Hi,
NFS is not working on a imx6q-sabresd board running linux-next 20160429:
[ 15.753317] #0: wm8962-audio
[ 15.759437] Root-NFS: no NFS server address
[ 15.763649] VFS: Unable to mount root fs via NFS, trying floppy.
[ 15.774223] VFS: Cannot open root device "nfs" or
unknown-block(2,0): error -6
[ 15.781540] Please append a correct "root=" boot option; here are
the available partitions:
[ 15.790145] 0100 65536 ram0 (driver?)
[ 15.794837] 0101 65536 ram1 (driver?)
[ 15.799576] 0102 65536 ram2 (driver?)
[ 15.804262] 0103 65536 ram3 (driver?)
[ 15.809023] 0104 65536 ram4 (driver?)
[ 15.813710] 0105 65536 ram5 (driver?)
[ 15.818392] 0106 65536 ram6 (driver?)
[ 15.823121] 0107 65536 ram7 (driver?)
[ 15.827804] 0108 65536 ram8 (driver?)
[ 15.832531] 0109 65536 ram9 (driver?)
[ 15.837213] 010a 65536 ram10 (driver?)
[ 15.841989] 010b 65536 ram11 (driver?)
[ 15.846729] 010c 65536 ram12 (driver?)
[ 15.851491] 010d 65536 ram13 (driver?)
[ 15.856228] 010e 65536 ram14 (driver?)
[ 15.860992] 010f 65536 ram15 (driver?)
[ 15.865742] 1f00 4096 mtdblock0 (driver?)
[ 15.870853] b300 3872256 mmcblk1 driver: mmcblk
[ 15.876199] b308 7757824 mmcblk2 driver: mmcblk
[ 15.881570] b320 128 mmcblk2rpmb (driver?)
[ 15.886830] b318 1024 mmcblk2boot1 (driver?)
[ 15.892201] b310 1024 mmcblk2boot0 (driver?)
[ 15.897541] Kernel panic - not syncing: VFS: Unable to mount root
fs on unknown-block(2,0)
[ 15.905978] CPU0: stopping
[ 15.908704] CPU: 0 PID: 0 Comm: swapper/0 Not tainted
4.6.0-rc5-next-20160429 #349
[ 15.916284] Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree)
[ 15.922818] Backtrace:
[ 15.925316] [<c010b6f8>] (dump_backtrace) from [<c010b894>]
(show_stack+0x18/0x1c)
[ 15.932893] r6:60000193 r5:ffffffff r4:00000000 r3:00000000
[ 15.938649] [<c010b87c>] (show_stack) from [<c03df190>]
(dump_stack+0xb0/0xe8)
[ 15.945889] [<c03df0e0>] (dump_stack) from [<c010edec>]
(handle_IPI+0x174/0x1a4)
[ 15.953292] r8:c0d01f08 r7:c0c746ec r6:00000000 r5:c0d02b10
r4:00000000 r3:c0d05e80
[ 15.961147] [<c010ec78>] (handle_IPI) from [<c0101618>]
(gic_handle_irq+0x8c/0x9c)
[ 15.968722] r8:c0d21f80 r7:c0d02c58 r6:c0d01f08 r5:f400010c
r4:f4000100 r3:00000c04
[ 15.976573] [<c010158c>] (gic_handle_irq) from [<c010c4b8>]
(__irq_svc+0x58/0x78)
[ 15.984065] Exception stack(0xc0d01f08 to 0xc0d01f50)
[ 15.989129] 1f00: 00000001 00000001 00000000
c011b920 00000000 c0d02984
[ 15.997318] 1f20: 00000000 00000000 c0c757b8 c0d029d8 c0d029d0
c0d01f64 c0d01f28 c0d01f58
[ 16.005505] 1f40: c016d120 c01089e0 20000013 ffffffff
[ 16.010563] r10:c0d029d0 r9:c0d029d8 r8:c0c757b8 r7:c0d01f3c
r6:ffffffff r5:20000013
[ 16.018495] r4:c01089e0 r3:c0d05e80
[ 16.022130] [<c01089b8>] (arch_cpu_idle) from [<c01661a0>]
(default_idle_call+0x28/0x38)
[ 16.030236] [<c0166178>] (default_idle_call) from [<c0166378>]
(cpu_startup_entry+0x1c8/0x24c)
[ 16.038864] [<c01661b0>] (cpu_startup_entry) from [<c08edd78>]
(rest_init+0x12c/0x16c)
[ 16.046788] r7:c0c5da48 r3:00000000
[ 16.050417] [<c08edc4c>] (rest_init) from [<c0c00cbc>]
(start_kernel+0x340/0x3b0)
[ 16.057906] r5:ffffffff r4:c0d6e050
[ 16.061532] [<c0c0097c>] (start_kernel) from [<1000807c>] (0x1000807c)
[ 16.068067] r10:00000000 r8:1000406a r7:c0d0780c r6:c0c5da44
r5:c0d0296c r4:c0d6e294
[ 16.076002] CPU2: stopping
[ 16.078725] CPU: 2 PID: 0 Comm: swapper/2 Not tainted
4.6.0-rc5-next-20160429 #349
[ 16.086302] Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree)
[ 16.092836] Backtrace:
[ 16.095320] [<c010b6f8>] (dump_backtrace) from [<c010b894>]
(show_stack+0x18/0x1c)
[ 16.102897] r6:60000193 r5:ffffffff r4:00000000 r3:00000000
[ 16.108646] [<c010b87c>] (show_stack) from [<c03df190>]
(dump_stack+0xb0/0xe8)
[ 16.115883] [<c03df0e0>] (dump_stack) from [<c010edec>]
(handle_IPI+0x174/0x1a4)
[ 16.123286] r8:ef0a5f58 r7:c0c746ec r6:00000000 r5:c0d02b10
r4:00000002 r3:ef0a8000
[ 16.131138] [<c010ec78>] (handle_IPI) from [<c0101618>]
(gic_handle_irq+0x8c/0x9c)
[ 16.138713] r8:c0d21f80 r7:c0d02c58 r6:ef0a5f58 r5:f400010c
r4:f4000100 r3:00000c04
[ 16.146562] [<c010158c>] (gic_handle_irq) from [<c010c4b8>]
(__irq_svc+0x58/0x78)
[ 16.154052] Exception stack(0xef0a5f58 to 0xef0a5fa0)
[ 16.159112] 5f40:
00000001 00000001
[ 16.167301] 5f60: 00000000 c011b920 00000000 c0d02984 00000000
00000000 c0c757b8 c0d029d8
[ 16.175489] 5f80: c0d029d0 ef0a5fb4 ef0a5f78 ef0a5fa8 c016d120
c01089e0 20000013 ffffffff
[ 16.183672] r10:c0d029d0 r9:c0d029d8 r8:c0c757b8 r7:ef0a5f8c
r6:ffffffff r5:20000013
[ 16.191601] r4:c01089e0 r3:ef0a8000
[ 16.195230] [<c01089b8>] (arch_cpu_idle) from [<c01661a0>]
(default_idle_call+0x28/0x38)
[ 16.203334] [<c0166178>] (default_idle_call) from [<c0166378>]
(cpu_startup_entry+0x1c8/0x24c)
[ 16.211959] [<c01661b0>] (cpu_startup_entry) from [<c010ea14>]
(secondary_start_kernel+0x130/0x154)
[ 16.221010] r7:c0d6e388 r3:00000004
[ 16.224633] [<c010e8e4>] (secondary_start_kernel) from [<101016cc>]
(0x101016cc)
[ 16.232035] r5:00000051 r4:3f08806a
[ 16.235656] CPU1: stopping
[ 16.238378] CPU: 1 PID: 0 Comm: swapper/1 Not tainted
4.6.0-rc5-next-20160429 #349
[ 16.245954] Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree)
[ 16.252487] Backtrace:
[ 16.254970] [<c010b6f8>] (dump_backtrace) from [<c010b894>]
(show_stack+0x18/0x1c)
[ 16.262545] r6:60000193 r5:ffffffff r4:00000000 r3:00000000
[ 16.268291] [<c010b87c>] (show_stack) from [<c03df190>]
(dump_stack+0xb0/0xe8)
[ 16.275529] [<c03df0e0>] (dump_stack) from [<c010edec>]
(handle_IPI+0x174/0x1a4)
[ 16.282931] r8:ef0a3f58 r7:c0c746ec r6:00000000 r5:c0d02b10
r4:00000001 r3:ef076c00
[ 16.290777] [<c010ec78>] (handle_IPI) from [<c0101618>]
(gic_handle_irq+0x8c/0x9c)
[ 16.298353] r8:c0d21f80 r7:c0d02c58 r6:ef0a3f58 r5:f400010c
r4:f4000100 r3:00000c04
[ 16.306199] [<c010158c>] (gic_handle_irq) from [<c010c4b8>]
(__irq_svc+0x58/0x78)
[ 16.313688] Exception stack(0xef0a3f58 to 0xef0a3fa0)
[ 16.318747] 3f40:
00000001 00000001
[ 16.326935] 3f60: 00000000 c011b920 00000000 c0d02984 00000000
00000000 c0c757b8 c0d029d8
[ 16.335123] 3f80: c0d029d0 ef0a3fb4 ef0a3f78 ef0a3fa8 c016d120
c01089e0 20000013 ffffffff
[ 16.343304] r10:c0d029d0 r9:c0d029d8 r8:c0c757b8 r7:ef0a3f8c
r6:ffffffff r5:20000013
[ 16.351230] r4:c01089e0 r3:ef076c00
[ 16.354856] [<c01089b8>] (arch_cpu_idle) from [<c01661a0>]
(default_idle_call+0x28/0x38)
[ 16.362961] [<c0166178>] (default_idle_call) from [<c0166378>]
(cpu_startup_entry+0x1c8/0x24c)
[ 16.371585] [<c01661b0>] (cpu_startup_entry) from [<c010ea14>]
(secondary_start_kernel+0x130/0x154)
[ 16.380635] r7:c0d6e388 r3:00000002
[ 16.384256] [<c010e8e4>] (secondary_start_kernel) from [<101016cc>]
(0x101016cc)
[ 16.391657] r5:00000051 r4:3f08806a
[ 16.395300] ---[ end Kernel panic - not syncing: VFS: Unable to
mount root fs on unknown-block(2,0)
Any ideas? Thanks
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