panic on blackfin, serial driver bug or hardware glitch?
From: Denys Fedoryshchenko
Date: Thu Jun 26 2008 - 04:45:03 EST
After adding to initramfs just one more file (this file doesn't affect init process at all) got panic.
I am not sure it is hardware failure(it is not standard board), but before i was not getting anything like this. Maybe bug in blackfin serial driver?
Kernel is 2.6.27-rc7
[42949373.800000] partitions[1] = {.name = kernel, .offset = 0x00000000ffffffff, .size = 0x00000000200000 (2048KiB) }
[42949373.810000] partitions[2] = {.name = file system, .offset = 0x00000000ffffffff, .size = 0x00000000 (0KiB) }
[42949373.820000] Creating 3 MTD partitions on "m25p80":
[42949373.820000] 0x00000000-0x0000000040000 : "bootloader"
[42949373.830000] mtd: partition "bootloader" doesn't end on an erase block -- force read-only
[42949373.840000] mtd: Giving out device 0 to bootloader
[42949373.840000] spi0.2: m25p80_read from 0x00000000, len 68
[42949373.850000] ftl_cs: FTL header corrupt!
[42949373.850000] 0x0000000040000-0x00000000240000 : "kernel"
[42949373.860000] mtd: partition "kernel" doesn't start on an erase block boundary -- force read-only
[42949373.870000] mtd: Giving out device 1 to kernel
[42949373.870000] spi0.2: m25p80_read from 0x0000000040000, len 68
[42949373.880000] spi0.2: m25p80_read from 0x00000000c0000, len 68
[42949373.880000] ftl_cs: FTL header not found.
[42949373.890000] 0x00000000240000-0x000000004000000 : "file system"
[42949373.900000] mtd: partition "file system" doesn't start on an erase block boundary -- force read-only
[42949373.910000] mtd: Giving out device 2 to file system
[42949373.910000] spi0.2: m25p80_read from 0x00000000240000, len 68
[42949373.920000] spi0.2: m25p80_read from 0x000000002c0000, len 68
[42949373.930000] ftl_cs: FTL header not found.
[42949373.930000] bfin-spi bfin-spi.0: Blackfin BF5xx on-chip SPI Controller Driver, Version 1.0, regs_base@00000000ffc00500, dma channel@5
[42949373.940000] rtc-bfin rtc-bfin: rtc core: registered rtc-bfin as rtc0
[42949373.950000] rtc-bfin rtc-bfin: setting system clock to 2031-07-28 00:48:45 UTC (1942966125)
[42949373.960000] Freeing unused kernel memory: 864k freed
[42949373.970000] dma_alloc_init: dma_page @ 0x00000000122000 - 256 pages at 0x000000001f00000
#[42949375.450000] NULL pointer access
[42949375.450000] Deferred Exception context
[42949375.450000] CURRENT PROCESS:
[42949375.450000] COMM=linuxrc PID=26
[42949375.450000] TEXT = 0x00000000180000-0x000000001b8b3c DATA = 0x000000001df4b3c-0x000000001df7ce8
[42949375.450000] BSS = 0x000000001df7ce8-0x000000001c20000 USER-STACK = 0x000000001c3fef0
[42949375.450000]
[42949375.450000] return address: [0x000000001f3da2]; contents of:
[42949375.450000] 0x000000001f3d80: 00000000c07 00000000185a 00000000321c 00000000a2f9 00000000b0f1 00000000ce82 000000008027 00000000a23a
[42949375.450000] 0x000000001f3d90: 0000 000000005005 00000000300e 00000000e3ff 00000000eb17 00000000c00 000000003010 000000001fed
[42949375.450000] 0x000000001f3da0: 000000003212 [00000000e490] 00000000c 000000004e20 0000000067f8 00000000e08 00000000143d 00000000af3b
[42949375.450000] 0x000000001f3db0: 00000000c43 000000001802 00000000935c 00000000a2f8 00000000c80 000000001887 0000 00000000320a
[42949375.450000]
[42949375.450000] SEQUENCER STATUS:Not tainted
[42949375.450000] SEQSTAT: 0000000062027 IPEND: 0000000030 SYSCFG: 000000006
[42949375.450000] HWERRCAUSE: 0x0000000018
[42949375.450000] EXCAUSE : 0x0000000027
[42949375.450000] RETE: <0x00000000> /* Maybe null pointer? */
[42949375.450000] RETN: <0x000000001e8000> { ___con_initcall_end + 0x00000000b7b14 }
[42949375.450000] RETX: <0x00000000480> /* Maybe fixed code section */
[42949375.450000] RETS: <0x000000001f3d9a> { ___con_initcall_end + 0x00000000c38ae }
[42949375.450000] PC : <0x000000001f3da2> { ___con_initcall_end + 0x00000000c38b6 }
[42949375.450000] DCPLB_FAULT_ADDR: <0x00000000c> /* Maybe null pointer? */
[42949375.450000] ICPLB_FAULT_ADDR: <0x000000001f3da2> { ___con_initcall_end + 0x00000000c38b6 }
[42949375.450000]
[42949375.450000] PROCESSOR STATE:
[42949375.450000] R0 : 00000000 R1 : 000000006d R2 : 00000000 R3 : 00000000184d21
[42949375.450000] R4 : 00000000130f78 R5 : 0000000018148c R6 : 0000000018416c R7 : 000000006d
[42949375.450000] P0 : 00000000184d22 P1 : 000000001846fc P2 : 00000000 P3 : 00000000130f78
[42949375.450000] P4 : 00000000136028 P5 : 00000000180130 FP : 000000001c3f9cc SP : 000000001e7f24
[42949375.450000] LB0: 000000001f6181 LT0: 000000001f6174 LC0: 00000000
[42949375.450000] LB1: 000000001f4ec7 LT1: 000000001f4ec6 LC1: 00000000
[42949375.450000] B0 : 00000000 L0 : 00000000 M0 : 00000000 I0 : 00000000b928
[42949375.450000] B1 : 00000000 L1 : 00000000 M1 : 00000000 I1 : 00000000136154
[42949375.450000] B2 : 00000000 L2 : 00000000 M2 : 00000000 I2 : 00000000
[42949375.450000] B3 : 00000000 L3 : 00000000 M3 : 00000000 I3 : 00000000
[42949375.450000] A0.w: 00000000 A0.x: 00000000 A1.w: 00000000 A1.x: 00000000
[42949375.450000] USP : 000000001c3f994 ASTAT: 000000002003005
[42949375.450000]
[42949375.450000] Hardware Trace:
[42949375.450000] 0 Target : <0x000000003f10> { _trap_c + 0x0 }
[42949375.450000] Source : <0x00000000ffa00450> /* unknown address */
[42949375.450000] 1 Target : <0x00000000ffa003b4> /* unknown address */
[42949375.450000] Source : <0x00000000ffa0030a> /* unknown address */
[42949375.450000] 2 Target : <0x00000000ffa00298> /* unknown address */
[42949375.450000] Source : <0x00000000ffa004d8> /* unknown address */
[42949375.450000] 3 Target : <0x00000000ffa004b0> /* unknown address */
[42949375.450000] Source : <0x000000001f3da0> { ___con_initcall_end + 0x00000000c38b4 }
[42949375.450000] 4 Target : <0x000000001f3d9a> { ___con_initcall_end + 0x00000000c38ae }
[42949375.450000] Source : <0x000000001f13e2> { ___con_initcall_end + 0x00000000c0ef6 }
[42949375.450000] 5 Target : <0x000000001f13da> { ___con_initcall_end + 0x00000000c0eee }
[42949375.450000] Source : <0x000000001f141e> { ___con_initcall_end + 0x00000000c0f32 }
[42949375.450000] 6 Target : <0x000000001f1406> { ___con_initcall_end + 0x00000000c0f1a }
[42949375.450000] Source : <0x000000001f1416> { ___con_initcall_end + 0x00000000c0f2a }
[42949375.450000] 7 Target : <0x000000001f13e4> { ___con_initcall_end + 0x00000000c0ef8 }
[42949375.450000] Source : <0x000000001f13d8> { ___con_initcall_end + 0x00000000c0eec }
[42949375.450000] 8 Target : <0x000000001f13c4> { ___con_initcall_end + 0x00000000c0ed8 }
[42949375.450000] Source : <0x000000001f3d96> { ___con_initcall_end + 0x00000000c38aa }
[42949375.450000] 9 Target : <0x000000001f3d78> { ___con_initcall_end + 0x00000000c388c }
[42949375.450000] Source : <0x000000001f3d9e> { ___con_initcall_end + 0x00000000c38b2 }
[42949375.450000] 10 Target : <0x000000001f3d9a> { ___con_initcall_end + 0x00000000c38ae }
[42949375.450000] Source : <0x000000001f13e2> { ___con_initcall_end + 0x00000000c0ef6 }
[42949375.450000] 11 Target : <0x000000001f13da> { ___con_initcall_end + 0x00000000c0eee }
[42949375.450000] Source : <0x000000001f141e> { ___con_initcall_end + 0x00000000c0f32 }
[42949375.450000] 12 Target : <0x000000001f1406> { ___con_initcall_end + 0x00000000c0f1a }
[42949375.450000] Source : <0x000000001f1416> { ___con_initcall_end + 0x00000000c0f2a }
[42949375.450000] 13 Target : <0x000000001f13e4> { ___con_initcall_end + 0x00000000c0ef8 }
[42949375.450000] Source : <0x000000001f13d8> { ___con_initcall_end + 0x00000000c0eec }
[42949375.450000] 14 Target : <0x000000001f13c4> { ___con_initcall_end + 0x00000000c0ed8 }
[42949375.450000] Source : <0x000000001f3d96> { ___con_initcall_end + 0x00000000c38aa }
[42949375.450000] 15 Target : <0x000000001f3d78> { ___con_initcall_end + 0x00000000c388c }
[42949375.450000] Source : <0x000000001f3d9e> { ___con_initcall_end + 0x00000000c38b2 }
[42949375.450000] Stack from 000000001e7efc:
[42949375.450000] 00000000 00000000ffa00610 000000001c3f9cc 00000000ffa00454 00000000ffa009b4 000000006d 00000000ffff 000000002
[42949375.450000] 00000000130f78 000000001f518c 00000000480 0000000030 0000000062027 00000000 000000001e8000 00000000480
[42949375.450000] 000000001f3da2 000000001f3d9a 00000000 000000002003005 000000001f4ec7 000000001f6181 000000001f4ec6 000000001f6174
[42949375.450000] 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[42949375.450000] 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[42949375.450000] 00000000 00000000 00000000 00000000 00000000136154 00000000b928 000000001c3f994 000000001c3f9cc
[42949375.450000]
[42949375.450000] Call Trace:
[42949375.450000]
[42949375.450000]
[42949375.450000] Double Fault
[42949375.450000] Kernel OOPS in progress
[42949375.450000] Deferred Exception context
[42949375.450000] CURRENT PROCESS:
[42949375.450000] COMM=linuxrc PID=26
[42949375.450000] TEXT = 0x00000000180000-0x000000001b8b3c DATA = 0x000000001df4b3c-0x000000001df7ce8
[42949375.450000] BSS = 0x000000001df7ce8-0x000000001c20000 USER-STACK = 0x000000001c3fef0
[42949375.450000]
[42949375.450000] return address: [0x000000001c3fab4]; contents of:
[42949375.450000] 0x000000001c3fa90: 00000000416c 0000000018 00000000148c 0000000018 00000000a9 0000 00000000fad0 000000001c3
[42949375.450000] 0x000000001c3faa0: 000000001bac 000000001f 000000006028 0000000013 000000006120 0000000013 0000 0000
[42949375.450000] 0x000000001c3fab0: 0000 0000 [000000001250] 0000000013 00000000f78 0000000013 000000006028 0000000013
[42949375.450000] 0x000000001c3fac0: 000000006120 0000000013 000000001bee 000000001f 00000000548 0000 00000000f60 0000000013
[42949375.450000]
[42949375.450000] SEQUENCER STATUS:Not tainted
[42949375.450000] SEQSTAT: 0000000062021 IPEND: 00000000480 SYSCFG: 000000006
[42949375.450000] HWERRCAUSE: 0x0000000018
[42949375.450000] EXCAUSE : 0x0000000021
[42949375.450000] physical IVG7 asserted : <0x00000000ffa00ac0> /* unknown address */
[42949375.450000] physical IVG10 asserted : <0x00000000ffa00ae4> /* unknown address */
[42949375.450000] logical irq 6 mapped : <0x00000000aaab4> { _timer_interrupt + 0x0 }
[42949375.450000] logical irq 21 mapped : <0x0000000088fa0> { _bfin_serial_dma_rx_int + 0x0 }
[42949375.450000] logical irq 22 mapped : <0x0000000088f10> { _bfin_serial_dma_tx_int + 0x0 }
[42949375.450000] RETE: <0x00000000> /* Maybe null pointer? */
[42949375.450000] RETN: <0x000000001e7f14> { ___con_initcall_end + 0x00000000b7a28 }
[42949375.450000] RETX: <0x000000001c3fab4> [ linuxrc + 0x000000001fab4 ]
[42949375.450000] RETS: <0x000000001c3f9cc> [ linuxrc + 0x000000001f9cc ]
[42949375.450000] PC : <0x000000001c3fab4> [ linuxrc + 0x000000001fab4 ]
[42949375.450000] DCPLB_FAULT_ADDR: <0x00000000c> /* Maybe null pointer? */
[42949375.450000] ICPLB_FAULT_ADDR: <0x000000001f3da2> { ___con_initcall_end + 0x00000000c38b6 }
[42949375.450000]
[42949375.450000] PROCESSOR STATE:
[42949375.450000] R0 : 00000000 R1 : 00000000ffffffcd R2 : 00000000 R3 : 00000000
[42949375.450000] R4 : 00000000130f78 R5 : 00000000100d R6 : 000000006d R7 : 00000000ffa009b4
[42949375.450000] P0 : 000000001de329c P1 : 000000001cb28a0 P2 : 00000000ffe06000 P3 : 00000000130f78
[42949375.450000] P4 : 00000000ffe02014 P5 : 00000000ffa00454 FP : 00000000ffa00615 SP : 000000001e7e38
[42949375.450000] LB0: 00000000ffa0106a LT0: 00000000ffa0106a LC0: 00000000
[42949375.450000] LB1: 000000001f4ec7 LT1: 000000001f4ec6 LC1: 00000000
[42949375.450000] B0 : 00000000 L0 : 00000000 M0 : 00000000 I0 : 000000001e7d8c
[42949375.450000] B1 : 00000000 L1 : 00000000 M1 : 00000000 I1 : 000000001e7e9c
[42949375.450000] B2 : 00000000 L2 : 00000000 M2 : 00000000 I2 : 00000000ffff8bc9
[42949375.450000] B3 : 00000000 L3 : 00000000 M3 : 00000000 I3 : 00000000
[42949375.450000] A0.w: 00000000 A0.x: 00000000 A1.w: 00000000 A1.x: 00000000
[42949375.450000] USP : 000000001c3f994 ASTAT: 000000002003004
[42949375.450000]
[42949375.450000] Kernel panic - not syncing: Double Fault - unrecoverable event
[42949375.450000]
[42949375.450000] Rebooting in 10 seconds..
--
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Technical Manager
Virtual ISP S.A.L.
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