:sock_create | 2 | | |
| backtrace:do_fork | 1 | 0 | 2 |
| backtrace:SyS_clone | 1 | 0 | 2 |
| backtrace:vfs_fstatat | 1 | | |
| backtrace:SyS_fstatat64 | 1 | | |
| BUG:unable_to_handle_kernel_paging_request | 87 | 38 | |
| Oops | 87 | 38 | |
| EIP_is_at_list_del_init | 86 | 38 | |
| BUG:sleeping_function_called_from_invalid_context_at_kernel/rwsem.c | 87 | 38 | |
| INFO:lockdep_is_turned_off | 87 | 38 | 12 |
| EIP_is_at_kthread_data | 70 | 28 | |
| backtrace:list_del_init | 86 | 38 | |
| backtrace:error_code | 87 | 38 | |
| EIP_is_at_worker_thread | 1 | | |
| BUG:scheduling_while_atomic | 0 | 216 | |
| backtrace:fmc_driver_register | 0 | 216 | |
| backtrace:fc_init | 0 | 216 | |
| backtrace:kernel_init_freeable | 0 | 216 | 13 |
| backtrace:kzalloc | 0 | 2 | |
| backtrace:device_private_init | 0 | 2 | |
| BUG:soft_lockup-CPU_stuck_for_s | 0 | 0 | 1 |
| EIP_is_at_augment_callbacks_propagate | 0 | 0 | 1 |
| Kernel_panic-not_syncing:softlockup:hung_tasks | 0 | 0 | 1 |
| backtrace:erase_augmented | 0 | 0 | 1 |
| backtrace:rbtree_test_init | 0 | 0 | 1 |
| inconsistent_IN-HARDIRQ-W-HARDIRQ-ON-W_usage | 0 | 0 | 12 |
| INFO:task_blocked_for_more_than_seconds | 0 | 0 | 12 |
| EIP_is_at_native_apic_mem_write | 0 | 0 | 10 |
| Kernel_panic-not_syncing:hung_task:blocked_tasks | 0 | 0 | 12 |
| backtrace:driver_register | 0 | 0 | 12 |
| backtrace:ide_cdrom_init | 0 | 0 | 12 |
| backtrace:vfs_read | 0 | 0 | 7 |
| backtrace:SyS_read | 0 | 0 | 7 |
| backtrace:vfs_write | 0 | 0 | 7 |
| backtrace:SyS_write | 0 | 0 | 7 |
| backtrace:watchdog | 0 | 0 | 12 |
| EIP_is_at__default_send_IPI_dest_field | 0 | 0 | 2 |
| backtrace:do_mount | 0 | 0 | 5 |
| backtrace:SyS_mount | 0 | 0 | 5 |
| backtrace:do_sys_open | 0 | 0 | 3 |
| backtrace:SyS_open | 0 | 0 | 3 |
+---------------------------------------------------------------------+------------+------------+------------+
[ 10.047684] fmc fake-design-for-testing-f001: Driver has no ID: matches all
[ 10.052183] fmc_write_eeprom fake-design-for-testing-f001: fmc_write_eeprom: no busid passed, refusing all cards
[ 10.059440] fmc fake-design-for-testing-f001: Driver has no ID: matches all
[ 10.064447] BUG: scheduling while atomic: swapper/1/0x10000002
[ 10.068677] 4 locks held by swapper/1:
[ 10.071897] #0: (&__lockdep_no_validate__){......}, at: [<c1429c9e>] __driver_attach+0x24/0x6a
[ 10.080751] #1: (&__lockdep_no_validate__){......}, at: [<c1429cb6>] __driver_attach+0x3c/0x6a
[ 10.089569] #2: (fc_lock){+.+.+.}, at: [<c1a6ce23>] fc_probe+0x6d/0xd3
[ 10.095948] #3: (misc_mtx){+.+.+.}, at: [<c140d4e9>] misc_register+0x1f/0xf7
[ 10.105338] CPU: 0 PID: 1 Comm: swapper Not tainted 3.10.0-rc6-00087-g4debfe4 #5
[ 10.111618] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.115783] cdccc020 cdccc020 cdccfc74 c1b4c870 cdccfc90 c1b48ae7 c1e7a875 cdccc2d0
[ 10.125492] 00000001 10000002 cdccfd6c cdccfd08 c1b5c989 00004082 cdccfcc0 c1044eb7
[ 10.135215] cdccc020 c1056266 cdccfcc4 cdcce000 cdccc020 cdccc51c 00000003 cdccc51c
[ 10.147601] Call Trace:
[ 10.150906] [<c1b4c870>] dump_stack+0x16/0x18
[ 10.154945] [<c1b48ae7>] __schedule_bug+0x5d/0x6f
[ 10.159221] [<c1b5c989>] __schedule+0x4c/0x524
[ 10.163385] [<c1044eb7>] ? sched_clock_cpu+0xc7/0xd5
[ 10.169343] [<c1056266>] ? mark_lock+0x1e/0x20c
[ 10.173700] [<c1057472>] ? __lock_is_held+0x2d/0x43
[ 10.177952] [<c10574cf>] ? lock_is_held+0x47/0x55
[ 10.181680] [<c10442be>] ? __might_sleep+0x6b/0x17a
[ 10.185293] [<c1042d91>] __cond_resched+0x16/0x26
[ 10.189317] [<c1b5cf31>] _cond_resched+0x11/0x18
[ 10.193023] [<c1b5d0ba>] __wait_for_common+0x26/0xdb
[ 10.196718] [<c1b5bb24>] ? console_conditional_schedule+0x24/0x24
[ 10.200837] [<c1042e95>] ? try_to_wake_up+0xf4/0xfe
[ 10.204580] [<c1b5d189>] wait_for_completion+0x1a/0x1c
[ 10.208455] [<c142ca64>] devtmpfs_create_node+0xd0/0xec
[ 10.212343] [<c14275a4>] device_add+0x18c/0x504
[ 10.215984] [<c142792e>] device_register+0x12/0x15
[ 10.219730] [<c1427e59>] device_create_vargs+0x67/0x8e
[ 10.223561] [<c1427ea8>] device_create+0x28/0x2a
[ 10.227198] [<c140d572>] misc_register+0xa8/0xf7
[ 10.230888] [<c1a6ce2b>] fc_probe+0x75/0xd3
[ 10.234439] [<c10dd7f1>] ? sysfs_create_link+0x24/0x2d
[ 10.238250] [<c1a6b4a5>] fmc_probe+0xf/0x11
[ 10.241735] [<c1429b50>] driver_probe_device+0x82/0x180
[ 10.245609] [<c1b5c160>] ? mutex_lock_nested+0x3e/0x44
[ 10.249341] [<c1429cc8>] __driver_attach+0x4e/0x6a
[ 10.253102] [<c142889f>] bus_for_each_dev+0x57/0x61
[ 10.256868] [<c1429a8f>] driver_attach+0x17/0x19
[ 10.260535] [<c1429c7a>] ? __device_attach+0x2c/0x2c
[ 10.264303] [<c1428e9d>] bus_add_driver+0xd2/0x1d5
[ 10.268292] [<c142a2a9>] driver_register+0x7a/0xd3
[ 10.271984] [<c14291b5>] ? bus_register+0x13f/0x20c
[ 10.275685] [<c1a6b60a>] fmc_driver_register+0x23/0x2d
[ 10.279520] [<c1a6cd98>] ? fc_read+0x68/0x68
[ 10.283026] [<c1a6cda5>] fc_init+0xd/0xf
[ 10.286517] [<c227ca7c>] do_one_initcall+0x7e/0x114
[ 10.290213] [<c227cc07>] kernel_init_freeable+0xf5/0x187
[ 10.294110] [<c227c442>] ? do_early_param+0x78/0x78
[ 10.297876] [<c1b45392>] kernel_init+0xb/0xbe
[ 10.301427] [<c1b5eafb>] ret_from_kernel_thread+0x1b/0x30
[ 10.305329] [<c1b45387>] ? rest_init+0x12c/0x12c
git bisect start v3.11 v3.10 --
git bisect bad 89d0abe3d695103505c025dde6e07b9c3dd772f4 # 02:16 2- 11 Merge tag 'arm64-stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64
git bisect bad d2b4a646717153a1a180b64d4a8464054dbd700e # 02:26 0- 15 Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma
git bisect bad 1873e50028ce87dd9014049c86d71a898fa02166 # 02:52 0- 1 Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64
git bisect bad a4883ef6af5e513a1e8c2ab9aab721604aa3a4f5 # 03:06 4- 14 Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
git bisect bad fe3c22bd5cadd8e36977b218b27fbea821381ec8 # 03:10 0- 1 Merge tag 'char-misc-3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
git bisect good 3f490f7f99053288bd85563f8d9b5032b810e177 # 04:04 345+ 313 Merge tag 'for-f2fs-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
git bisect good a84270189e2afc7028b1123415a66d444f460977 # 05:30 345+ 312 Merge tag 'usb-3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
git bisect good 0de10f9ea67d1046b1e16c91fa26accf23939aab # 07:10 345+ 279 Merge tag 'tty-3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
git bisect good ce49b6289fa3878b190f15192e54bb23dca552b6 # 07:41 345+ 294 Merge tag 'staging-3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
git bisect good fd5c25614012ccad75ef505982af4d6c08d0df83 # 08:10 345+ 312 vme: Free DMA resource allocation structure
git bisect good 36dd68319c7b56a76ed450b0e470067b5d74b9b2 # 08:35 345+ 331 memory: tegra30-mc: Fix IRQ handler.
git bisect bad 4640a3f2bff64b808bdedadcddf882aa4606f374 # 08:38 1- 3 FMC: fix error handling in probe() function
git bisect good 056d83f3c30c398f14eb879f1d1707e3a7808f4a # 09:12 345+ 337 FMC: add a software mezzanine driver
git bisect bad 05c3e0bb5629b897b0459e4bfb1b93d729033b99 # 09:17 0- 2 UIO: allow binding uio_pdrv_genirq.c to devices using command line option
git bisect bad 4debfe409b6e550032bfef9733e9f6f7c5613617 # 09:26 0- 3 FMC: add a char-device mezzanine driver
git bisect good 6007b1bd0f752a5c022f7944c65fb96c39d6db3d # 10:03 345+ 318 FMC: add a driver to write mezzanine EEPROM
# first bad commit: [1bc18086231c130895b87ec049be8ddcdab552b8
4debfe409b6e550032bfef9733e9f6f7c5613617] ata: delete non-required instances of include <linux/init.h>
git bisect bad 38dbfb59d1175ef458d006556061adeaa8751b72 # 10:03 0- 345 Linus 3.14-rc1
This script may reproduce the error.
-----------------------------------------------------------------------------
#!/bin/bash
kernel=$1
initrd=quantal-core-i386.cgz
wget --no-clobber https://github.com/fengguang/reproduce-kernel-bug/blob/master/initrd/$initrd
kvm=(
qemu-system-x86_64 -cpu kvm64 -enable-kvm
-kernel $kernel
-initrd $initrd
-smp 2
-m 256M
-net nic,vlan=0,macaddr=00:00:00:00:00:00,model=virtio
-net user,vlan=0
-net nic,vlan=1,model=e1000
-net user,vlan=1
-boot order=nc
-no-reboot
-watchdog i6300esb
-serial stdio
-display none
-monitor null
)
append=(
debug
sched_debug
apic=debug
ignore_loglevel
sysrq_always_enabled
panic=10
prompt_ramdisk=0
earlyprintk=ttyS0,115200
console=ttyS0,115200
console=tty0
vga=normal
root=/dev/ram0
rw
)
"${kvm[@]}" --append "${append[*]}"
-----------------------------------------------------------------------------
Thanks,
Fengguang
View attachment "dmesg-quantal-jaketown-39:20140409093508:i386-randconfig-c0-04051408::" of type "text/plain" (61069 bytes)
Download attachment "i386-randconfig-c0-04051408-77b24197e8f85a71718c559f1c4a55a52b163fb7-kernel_init_freeable+-x-12977.log" of type "application/octet-stream" (184032 bytes)
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