linux-4.17-rc4 marvell-nand.c driver problems

Greg Ungerer gerg at kernel.org
Fri May 11 00:11:28 PDT 2018 

Hi Miquel,

I have a hardware platform built around the Armada 370 using NAND flash.
Its old hardware, and has run pretty much every kernel version from
3.10 up to 4.16 with no problems. The flash is 128Mbyte SLC from various
vendors (Spansion, Micron, etc).

It has always been using the pxa3xx_nand.c driver up to now. With that
gone in 4.17 I am trying out the marvell_nand.c driver. I am getting
a dump just after startup:

UBIFS (ubi0:1): background thread "ubifs_bgt0_1" started, PID 154
marvell-nfc d00d0000.nand: Timeout waiting for RB signal
ubi0 error: ubi_io_write: error -110 while writing 2048 bytes to PEB 
333:16384, written 0 bytes
CPU: 0 PID: 153 Comm: mount Not tainted 4.17.0-rc4-dirty #4
Hardware name: Marvell Armada 370/XP (Device Tree)
[<c010d8f4>] (unwind_backtrace) from [<c010b350>] (show_stack+0x10/0x14)
[<c010b350>] (show_stack) from [<c03ceba0>] (ubi_io_write+0x4d0/0x664)
[<c03ceba0>] (ubi_io_write) from [<c03cc004>] (ubi_eba_write_leb+0x80/0x650)
[<c03cc004>] (ubi_eba_write_leb) from [<c03cab40>] (ubi_leb_write+0xc0/0xe4)
[<c03cab40>] (ubi_leb_write) from [<c0271c38>] (ubifs_leb_write+0xa0/0x130)
[<c0271c38>] (ubifs_leb_write) from [<c027331c>] 
(ubifs_write_node+0xb8/0x1b4)
[<c027331c>] (ubifs_write_node) from [<c0278e6c>] 
(ubifs_write_master+0xbc/0x150)
[<c0278e6c>] (ubifs_write_master) from [<c0270020>] 
(ubifs_mount+0xfc8/0x14ac)
[<c0270020>] (ubifs_mount) from [<c01a8c78>] (mount_fs+0x14/0xa4)
[<c01a8c78>] (mount_fs) from [<c01c088c>] (vfs_kern_mount+0x48/0xd8)
[<c01c088c>] (vfs_kern_mount) from [<c01c33d0>] (do_mount+0x174/0xac4)
[<c01c33d0>] (do_mount) from [<c01c4080>] (ksys_mount+0x8c/0xbc)
[<c01c4080>] (ksys_mount) from [<c0101000>] (ret_fast_syscall+0x0/0x54)
Exception stack(0xceb15fa8 to 0xceb15ff0)
5fa0:                   00000000 befedc80 befedfae befedfba befedfa8 
00008000
5fc0: 00000000 befedc80 b6f3b4a0 00000015 00000000 00000000 b6f3df74 
00065704
5fe0: b6ec2d18 befedb8c 0002aa60 b6ec2d28
ubi0: dumping 2048 bytes of data from PEB 333, offset 16384
ubi0 warning: ubi_eba_write_leb: failed to write data to PEB 333
ubi0 warning: ubi_eba_write_leb: switch to read-only mode
CPU: 0 PID: 153 Comm: mount Not tainted 4.17.0-rc4-dirty #4
Hardware name: Marvell Armada 370/XP (Device Tree)
[<c010d8f4>] (unwind_backtrace) from [<c010b350>] (show_stack+0x10/0x14)
[<c010b350>] (show_stack) from [<c03cc1ac>] (ubi_eba_write_leb+0x228/0x650)
[<c03cc1ac>] (ubi_eba_write_leb) from [<c03cab40>] (ubi_leb_write+0xc0/0xe4)
[<c03cab40>] (ubi_leb_write) from [<c0271c38>] (ubifs_leb_write+0xa0/0x130)
[<c0271c38>] (ubifs_leb_write) from [<c027331c>] 
(ubifs_write_node+0xb8/0x1b4)
[<c027331c>] (ubifs_write_node) from [<c0278e6c>] 
(ubifs_write_master+0xbc/0x150)
[<c0278e6c>] (ubifs_write_master) from [<c0270020>] 
(ubifs_mount+0xfc8/0x14ac)
[<c0270020>] (ubifs_mount) from [<c01a8c78>] (mount_fs+0x14/0xa4)
[<c01a8c78>] (mount_fs) from [<c01c088c>] (vfs_kern_mount+0x48/0xd8)
[<c01c088c>] (vfs_kern_mount) from [<c01c33d0>] (do_mount+0x174/0xac4)
[<c01c33d0>] (do_mount) from [<c01c4080>] (ksys_mount+0x8c/0xbc)
[<c01c4080>] (ksys_mount) from [<c0101000>] (ret_fast_syscall+0x0/0x54)
Exception stack(0xceb15fa8 to 0xceb15ff0)
5fa0:                   00000000 befedc80 befedfae befedfba befedfa8 
00008000
5fc0: 00000000 befedc80 b6f3b4a0 00000015 00000000 00000000 b6f3df74 
00065704
5fe0: b6ec2d18 befedb8c 0002aa60 b6ec2d28
UBIFS error (ubi0:1 pid 153): ubifs_leb_write: writing 2048 bytes to LEB 
1:12288 failed, error -110
UBIFS warning (ubi0:1 pid 153): ubifs_ro_mode.part.0: switched to 
read-only mode, error -110
CPU: 0 PID: 153 Comm: mount Not tainted 4.17.0-rc4-dirty #4
Hardware name: Marvell Armada 370/XP (Device Tree)
[<c010d8f4>] (unwind_backtrace) from [<c010b350>] (show_stack+0x10/0x14)
[<c010b350>] (show_stack) from [<c0271cc4>] (ubifs_leb_write+0x12c/0x130)
[<c0271cc4>] (ubifs_leb_write) from [<c027331c>] 
(ubifs_write_node+0xb8/0x1b4)
[<c027331c>] (ubifs_write_node) from [<c0278e6c>] 
(ubifs_write_master+0xbc/0x150)
[<c0278e6c>] (ubifs_write_master) from [<c0270020>] 
(ubifs_mount+0xfc8/0x14ac)
[<c0270020>] (ubifs_mount) from [<c01a8c78>] (mount_fs+0x14/0xa4)
[<c01a8c78>] (mount_fs) from [<c01c088c>] (vfs_kern_mount+0x48/0xd8)
[<c01c088c>] (vfs_kern_mount) from [<c01c33d0>] (do_mount+0x174/0xac4)
[<c01c33d0>] (do_mount) from [<c01c4080>] (ksys_mount+0x8c/0xbc)
[<c01c4080>] (ksys_mount) from [<c0101000>] (ret_fast_syscall+0x0/0x54)
Exception stack(0xceb15fa8 to 0xceb15ff0)
5fa0:                   00000000 befedc80 befedfae befedfba befedfa8 
00008000
5fc0: 00000000 befedc80 b6f3b4a0 00000015 00000000 00000000 b6f3df74 
00065704
5fe0: b6ec2d18 befedb8c 0002aa60 b6ec2d28
CPU: 0 PID: 153 Comm: mount Not tainted 4.17.0-rc4-dirty #4
Hardware name: Marvell Armada 370/XP (Device Tree)
[<c010d8f4>] (unwind_backtrace) from [<c010b350>] (show_stack+0x10/0x14)
[<c010b350>] (show_stack) from [<c0271cb0>] (ubifs_leb_write+0x118/0x130)
[<c0271cb0>] (ubifs_leb_write) from [<c027331c>] 
(ubifs_write_node+0xb8/0x1b4)
[<c027331c>] (ubifs_write_node) from [<c0278e6c>] 
(ubifs_write_master+0xbc/0x150)
[<c0278e6c>] (ubifs_write_master) from [<c0270020>] 
(ubifs_mount+0xfc8/0x14ac)
[<c0270020>] (ubifs_mount) from [<c01a8c78>] (mount_fs+0x14/0xa4)
[<c01a8c78>] (mount_fs) from [<c01c088c>] (vfs_kern_mount+0x48/0xd8)
[<c01c088c>] (vfs_kern_mount) from [<c01c33d0>] (do_mount+0x174/0xac4)
[<c01c33d0>] (do_mount) from [<c01c4080>] (ksys_mount+0x8c/0xbc)
[<c01c4080>] (ksys_mount) from [<c0101000>] (ret_fast_syscall+0x0/0x54)
Exception stack(0xceb15fa8 to 0xceb15ff0)
5fa0:                   00000000 befedc80 befedfae befedfba befedfa8 
00008000
5fc0: 00000000 befedc80 b6f3b4a0 00000015 00000000 00000000 b6f3df74 
00065704
5fe0: b6ec2d18 befedb8c 0002aa60 b6ec2d28
	magic          0x6101831
	crc            0x3d983859
	node_type      7 (master node)
	group_type     0 (no node group)
	sqnum          21756
	len            512
	highest_inum   515
	commit number  638
	flags          0x3
	log_lnum       5
	root_lnum      11
	root_offs      126096
	root_len       88
	gc_lnum        13
	ihead_lnum     11
	ihead_offs     126976
	index_size     1672
	lpt_lnum       6
	lpt_offs       36921
	nhead_lnum     6
	nhead_offs     38912
	ltab_lnum      6
	ltab_offs      36864
	lsave_lnum     0
	lsave_offs     0
	lscan_lnum     29
	leb_cnt        34
	empty_lebs     16
	idx_lebs       2
	total_free     2314240
	total_dirty    720136
	total_used     11376
	total_dead     0
	total_dark     135168
UBIFS (ubi0:1): background thread "ubifs_bgt0_1" stops


The driver init during boot up looked good:

nand: device found, Manufacturer ID: 0x01, Chip ID: 0xf1
nand: AMD/Spansion S34ML01G1
nand: 128 MiB, SLC, erase size: 128 KiB, page size: 2048, OOB size: 64
Bad block table found at page 65472, version 0x01
Bad block table found at page 65408, version 0x01
5 fixed-partitions partitions found on MTD device pxa3xx_nand-0
Creating 5 MTD partitions on "pxa3xx_nand-0":
0x000000000000-0x000000200000 : "u-boot"
0x000000200000-0x000000300000 : "u-boot-env"
0x000000300000-0x000000500000 : "log"
0x000000500000-0x000008000000 : "flash"
0x000000000000-0x000008000000 : "all"


The kernel dump is not fatal, and I can still use the system.
I can dd all the flash, and otherwise use the flash and that all
seems to work ok. And interestingly if I try to mount that UBIFS
again at the command line then it succeeds and I can see the files
within it properly.

Any ideas?

Regards
Greg

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