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Message-ID: <bug-192131-13602@https.bugzilla.kernel.org/>
Date: Sun, 08 Jan 2017 23:51:56 +0000
From: bugzilla-daemon@...zilla.kernel.org
To: linux-ext4@...r.kernel.org
Subject: [Bug 192131] New: Hang up at boot time [<c0c4d1ac>]
(io_schedule_timeout) from [<c0c4e344>] (bit_wait_i)
https://bugzilla.kernel.org/show_bug.cgi?id=192131
Bug ID: 192131
Summary: Hang up at boot time [<c0c4d1ac>]
(io_schedule_timeout) from [<c0c4e344>] (bit_wait_i)
Product: File System
Version: 2.5
Kernel Version: 4.10.0-rc2
Hardware: ARM
OS: Linux
Tree: Mainline
Status: NEW
Severity: blocking
Priority: P1
Component: ext4
Assignee: fs_ext4@...nel-bugs.osdl.org
Reporter: bugux@...uyouyou.fr
Regression: No
Created attachment 250821
--> https://bugzilla.kernel.org/attachment.cgi?id=250821&action=edit
Kernel .config file used to compile the kernel in question
Greetings,
I'm currently experiencing hang up at boot time when using a Linux Kernel
4.10.0-rc2 on a Rockchip 3288 ARM board. Since I cannot login to the system in
such conditions, I'm using a UART←→USB cable and minicom to read the console
messages.
The system first hangs at:
[ 4.445965] ttyS2 - failed to request DMA
Then print the following after a few minutes:
[ 246.829223] INFO: task swapper/0:1 blocked for more than 120 seconds.
[ 246.835665] Not tainted 4.10.0-rc2MyyMyy #1
[ 246.840368] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables
this.
[ 246.848190] swapper/0 D 0 1 0 0x00000000
[ 246.853685] [<c0c4d684>] (__schedule) from [<c0c4da3c>] (schedule+0xb8/0xd0)
[ 246.860731] [<c0c4da3c>] (schedule) from [<c0c51280>]
(schedule_timeout+0x2c)
[ 246.868383] [<c0c51280>] (schedule_timeout) from [<c0c4d1ac>]
(io_schedule_t)
[ 246.876901] [<c0c4d1ac>] (io_schedule_timeout) from [<c0c4e344>]
(bit_wait_i)
[ 246.884986] [<c0c4e344>] (bit_wait_io) from [<c0c4df58>]
(__wait_on_bit+0x70)
[ 246.892550] [<c0c4df58>] (__wait_on_bit) from [<c0c4e0b4>]
(out_of_line_wait)
[ 246.901156] [<c0c4e0b4>] (out_of_line_wait_on_bit) from [<c0273904>]
(__wait)
[ 246.910022] [<c0273904>] (__wait_on_buffer) from [<c0276da8>]
(__bread_gfp+0)
[ 246.917847] [<c0276da8>] (__bread_gfp) from [<c0303e5c>]
(ext4_fill_super+0x)
[ 246.925847] [<c0303e5c>] (ext4_fill_super) from [<c0243c8c>]
(mount_bdev+0x1)
[ 246.933673] [<c0243c8c>] (mount_bdev) from [<c0300104>]
(ext4_mount+0x24/0x3)
[ 246.940893] [<c0300104>] (ext4_mount) from [<c0244c68>]
(mount_fs+0x80/0x15c)
[ 246.948025] [<c0244c68>] (mount_fs) from [<c025faa8>]
(vfs_kern_mount+0x58/0)
[ 246.955503] [<c025faa8>] (vfs_kern_mount) from [<c0263300>]
(do_mount+0x814/)
[ 246.963069] [<c0263300>] (do_mount) from [<c0263810>] (SyS_mount+0x84/0xac)
[ 246.970028] [<c0263810>] (SyS_mount) from [<c110129c>]
(mount_block_root+0x1)
[ 246.977856] [<c110129c>] (mount_block_root) from [<c11015a4>]
(mount_root+0x)
[ 246.985594] [<c11015a4>] (mount_root) from [<c1101720>]
(prepare_namespace+0)
[ 246.993593] [<c1101720>] (prepare_namespace) from [<c1100f54>]
(kernel_init_)
[ 247.002458] [<c1100f54>] (kernel_init_freeable) from [<c0c4c8c0>]
(kernel_in)
[ 247.010718] [<c0c4c8c0>] (kernel_init) from [<c0107a38>]
(ret_from_fork+0x14)
[ 247.018282] NMI backtrace for cpu 2
[ 247.021770] CPU: 2 PID: 34 Comm: khungtaskd Not tainted 4.10.0-rc2MyyMyy #1
[ 247.028718] Hardware name: Rockchip (Device Tree)
[ 247.033416] [<c0110674>] (unwind_backtrace) from [<c010c034>]
(show_stack+0x)
[ 247.041147] [<c010c034>] (show_stack) from [<c06526e4>]
(dump_stack+0x80/0xa)
[ 247.048358] [<c06526e4>] (dump_stack) from [<c06567c4>]
(nmi_cpu_backtrace+0)
[ 247.056175] [<c06567c4>] (nmi_cpu_backtrace) from [<c06568a0>]
(nmi_trigger_)
[ 247.065725] [<c06568a0>] (nmi_trigger_cpumask_backtrace) from [<c010eefc>]
()
[ 247.076317] [<c010eefc>] (arch_trigger_cpumask_backtrace) from [<c01b7a98>]
)
[ 247.085262] [<c01b7a98>] (watchdog) from [<c013f710>] (kthread+0x128/0x144)
[ 247.092215] [<c013f710>] (kthread) from [<c0107a38>]
(ret_from_fork+0x14/0x3)
[ 247.099435] Sending NMI from CPU 2 to CPUs 0-1,3:
[ 247.104239] NMI backtrace for cpu 3
[ 247.107720] CPU: 3 PID: 0 Comm: swapper/3 Not tainted 4.10.0-rc2MyyMyy #1
[ 247.114492] Hardware name: Rockchip (Device Tree)
[ 247.119185] task: ee94de80 task.stack: ee978000
[ 247.123705] PC is at arch_cpu_idle+0x3c/0x48
[ 247.127964] LR is at arch_cpu_idle+0x38/0x48
[ 247.132224] pc : [<c01084cc>] lr : [<c01084c8>] psr: 60000013
[ 247.138477] sp : ee979f90 ip : ee979fa0 fp : ee979f9c
[ 247.143690] r10: 00000000 r9 : 410fc0d1 r8 : 0000406a
[ 247.148902] r7 : c12e52e8 r6 : c11c41d0 r5 : 00000000 r4 : 00000000
[ 247.155415] r3 : c011ba80 r2 : 00000000 r1 : 00000000 r0 : 00000001
[ 247.161928] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment
none
[ 247.169047] Control: 10c5387d Table: 0000406a DAC: 00000051
[ 247.174781] CPU: 3 PID: 0 Comm: swapper/3 Not tainted 4.10.0-rc2MyyMyy #1
[ 247.181553] Hardware name: Rockchip (Device Tree)
[ 247.186246] [<c0110674>] (unwind_backtrace) from [<c010c034>]
(show_stack+0x)
[ 247.193972] [<c010c034>] (show_stack) from [<c06526e4>]
(dump_stack+0x80/0xa)
[ 247.201179] [<c06526e4>] (dump_stack) from [<c010875c>]
(show_regs+0x1c/0x20)
[ 247.208298] [<c010875c>] (show_regs) from [<c06567bc>]
(nmi_cpu_backtrace+0x)
[ 247.216024] [<c06567bc>] (nmi_cpu_backtrace) from [<c010ec7c>]
(handle_IPI+0)
[ 247.224011] [<c010ec7c>] (handle_IPI) from [<c01014ac>]
(gic_handle_irq+0x88)
[ 247.231563] [<c01014ac>] (gic_handle_irq) from [<c010cb8c>]
(__irq_svc+0x6c/)
[ 247.239030] Exception stack(0xee979f40 to 0xee979f88)
[ 247.244069] 9f40: 00000001 00000000 00000000 c011ba80 00000000 00000000
c11c8
[ 247.252229] 9f60: 0000406a 410fc0d1 00000000 ee979f9c ee979fa0 ee979f90
c010c
[ 247.260388] 9f80: 60000013 ffffffff
[ 247.263868] [<c010cb8c>] (__irq_svc) from [<c01084cc>]
(arch_cpu_idle+0x3c/0)
[ 247.271248] [<c01084cc>] (arch_cpu_idle) from [<c0c52124>]
(default_idle_cal)
[ 247.279321] [<c0c52124>] (default_idle_call) from [<c01663e8>]
(do_idle+0xf0)
[ 247.286960] [<c01663e8>] (do_idle) from [<c0166788>]
(cpu_startup_entry+0x28)
[ 247.294513] [<c0166788>] (cpu_startup_entry) from [<c010e814>]
(secondary_st)
[ 247.303540] [<c010e814>] (secondary_start_kernel) from [<0010192c>]
(0x10192)
[ 247.310747] NMI backtrace for cpu 1
[ 247.314228] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.10.0-rc2MyyMyy #1
[ 247.321001] Hardware name: Rockchip (Device Tree)
[ 247.325693] task: ee94d100 task.stack: ee974000
[ 247.330213] PC is at arch_cpu_idle+0x3c/0x48
[ 247.334472] LR is at arch_cpu_idle+0x38/0x48
[ 247.338731] pc : [<c01084cc>] lr : [<c01084c8>] psr: 60000013
[ 247.344983] sp : ee975f90 ip : ee975fa0 fp : ee975f9c
[ 247.350196] r10: 00000000 r9 : 410fc0d1 r8 : 0000406a
[ 247.355409] r7 : c12e52e8 r6 : c11c41d0 r5 : 00000000 r4 : 00000000
[ 247.361922] r3 : c011ba80 r2 : 00000000 r1 : 00000000 r0 : 00000001
[ 247.368435] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment
none
[ 247.375554] Control: 10c5387d Table: 0000406a DAC: 00000051
[ 247.381288] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.10.0-rc2MyyMyy #1
[ 247.388060] Hardware name: Rockchip (Device Tree)
[ 247.392753] [<c0110674>] (unwind_backtrace) from [<c010c034>]
(show_stack+0x)
[ 247.400479] [<c010c034>] (show_stack) from [<c06526e4>]
(dump_stack+0x80/0xa)
[ 247.407686] [<c06526e4>] (dump_stack) from [<c010875c>]
(show_regs+0x1c/0x20)
[ 247.414806] [<c010875c>] (show_regs) from [<c06567bc>]
(nmi_cpu_backtrace+0x)
[ 247.422533] [<c06567bc>] (nmi_cpu_backtrace) from [<c010ec7c>]
(handle_IPI+0)
[ 247.430519] [<c010ec7c>] (handle_IPI) from [<c01014ac>]
(gic_handle_irq+0x88)
[ 247.438071] [<c01014ac>] (gic_handle_irq) from [<c010cb8c>]
(__irq_svc+0x6c/)
[ 247.445538] Exception stack(0xee975f40 to 0xee975f88)
[ 247.450577] 5f40: 00000001 00000000 00000000 c011ba80 00000000 00000000
c11c8
[ 247.458737] 5f60: 0000406a 410fc0d1 00000000 ee975f9c ee975fa0 ee975f90
c010c
[ 247.466897] 5f80: 60000013 ffffffff
[ 247.470376] [<c010cb8c>] (__irq_svc) from [<c01084cc>]
(arch_cpu_idle+0x3c/0)
[ 247.477755] [<c01084cc>] (arch_cpu_idle) from [<c0c52124>]
(default_idle_cal)
[ 247.485828] [<c0c52124>] (default_idle_call) from [<c01663e8>]
(do_idle+0xf0)
[ 247.493467] [<c01663e8>] (do_idle) from [<c0166788>]
(cpu_startup_entry+0x28)
[ 247.501020] [<c0166788>] (cpu_startup_entry) from [<c010e814>]
(secondary_st)
[ 247.510047] [<c010e814>] (secondary_start_kernel) from [<0010192c>]
(0x10192)
[ 247.517254] NMI backtrace for cpu 0
[ 247.520736] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.10.0-rc2MyyMyy #1
[ 247.527509] Hardware name: Rockchip (Device Tree)
[ 247.532201] task: c120f100 task.stack: c1200000
[ 247.536721] PC is at arch_cpu_idle+0x3c/0x48
[ 247.540981] LR is at arch_cpu_idle+0x38/0x48
[ 247.545241] pc : [<c01084cc>] lr : [<c01084c8>] psr: 60000113
[ 247.551493] sp : c1201f50 ip : c1201f60 fp : c1201f5c
[ 247.556706] r10: 00000000 r9 : c116da38 r8 : eefdedc0
[ 247.561919] r7 : c1209480 r6 : c11c41d0 r5 : 00000000 r4 : 00000000
[ 247.568432] r3 : c011ba80 r2 : 00000000 r1 : 00000000 r0 : 00000001
[ 247.574945] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment
none
[ 247.582064] Control: 10c5387d Table: 0000406a DAC: 00000051
[ 247.587796] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.10.0-rc2MyyMyy #1
[ 247.594569] Hardware name: Rockchip (Device Tree)
[ 247.599262] [<c0110674>] (unwind_backtrace) from [<c010c034>]
(show_stack+0x)
[ 247.606988] [<c010c034>] (show_stack) from [<c06526e4>]
(dump_stack+0x80/0xa)
[ 247.614194] [<c06526e4>] (dump_stack) from [<c010875c>]
(show_regs+0x1c/0x20)
[ 247.621315] [<c010875c>] (show_regs) from [<c06567bc>]
(nmi_cpu_backtrace+0x)
[ 247.629041] [<c06567bc>] (nmi_cpu_backtrace) from [<c010ec7c>]
(handle_IPI+0)
[ 247.637028] [<c010ec7c>] (handle_IPI) from [<c01014ac>]
(gic_handle_irq+0x88)
[ 247.644580] [<c01014ac>] (gic_handle_irq) from [<c010cb8c>]
(__irq_svc+0x6c/)
[ 247.652046] Exception stack(0xc1201f00 to 0xc1201f48)
[ 247.657086] 1f00: 00000001 00000000 00000000 c011ba80 00000000 00000000
c11c0
[ 247.665247] 1f20: eefdedc0 c116da38 00000000 c1201f5c c1201f60 c1201f50
c010c
[ 247.673406] 1f40: 60000113 ffffffff
[ 247.676885] [<c010cb8c>] (__irq_svc) from [<c01084cc>]
(arch_cpu_idle+0x3c/0)
[ 247.684266] [<c01084cc>] (arch_cpu_idle) from [<c0c52124>]
(default_idle_cal)
[ 247.692339] [<c0c52124>] (default_idle_call) from [<c01663e8>]
(do_idle+0xf0)
[ 247.699979] [<c01663e8>] (do_idle) from [<c0166788>]
(cpu_startup_entry+0x28)
[ 247.707531] [<c0166788>] (cpu_startup_entry) from [<c0c4c890>]
(rest_init+0x)
[ 247.715258] [<c0c4c890>] (rest_init) from [<c1100cbc>]
(start_kernel+0x338/0)
[ 247.722725] [<c1100cbc>] (start_kernel) from [<0000807c>] (0x807c)
[ 247.728903] Kernel panic - not syncing: hung_task: blocked tasks
[ 247.734899] CPU: 2 PID: 34 Comm: khungtaskd Not tainted 4.10.0-rc2MyyMyy #1
[ 247.741846] Hardware name: Rockchip (Device Tree)
[ 247.746543] [<c0110674>] (unwind_backtrace) from [<c010c034>]
(show_stack+0x)
[ 247.754273] [<c010c034>] (show_stack) from [<c06526e4>]
(dump_stack+0x80/0xa)
[ 247.761483] [<c06526e4>] (dump_stack) from [<c01f3edc>] (panic+0xd8/0x25c)
[ 247.768347] [<c01f3edc>] (panic) from [<c01b7aa0>] (watchdog+0x38c/0x40c)
[ 247.775123] [<c01b7aa0>] (watchdog) from [<c013f710>] (kthread+0x128/0x144)
[ 247.782074] [<c013f710>] (kthread) from [<c0107a38>]
(ret_from_fork+0x14/0x3)
[ 247.789284] CPU0: stopping
[ 247.791985] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.10.0-rc2MyyMyy #1
[ 247.798758] Hardware name: Rockchip (Device Tree)
[ 247.803455] [<c0110674>] (unwind_backtrace) from [<c010c034>]
(show_stack+0x)
[ 247.811184] [<c010c034>] (show_stack) from [<c06526e4>]
(dump_stack+0x80/0xa)
[ 247.818393] [<c06526e4>] (dump_stack) from [<c010ebec>]
(handle_IPI+0x180/0x)
[ 247.825776] [<c010ebec>] (handle_IPI) from [<c01014ac>]
(gic_handle_irq+0x88)
[ 247.833331] [<c01014ac>] (gic_handle_irq) from [<c010cb8c>]
(__irq_svc+0x6c/)
[ 247.840797] Exception stack(0xc1201f00 to 0xc1201f48)
[ 247.845840] 1f00: 00000001 00000000 00000000 c011ba80 00000000 00000000
c11c0
[ 247.854003] 1f20: eefdedc0 c116da38 00000000 c1201f5c c1201f60 c1201f50
c010c
[ 247.862164] 1f40: 60000113 ffffffff
[ 247.865646] [<c010cb8c>] (__irq_svc) from [<c01084cc>]
(arch_cpu_idle+0x3c/0)
[ 247.873030] [<c01084cc>] (arch_cpu_idle) from [<c0c52124>]
(default_idle_cal)
[ 247.881099] [<c0c52124>] (default_idle_call) from [<c01663e8>]
(do_idle+0xf0)
[ 247.888742] [<c01663e8>] (do_idle) from [<c0166788>]
(cpu_startup_entry+0x28)
[ 247.896298] [<c0166788>] (cpu_startup_entry) from [<c0c4c890>]
(rest_init+0x)
[ 247.904028] [<c0c4c890>] (rest_init) from [<c1100cbc>]
(start_kernel+0x338/0)
[ 247.911497] [<c1100cbc>] (start_kernel) from [<0000807c>] (0x807c)
[ 247.917665] CPU3: stopping
[ 247.920367] CPU: 3 PID: 0 Comm: swapper/3 Not tainted 4.10.0-rc2MyyMyy #1
[ 247.927140] Hardware name: Rockchip (Device Tree)
[ 247.931838] [<c0110674>] (unwind_backtrace) from [<c010c034>]
(show_stack+0x)
[ 247.939568] [<c010c034>] (show_stack) from [<c06526e4>]
(dump_stack+0x80/0xa)
[ 247.946777] [<c06526e4>] (dump_stack) from [<c010ebec>]
(handle_IPI+0x180/0x)
[ 247.954160] [<c010ebec>] (handle_IPI) from [<c01014ac>]
(gic_handle_irq+0x88)
[ 247.961715] [<c01014ac>] (gic_handle_irq) from [<c010cb8c>]
(__irq_svc+0x6c/)
[ 247.969182] Exception stack(0xee979f40 to 0xee979f88)
[ 247.974224] 9f40: 00000001 00000000 00000000 c011ba80 00000000 00000000
c11c8
[ 247.982387] 9f60: 0000406a 410fc0d1 00000000 ee979f9c ee979fa0 ee979f90
c010c
[ 247.990547] 9f80: 60000013 ffffffff
[ 247.994031] [<c010cb8c>] (__irq_svc) from [<c01084cc>]
(arch_cpu_idle+0x3c/0)
[ 248.001415] [<c01084cc>] (arch_cpu_idle) from [<c0c52124>]
(default_idle_cal)
[ 248.009492] [<c0c52124>] (default_idle_call) from [<c01663e8>]
(do_idle+0xf0)
[ 248.017136] [<c01663e8>] (do_idle) from [<c0166788>]
(cpu_startup_entry+0x28)
[ 248.024692] [<c0166788>] (cpu_startup_entry) from [<c010e814>]
(secondary_st)
[ 248.033713] [<c010e814>] (secondary_start_kernel) from [<0010192c>]
(0x10192)
[ 248.040920] CPU1: stopping
[ 248.043621] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.10.0-rc2MyyMyy #1
[ 248.050393] Hardware name: Rockchip (Device Tree)
[ 248.055090] [<c0110674>] (unwind_backtrace) from [<c010c034>]
(show_stack+0x)
[ 248.062819] [<c010c034>] (show_stack) from [<c06526e4>]
(dump_stack+0x80/0xa)
[ 248.070029] [<c06526e4>] (dump_stack) from [<c010ebec>]
(handle_IPI+0x180/0x)
[ 248.077411] [<c010ebec>] (handle_IPI) from [<c01014ac>]
(gic_handle_irq+0x88)
[ 248.084967] [<c01014ac>] (gic_handle_irq) from [<c010cb8c>]
(__irq_svc+0x6c/)
[ 248.092433] Exception stack(0xee975f40 to 0xee975f88)
[ 248.097476] 5f40: 00000001 00000000 00000000 c011ba80 00000000 00000000
c11c8
[ 248.105638] 5f60: 0000406a 410fc0d1 00000000 ee975f9c ee975fa0 ee975f90
c010c
[ 248.113799] 5f80: 60000013 ffffffff
[ 248.117282] [<c010cb8c>] (__irq_svc) from [<c01084cc>]
(arch_cpu_idle+0x3c/0)
[ 248.124666] [<c01084cc>] (arch_cpu_idle) from [<c0c52124>]
(default_idle_cal)
[ 248.132743] [<c0c52124>] (default_idle_call) from [<c01663e8>]
(do_idle+0xf0)
[ 248.140386] [<c01663e8>] (do_idle) from [<c0166788>]
(cpu_startup_entry+0x28)
[ 248.147943] [<c0166788>] (cpu_startup_entry) from [<c010e814>]
(secondary_st)
[ 248.156971] [<c010e814>] (secondary_start_kernel) from [<0010192c>]
(0x10192)
[ 248.164184] ---[ end Kernel panic - not syncing: hung_task: blocked tasks
Since the first backtrace relates to ext4 mount functions, I'm putting this
bugreport here.
However, I'm not sure where this bug comes from.
The system is a Rockchip 3288 MiQi board. The DTB is compiled from the
arch/arm/boot/dts/rk3288-miqi.dts file.
I'm attaching the kernel .config file used to compile this kernel.
The 4.9 kernels worked flawlessly, on that regard.
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