topic Re: Kgdbwait into wait state, but GDB timeout, can not connect in i.MX Processors

Kgdbwait into wait state, but GDB timeout, can not connect

fatalfeel — Tue, 20 Oct 2015 02:16:02 GMT

on i.mx6 dual

~# echo g > /proc/sysrq-trigger work good

but Kgdbwait into wait state, but GDB can not connect

of course I exit the mincom~ also try to use

git://git.kernel.org/pub/scm/utils/kernel/kgdb/agent-proxy.git

still can not work

/////gdb message

174,060 &"symbol-file /root/project_board/free_imx/out/matrix_io/kernel/vmlinux\n"

174,060 ~"Reading symbols from /root/project_board/free_imx/out/matrix_io/kernel/vmlinux..."

174,118 12-list-thread-groups

175,042 ~"done.\n"

175,044 11^done

175,044 (gdb)

175,044 &"\n"

175,045 ^done

175,045 (gdb)

175,045 12^done,groups=[{id="i1",type="process"}]

175,045 (gdb)

175,046 13-target-select remote /dev/ttyUSB0

196,053 ~"Ignoring packet error, continuing...\n"

196,053 &"warning: unrecognized item \"timeout\" in \"qSupported\" response\n"

/////bootargs message

boot

booti mmc1

kernel @ 14008000 (9372264)

ramdisk @ 15000000 (507162)

fdt @ 14f00000 (55103)

kernel cmdline:

use boot.img command line:

kgdboc=ttymxc0,115200 kgdbwait init=/init video=mxcfb0:dev=ldb,bpp=32 video=mxcfb1:dev=hdmi,1920x1080M@60,if=RGB24,bpp=32 video=mxcfb2:off video=mxcfb3:off vmalloc=400M androidboot.console=ttymxc0 consoleblank=0 androidboot.hardware=freescale cma=384M mem=1G

switch to ldo_bypass mode!

Using Device Tree in place at 14f00000, end 14f1073e

Starting kernel ...

/////kernel boot message

2.336547] calling sched_clock_syscore_init+0x0/0x24 @ 1

[ 2.336580] initcall sched_clock_syscore_init+0x0/0x24 returned 0 after 2 usecs

[ 2.336596] Doing 0

[ 2.336623] calling register_pmu_driver+0x0/0x6c @ 1

[ 2.336974] hw perfevents: enabled with ARMv7 Cortex-A9 PMU driver, 7 counters available

[ 2.338491] initcall register_pmu_driver+0x0/0x6c returned 0 after 1789 usecs

[ 2.338512] Doing 1

[ 2.338542] calling mxc_epit_driver_init+0x0/0x24 @ 1

[ 2.339437] initcall mxc_epit_driver_init+0x0/0x24 returned 0 after 843 usecs

[ 2.339458] Doing 2

[ 2.339485] calling ldo2p5_dummy_driver_init+0x0/0x24 @ 1

[ 2.340766] initcall ldo2p5_dummy_driver_init+0x0/0x24 returned 0 after 1222 usecs

[ 2.340786] Doing 3

[ 2.340811] calling busfreq_init+0x0/0x44 @ 1

[ 2.341551] imx6_busfreq busfreq.16: DDR medium rate not supported.

[ 2.342400] Bus freq driver module loaded

[ 2.342437] initcall busfreq_init+0x0/0x44 returned 0 after 1557 usecs

[ 2.342453] Doing 4

[ 2.342479] calling mxc_bt_rfkill_driver_init+0x0/0x24 @ 1

[ 2.342991] initcall mxc_bt_rfkill_driver_init+0x0/0x24 returned 0 after 470 usecs

[ 2.343009] Doing 5

[ 2.343035] calling mx6_ir_driver_init+0x0/0x24 @ 1

[ 2.343503] initcall mx6_ir_driver_init+0x0/0x24 returned 0 after 427 usecs

[ 2.343520] Doing 6

[ 2.343545] calling mxc_ramoops_driver_init+0x0/0x24 @ 1

[ 2.353513] console [pstore-1] enabled

[ 2.353540] ramoops: attached 0x100000@0x4bf00000, ecc: 0/0

[ 2.353578] mxc_ramoops device success loaded

[ 2.353730] initcall mxc_ramoops_driver_init+0x0/0x24 returned 0 after 9909 usecs

[ 2.353752] Doing 7

[ 2.353785] calling proc_execdomains_init+0x0/0x68 @ 1

[ 2.353844] initcall proc_execdomains_init+0x0/0x68 returned 0 after 23 usecs

[ 2.353862] Doing 8

[ 2.353892] calling ioresources_init+0x0/0xb0 @ 1

[ 2.353951] initcall ioresources_init+0x0/0xb0 returned 0 after 26 usecs

[ 2.353971] Doing 9

[ 2.354000] calling uid_cache_init+0x0/0x104 @ 1

[ 2.354063] initcall uid_cache_init+0x0/0x104 returned 0 after 28 usecs

[ 2.354082] Doing 10

[ 2.354114] calling init_posix_timers+0x0/0x538 @ 1

[ 2.354242] initcall init_posix_timers+0x0/0x538 returned 0 after 88 usecs

[ 2.354342] Doing 11

[ 2.354379] calling init_posix_cpu_timers+0x0/0x200 @ 1

[ 2.354418] initcall init_posix_cpu_timers+0x0/0x200 returned 0 after 1 usecs

[ 2.354436] Doing 12

[ 2.354468] calling proc_schedstat_init+0x0/0x68 @ 1

[ 2.354522] initcall proc_schedstat_init+0x0/0x68 returned 0 after 18 usecs

[ 2.354542] Doing 13

[ 2.354573] calling android_power_init+0x0/0x98 @ 1

[ 2.354632] initcall android_power_init+0x0/0x98 returned 0 after 24 usecs

[ 2.354651] Doing 14

[ 2.354684] calling suspend_time_syscore_init+0x0/0x2c @ 1

[ 2.354716] initcall suspend_time_syscore_init+0x0/0x2c returned 0 after 2 usecs

[ 2.354735] Doing 15

[ 2.354765] calling timekeeping_init_ops+0x0/0x24 @ 1

[ 2.354799] initcall timekeeping_init_ops+0x0/0x24 returned 0 after 1 usecs

[ 2.354817] Doing 16

[ 2.354847] calling init_clocksource_sysfs+0x0/0x98 @ 1

[ 2.355254] initcall init_clocksource_sysfs+0x0/0x98 returned 0 after 356 usecs

[ 2.355277] Doing 17

[ 2.355309] calling init_timer_list_procfs+0x0/0x84 @ 1

[ 2.355364] initcall init_timer_list_procfs+0x0/0x84 returned 0 after 15 usecs

[ 2.355385] Doing 18

[ 2.355416] calling alarmtimer_init+0x0/0x380 @ 1

[ 2.356013] initcall alarmtimer_init+0x0/0x380 returned 0 after 541 usecs

[ 2.356037] Doing 19

[ 2.356069] calling init_tstats_procfs+0x0/0x84 @ 1

[ 2.356126] initcall init_tstats_procfs+0x0/0x84 returned 0 after 17 usecs

[ 2.356147] Doing 20

[ 2.356175] calling futex_init+0x0/0x214 @ 1

[ 2.356351] futex hash table entries: 512 (order: 3, 32768 bytes)

[ 2.356441] initcall futex_init+0x0/0x214 returned 0 after 219 usecs

[ 2.356460] Doing 21

[ 2.356489] calling proc_modules_init+0x0/0x68 @ 1

[ 2.356539] initcall proc_modules_init+0x0/0x68 returned 0 after 17 usecs

[ 2.356560] Doing 22

[ 2.356586] calling kallsyms_init+0x0/0x68 @ 1

[ 2.356628] initcall kallsyms_init+0x0/0x68 returned 0 after 13 usecs

[ 2.356650] Doing 23

[ 2.356676] calling audit_init+0x0/0x2ac @ 1

[ 2.356697] audit: initializing netlink socket (disabled)

[ 2.356786] type=2000 audit(2.270:1): initialized

[ 2.356832] initcall audit_init+0x0/0x2ac returned 0 after 120 usecs

[ 2.356850] Doing 24

[ 2.356877] calling audit_watch_init+0x0/0x80 @ 1

[ 2.356913] initcall audit_watch_init+0x0/0x80 returned 0 after 7 usecs

[ 2.356930] Doing 25

[ 2.356955] calling audit_tree_init+0x0/0xc4 @ 1

[ 2.356991] initcall audit_tree_init+0x0/0xc4 returned 0 after 7 usecs

[ 2.357010] Doing 26

[ 2.357035] calling init_kprobes+0x0/0x1cc @ 1

[ 2.794178] initcall init_kprobes+0x0/0x1cc returned 0 after 426854 usecs

[ 2.794209] Doing 27

[ 2.794238] calling irq_gc_init_ops+0x0/0x24 @ 1

[ 2.794321] initcall irq_gc_init_ops+0x0/0x24 returned 0 after 1 usecs

[ 2.794343] Doing 28

[ 2.794370] calling irq_pm_init_ops+0x0/0x24 @ 1

[ 2.794401] initcall irq_pm_init_ops+0x0/0x24 returned 0 after 1 usecs

[ 2.794419] Doing 29

[ 2.794448] calling utsname_sysctl_init+0x0/0x24 @ 1

[ 2.794526] initcall utsname_sysctl_init+0x0/0x24 returned 0 after 45 usecs

[ 2.794547] Doing 30

[ 2.794582] calling init_tracepoints+0x0/0x2c @ 1

[ 2.794615] initcall init_tracepoints+0x0/0x2c returned 0 after 1 usecs

[ 2.794634] Doing 31

[ 2.794661] calling stack_trace_init+0x0/0xf8 @ 1

[ 2.794777] initcall stack_trace_init+0x0/0xf8 returned 0 after 80 usecs

[ 2.794800] Doing 32

[ 2.794832] calling irq_work_init_cpu_notifier+0x0/0x48 @ 1

[ 2.794872] initcall irq_work_init_cpu_notifier+0x0/0x48 returned 0 after 7 usecs

[ 2.794890] Doing 33

[ 2.794917] calling perf_event_sysfs_init+0x0/0x148 @ 1

[ 2.795692] initcall perf_event_sysfs_init+0x0/0x148 returned 0 after 718 usecs

[ 2.795719] Doing 34

[ 2.795752] calling init_per_zone_wmark_min+0x0/0xac @ 1

[ 2.797220] initcall init_per_zone_wmark_min+0x0/0xac returned 0 after 1392 usecs

[ 2.797247] Doing 35

[ 2.797281] calling kswapd_init+0x0/0x58 @ 1

[ 2.797913] initcall kswapd_init+0x0/0x58 returned 0 after 575 usecs

[ 2.797940] Doing 36

[ 2.797970] calling extfrag_debug_init+0x0/0xc4 @ 1

[ 2.798081] initcall extfrag_debug_init+0x0/0xc4 returned 0 after 75 usecs

[ 2.798105] Doing 37

[ 2.798139] calling setup_vmstat+0x0/0x1c8 @ 1

[ 2.798244] initcall setup_vmstat+0x0/0x1c8 returned 0 after 69 usecs

[ 2.798265] Doing 38

[ 2.798293] calling mm_sysfs_init+0x0/0x60 @ 1

[ 2.798352] initcall mm_sysfs_init+0x0/0x60 returned 0 after 26 usecs

[ 2.798372] Doing 39

[ 2.798404] calling init_reserve_notifier+0x0/0x30 @ 1

[ 2.798437] initcall init_reserve_notifier+0x0/0x30 returned 0 after 1 usecs

[ 2.798454] Doing 40

[ 2.798486] calling init_admin_reserve+0x0/0xac @ 1

[ 2.798518] initcall init_admin_reserve+0x0/0xac returned 0 after 2 usecs

[ 2.798536] Doing 41

[ 2.798562] calling init_user_reserve+0x0/0xac @ 1

[ 2.798596] initcall init_user_reserve+0x0/0xac returned 0 after 1 usecs

[ 2.798613] Doing 42

[ 2.798643] calling proc_vmalloc_init+0x0/0x68 @ 1

[ 2.798693] initcall proc_vmalloc_init+0x0/0x68 returned 0 after 15 usecs

[ 2.798712] Doing 43

[ 2.798743] calling memblock_init_debugfs+0x0/0x98 @ 1

[ 2.798845] initcall memblock_init_debugfs+0x0/0x98 returned 0 after 63 usecs

[ 2.798864] Doing 44

[ 2.798895] calling init_emergency_pool+0x0/0xbc @ 1

[ 2.798930] initcall init_emergency_pool+0x0/0xbc returned 0 after 2 usecs

[ 2.798950] Doing 45

[ 2.798980] calling procswaps_init+0x0/0x68 @ 1

[ 2.799029] initcall procswaps_init+0x0/0x68 returned 0 after 15 usecs

[ 2.799049] Doing 46

[ 2.799076] calling ksm_init+0x0/0x11c @ 1

[ 2.799455] initcall ksm_init+0x0/0x11c returned 0 after 327 usecs

[ 2.799476] Doing 47

[ 2.799510] calling slab_sysfs_init+0x0/0x1c4 @ 1

[ 2.809432] initcall slab_sysfs_init+0x0/0x1c4 returned 0 after 9642 usecs

[ 2.809456] Doing 48

[ 2.809488] calling fcntl_init+0x0/0x50 @ 1

[ 2.809549] initcall fcntl_init+0x0/0x50 returned 0 after 25 usecs

[ 2.809570] Doing 49

[ 2.809597] calling proc_filesystems_init+0x0/0x68 @ 1

[ 2.809652] initcall proc_filesystems_init+0x0/0x68 returned 0 after 21 usecs

[ 2.809673] Doing 50

[ 2.809701] calling dio_init+0x0/0x50 @ 1

[ 2.809997] initcall dio_init+0x0/0x50 returned 0 after 258 usecs

[ 2.810017] Doing 51

[ 2.810045] calling fsnotify_mark_init+0x0/0x9c @ 1

[ 2.810330] initcall fsnotify_mark_init+0x0/0x9c returned 0 after 242 usecs

[ 2.810353] Doing 52

[ 2.810378] calling dnotify_init+0x0/0xd0 @ 1

[ 2.810753] initcall dnotify_init+0x0/0xd0 returned 0 after 330 usecs

[ 2.810774] Doing 53

[ 2.810804] calling inotify_user_setup+0x0/0xb0 @ 1

[ 2.810874] initcall inotify_user_setup+0x0/0xb0 returned 0 after 39 usecs

[ 2.810896] Doing 54

[ 2.810920] calling aio_setup+0x0/0x8c @ 1

[ 2.810993] initcall aio_setup+0x0/0x8c returned 0 after 41 usecs

[ 2.811012] Doing 55

[ 2.811040] calling proc_locks_init+0x0/0x68 @ 1

[ 2.811091] initcall proc_locks_init+0x0/0x68 returned 0 after 20 usecs

[ 2.811110] Doing 56

[ 2.811136] calling init_mbcache+0x0/0x24 @ 1

[ 2.811172] initcall init_mbcache+0x0/0x24 returned 0 after 5 usecs

[ 2.811189] Doing 57

[ 2.811214] calling dquot_init+0x0/0x248 @ 1

[ 2.811234] VFS: Disk quotas dquot_6.5.2

[ 2.812017] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)

[ 2.812056] initcall dquot_init+0x0/0x248 returned 0 after 791 usecs

[ 2.812075] Doing 58

[ 2.812100] calling quota_init+0x0/0x58 @ 1

[ 2.812174] initcall quota_init+0x0/0x58 returned 0 after 41 usecs

[ 2.812195] Doing 59

[ 2.812221] calling proc_cmdline_init+0x0/0x68 @ 1

[ 2.812271] initcall proc_cmdline_init+0x0/0x68 returned 0 after 17 usecs

[ 2.812290] Doing 60

[ 2.812317] calling proc_consoles_init+0x0/0x68 @ 1

[ 2.812361] initcall proc_consoles_init+0x0/0x68 returned 0 after 14 usecs

[ 2.812381] Doing 61

[ 2.812408] calling proc_cpuinfo_init+0x0/0x68 @ 1

[ 2.812452] initcall proc_cpuinfo_init+0x0/0x68 returned 0 after 14 usecs

[ 2.812471] Doing 62

[ 2.812497] calling proc_devices_init+0x0/0x68 @ 1

[ 2.812542] initcall proc_devices_init+0x0/0x68 returned 0 after 13 usecs

[ 2.812562] Doing 63

[ 2.812588] calling proc_interrupts_init+0x0/0x68 @ 1

[ 2.812632] initcall proc_interrupts_init+0x0/0x68 returned 0 after 13 usecs

[ 2.812651] Doing 64

[ 2.812678] calling proc_loadavg_init+0x0/0x68 @ 1

[ 2.812723] initcall proc_loadavg_init+0x0/0x68 returned 0 after 14 usecs

[ 2.812744] Doing 65

[ 2.812769] calling proc_meminfo_init+0x0/0x68 @ 1

[ 2.812816] initcall proc_meminfo_init+0x0/0x68 returned 0 after 14 usecs

[ 2.812836] Doing 66

[ 2.812864] calling proc_stat_init+0x0/0x68 @ 1

[ 2.812943] initcall proc_stat_init+0x0/0x68 returned 0 after 45 usecs

[ 2.812963] Doing 67

[ 2.812991] calling proc_uptime_init+0x0/0x68 @ 1

[ 2.813038] initcall proc_uptime_init+0x0/0x68 returned 0 after 14 usecs

[ 2.813058] Doing 68

[ 2.813086] calling proc_version_init+0x0/0x68 @ 1

[ 2.813133] initcall proc_version_init+0x0/0x68 returned 0 after 14 usecs

[ 2.813151] Doing 69

[ 2.813179] calling proc_softirqs_init+0x0/0x68 @ 1

[ 2.813224] initcall proc_softirqs_init+0x0/0x68 returned 0 after 14 usecs

[ 2.813243] Doing 70

[ 2.813270] calling proc_kmsg_init+0x0/0x68 @ 1

[ 2.813317] initcall proc_kmsg_init+0x0/0x68 returned 0 after 14 usecs

[ 2.813336] Doing 71

[ 2.813361] calling proc_page_init+0x0/0xb0 @ 1

[ 2.813419] initcall proc_page_init+0x0/0xb0 returned 0 after 27 usecs

[ 2.813438] Doing 72

[ 2.813463] calling configfs_init+0x0/0x148 @ 1

[ 2.814148] initcall configfs_init+0x0/0x148 returned 0 after 632 usecs

[ 2.814170] Doing 73

[ 2.814199] calling init_devpts_fs+0x0/0xc0 @ 1

[ 2.814753] initcall init_devpts_fs+0x0/0xc0 returned 0 after 504 usecs

[ 2.814776] Doing 74

[ 2.814807] calling init_ext3_fs+0x0/0x88 @ 1

[ 2.815359] initcall init_ext3_fs+0x0/0x88 returned 0 after 504 usecs

[ 2.815381] Doing 75

[ 2.815410] calling init_ext2_fs+0x0/0x88 @ 1

[ 2.815691] initcall init_ext2_fs+0x0/0x88 returned 0 after 243 usecs

[ 2.815714] Doing 76

[ 2.815748] calling ext4_init_fs+0x0/0x298 @ 1

[ 2.817225] initcall ext4_init_fs+0x0/0x298 returned 0 after 1402 usecs

[ 2.817248] Doing 77

[ 2.817281] calling journal_init+0x0/0x38 @ 1

[ 2.817873] initcall journal_init+0x0/0x38 returned 0 after 540 usecs

[ 2.817897] Doing 78

[ 2.817927] calling journal_init+0x0/0x40 @ 1

[ 2.818087] initcall journal_init+0x0/0x40 returned 0 after 121 usecs

[ 2.818107] Doing 79

[ 2.818137] calling init_ramfs_fs+0x0/0x24 @ 1

[ 2.818178] initcall init_ramfs_fs+0x0/0x24 returned 0 after 8 usecs

[ 2.818196] Doing 80

[ 2.818223] calling init_fat_fs+0x0/0x60 @ 1

[ 2.818723] initcall init_fat_fs+0x0/0x60 returned 0 after 452 usecs

[ 2.818745] Doing 81

[ 2.818774] calling init_vfat_fs+0x0/0x24 @ 1

[ 2.818814] initcall init_vfat_fs+0x0/0x24 returned 0 after 8 usecs

[ 2.818833] Doing 82

[ 2.818861] calling init_msdos_fs+0x0/0x24 @ 1

[ 2.818901] initcall init_msdos_fs+0x0/0x24 returned 0 after 7 usecs

[ 2.818919] Doing 83

[ 2.818949] calling init_iso9660_fs+0x0/0x88 @ 1

[ 2.819495] initcall init_iso9660_fs+0x0/0x88 returned 0 after 487 usecs

[ 2.819516] Doing 84

[ 2.819547] calling init_nfs_fs+0x0/0x1b0 @ 1

[ 2.821193] initcall init_nfs_fs+0x0/0x1b0 returned 0 after 1562 usecs

[ 2.821219] Doing 85

[ 2.821249] calling init_nfs_v2+0x0/0x24 @ 1

[ 2.821285] initcall init_nfs_v2+0x0/0x24 returned 0 after 2 usecs

[ 2.821304] Doing 86

[ 2.821332] calling init_nfs_v3+0x0/0x24 @ 1

[ 2.821365] initcall init_nfs_v3+0x0/0x24 returned 0 after 2 usecs

[ 2.821384] Doing 87

[ 2.821411] calling init_nfs_v4+0x0/0x6c @ 1

[ 2.821432] NFS: Registering the id_resolver key type

[ 2.821530] Key type id_resolver registered

[ 2.821558] Key type id_legacy registered

[ 2.821624] initcall init_nfs_v4+0x0/0x6c returned 0 after 172 usecs

[ 2.821645] Doing 88

[ 2.821674] calling init_nlm+0x0/0x9c @ 1

[ 2.821756] initcall init_nlm+0x0/0x9c returned 0 after 46 usecs

[ 2.821777] Doing 89

[ 2.821808] calling init_nls_cp437+0x0/0x24 @ 1

[ 2.821842] initcall init_nls_cp437+0x0/0x24 returned 0 after 2 usecs

[ 2.821861] Doing 90

[ 2.821890] calling init_nls_ascii+0x0/0x24 @ 1

[ 2.821925] initcall init_nls_ascii+0x0/0x24 returned 0 after 2 usecs

[ 2.821943] Doing 91

[ 2.821972] calling init_nls_iso8859_1+0x0/0x24 @ 1

[ 2.822007] initcall init_nls_iso8859_1+0x0/0x24 returned 0 after 2 usecs

[ 2.822025] Doing 92

[ 2.822054] calling init_nls_iso8859_15+0x0/0x24 @ 1

[ 2.822089] initcall init_nls_iso8859_15+0x0/0x24 returned 0 after 2 usecs

[ 2.822108] Doing 93

[ 2.822138] calling init_nls_utf8+0x0/0x6c @ 1

[ 2.822175] initcall init_nls_utf8+0x0/0x6c returned 0 after 6 usecs

[ 2.822193] Doing 94

[ 2.822220] calling init_ntfs_fs+0x0/0x32c @ 1

[ 2.822239] NTFS driver 2.1.30 [Flags: R/W DEBUG].

[ 2.822899] initcall init_ntfs_fs+0x0/0x32c returned 0 after 623 usecs

[ 2.822922] Doing 95

[ 2.822953] calling init_jffs2_fs+0x0/0x124 @ 1

[ 2.825337] initcall init_jffs2_fs+0x0/0x124 returned 0 after 2279 usecs

[ 2.825365] Doing 96

[ 2.825397] calling init_autofs4_fs+0x0/0x44 @ 1

[ 2.825840] initcall init_autofs4_fs+0x0/0x44 returned 0 after 392 usecs

[ 2.825864] Doing 97

[ 2.825895] calling fuse_init+0x0/0xf0 @ 1

[ 2.825918] fuse init (API version 7.22)

[ 2.826833] initcall fuse_init+0x0/0xf0 returned 0 after 875 usecs

[ 2.826858] Doing 98

[ 2.826887] calling init_udf_fs+0x0/0x68 @ 1

[ 2.827199] initcall init_udf_fs+0x0/0x68 returned 0 after 274 usecs

[ 2.827221] Doing 99

[ 2.827247] calling init_pstore_fs+0x0/0xa4 @ 1

[ 2.827306] initcall init_pstore_fs+0x0/0xa4 returned 0 after 27 usecs

[ 2.827326] Doing 100

[ 2.827351] calling ipc_init+0x0/0x30 @ 1

[ 2.827406] msgmni has been set to 1965

[ 2.827468] initcall ipc_init+0x0/0x30 returned 0 after 84 usecs

[ 2.827487] Doing 101

[ 2.827515] calling ipc_sysctl_init+0x0/0x24 @ 1

[ 2.827607] initcall ipc_sysctl_init+0x0/0x24 returned 0 after 58 usecs

[ 2.827627] Doing 102

[ 2.827654] calling key_proc_init+0x0/0x88 @ 1

[ 2.827703] initcall key_proc_init+0x0/0x88 returned 0 after 19 usecs

[ 2.827726] Doing 103

[ 2.827753] calling selinux_nf_ip_init+0x0/0xac @ 1

[ 2.827773] SELinux: Registering netfilter hooks

[ 2.827806] initcall selinux_nf_ip_init+0x0/0xac returned 0 after 24 usecs

[ 2.827823] Doing 104

[ 2.827848] calling init_sel_fs+0x0/0x150 @ 1

[ 2.829091] initcall init_sel_fs+0x0/0x150 returned 0 after 1179 usecs

[ 2.829113] Doing 105

[ 2.829140] calling selnl_init+0x0/0xd4 @ 1

[ 2.829202] initcall selnl_init+0x0/0xd4 returned 0 after 29 usecs

[ 2.829224] Doing 106

[ 2.829251] calling sel_netif_init+0x0/0xcc @ 1

[ 2.829295] initcall sel_netif_init+0x0/0xcc returned 0 after 12 usecs

[ 2.829314] Doing 107

[ 2.829341] calling sel_netnode_init+0x0/0xf8 @ 1

[ 2.829383] initcall sel_netnode_init+0x0/0xf8 returned 0 after 13 usecs

[ 2.829402] Doing 108

[ 2.829428] calling sel_netport_init+0x0/0xf8 @ 1

[ 2.829471] initcall sel_netport_init+0x0/0xf8 returned 0 after 14 usecs

[ 2.829490] Doing 109

[ 2.829516] calling aurule_init+0x0/0x50 @ 1

[ 2.829546] initcall aurule_init+0x0/0x50 returned 0 after 3 usecs

[ 2.829565] Doing 110

[ 2.829590] calling crypto_algapi_init+0x0/0x1c @ 1

[ 2.829647] initcall crypto_algapi_init+0x0/0x1c returned 0 after 24 usecs

[ 2.829666] Doing 111

[ 2.829692] calling skcipher_module_init+0x0/0x78 @ 1

[ 2.829724] initcall skcipher_module_init+0x0/0x78 returned 0 after 1 usecs

[ 2.829742] Doing 112

[ 2.829768] calling chainiv_module_init+0x0/0x24 @ 1

[ 2.829803] initcall chainiv_module_init+0x0/0x24 returned 0 after 6 usecs

[ 2.829822] Doing 113

[ 2.829847] calling eseqiv_module_init+0x0/0x24 @ 1

[ 2.829879] initcall eseqiv_module_init+0x0/0x24 returned 0 after 3 usecs

[ 2.829898] Doing 114

[ 2.829923] calling seqiv_module_init+0x0/0x24 @ 1

[ 2.829958] initcall seqiv_module_init+0x0/0x24 returned 0 after 4 usecs

[ 2.829975] Doing 115

[ 2.830004] calling crypto_user_init+0x0/0xcc @ 1

[ 2.830055] initcall crypto_user_init+0x0/0xcc returned 0 after 20 usecs

[ 2.830079] Doing 116

[ 2.830106] calling hmac_module_init+0x0/0x24 @ 1

[ 2.830139] initcall hmac_module_init+0x0/0x24 returned 0 after 4 usecs

[ 2.830160] Doing 117

[ 2.830188] calling crypto_null_mod_init+0x0/0x88 @ 1

[ 2.831507] initcall crypto_null_mod_init+0x0/0x88 returned 0 after 1247 usecs

[ 2.831534] Doing 118

[ 2.831563] calling md4_mod_init+0x0/0x24 @ 1

[ 2.831849] initcall md4_mod_init+0x0/0x24 returned 0 after 244 usecs

[ 2.831872] Doing 119

[ 2.831900] calling md5_mod_init+0x0/0x24 @ 1

[ 2.832184] initcall md5_mod_init+0x0/0x24 returned 0 after 242 usecs

[ 2.832207] Doing 120

[ 2.832234] calling rmd128_mod_init+0x0/0x24 @ 1

[ 2.832513] initcall rmd128_mod_init+0x0/0x24 returned 0 after 237 usecs

[ 2.832537] Doing 121

[ 2.832564] calling rmd160_mod_init+0x0/0x24 @ 1

[ 2.832846] initcall rmd160_mod_init+0x0/0x24 returned 0 after 240 usecs

[ 2.832869] Doing 122

[ 2.832898] calling rmd256_mod_init+0x0/0x24 @ 1

[ 2.833176] initcall rmd256_mod_init+0x0/0x24 returned 0 after 238 usecs

[ 2.833199] Doing 123

[ 2.833226] calling rmd320_mod_init+0x0/0x24 @ 1

[ 2.833503] initcall rmd320_mod_init+0x0/0x24 returned 0 after 234 usecs

[ 2.833527] Doing 124

[ 2.833554] calling sha1_generic_mod_init+0x0/0x24 @ 1

[ 2.833833] initcall sha1_generic_mod_init+0x0/0x24 returned 0 after 236 usecs

[ 2.833860] Doing 125

[ 2.833891] calling sha256_generic_mod_init+0x0/0x28 @ 1

[ 2.834564] initcall sha256_generic_mod_init+0x0/0x28 returned 0 after 618 usecs

[ 2.834590] Doing 126

[ 2.834622] calling sha512_generic_mod_init+0x0/0x28 @ 1

[ 2.835184] initcall sha512_generic_mod_init+0x0/0x28 returned 0 after 512 usecs

[ 2.835208] Doing 127

[ 2.835235] calling wp512_mod_init+0x0/0x28 @ 1

[ 2.836049] initcall wp512_mod_init+0x0/0x28 returned 0 after 758 usecs

[ 2.836073] Doing 128

[ 2.836101] calling tgr192_mod_init+0x0/0x28 @ 1

[ 2.836869] initcall tgr192_mod_init+0x0/0x28 returned 0 after 712 usecs

[ 2.836894] Doing 129

[ 2.836924] calling crypto_ecb_module_init+0x0/0x24 @ 1

[ 2.836962] initcall crypto_ecb_module_init+0x0/0x24 returned 0 after 5 usecs

[ 2.836981] Doing 130

[ 2.837008] calling crypto_cbc_module_init+0x0/0x24 @ 1

[ 2.837041] initcall crypto_cbc_module_init+0x0/0x24 returned 0 after 3 usecs

[ 2.837061] Doing 131

[ 2.837088] calling crypto_cts_module_init+0x0/0x24 @ 1

[ 2.837122] initcall crypto_cts_module_init+0x0/0x24 returned 0 after 4 usecs

[ 2.837141] Doing 132

[ 2.837166] calling crypto_module_init+0x0/0x24 @ 1

[ 2.837198] initcall crypto_module_init+0x0/0x24 returned 0 after 3 usecs

[ 2.837219] Doing 133

[ 2.837245] calling crypto_module_init+0x0/0x24 @ 1

[ 2.837278] initcall crypto_module_init+0x0/0x24 returned 0 after 4 usecs

[ 2.837296] Doing 134

[ 2.837321] calling crypto_ctr_module_init+0x0/0x74 @ 1

[ 2.837358] initcall crypto_ctr_module_init+0x0/0x74 returned 0 after 7 usecs

[ 2.837376] Doing 135

[ 2.837402] calling crypto_gcm_module_init+0x0/0x14c @ 1

[ 2.837451] initcall crypto_gcm_module_init+0x0/0x14c returned 0 after 18 usecs

[ 2.837470] Doing 136

[ 2.837496] calling crypto_ccm_module_init+0x0/0xa4 @ 1

[ 2.837537] initcall crypto_ccm_module_init+0x0/0xa4 returned 0 after 11 usecs

[ 2.837556] Doing 137

[ 2.837583] calling des_generic_mod_init+0x0/0x28 @ 1

[ 2.838115] initcall des_generic_mod_init+0x0/0x28 returned 0 after 483 usecs

[ 2.838140] Doing 138

[ 2.838169] calling blowfish_mod_init+0x0/0x24 @ 1

[ 2.838530] initcall blowfish_mod_init+0x0/0x24 returned 0 after 317 usecs

[ 2.838555] Doing 139

[ 2.838584] calling twofish_mod_init+0x0/0x24 @ 1

[ 2.838875] initcall twofish_mod_init+0x0/0x24 returned 0 after 244 usecs

[ 2.838899] Doing 140

[ 2.838926] calling aes_init+0x0/0x24 @ 1

[ 2.839207] initcall aes_init+0x0/0x24 returned 0 after 239 usecs

[ 2.839230] Doing 141

[ 2.839259] calling camellia_init+0x0/0x24 @ 1

[ 2.839548] initcall camellia_init+0x0/0x24 returned 0 after 246 usecs

[ 2.839571] Doing 142

[ 2.839599] calling arc4_init+0x0/0x28 @ 1

[ 2.840128] initcall arc4_init+0x0/0x28 returned 0 after 480 usecs

[ 2.840152] Doing 143

[ 2.840180] calling deflate_mod_init+0x0/0x24 @ 1

[ 2.840463] initcall deflate_mod_init+0x0/0x24 returned 0 after 239 usecs

[ 2.840488] Doing 144

[ 2.840517] calling michael_mic_init+0x0/0x24 @ 1

[ 2.840804] initcall michael_mic_init+0x0/0x24 returned 0 after 244 usecs

[ 2.840828] Doing 145

[ 2.840856] calling crc32c_mod_init+0x0/0x24 @ 1

[ 2.841196] initcall crc32c_mod_init+0x0/0x24 returned 0 after 295 usecs

[ 2.841219] Doing 146

[ 2.841251] calling crypto_authenc_module_init+0x0/0x24 @ 1

[ 2.841291] initcall crypto_authenc_module_init+0x0/0x24 returned 0 after 8 usecs

[ 2.841311] Doing 147

[ 2.841338] calling crypto_authenc_esn_module_init+0x0/0x24 @ 1

[ 2.841372] initcall crypto_authenc_esn_module_init+0x0/0x24 returned 0 after 3 usecs

[ 2.841391] Doing 148

[ 2.841416] calling lzo_mod_init+0x0/0x24 @ 1

[ 2.841698] initcall lzo_mod_init+0x0/0x24 returned 0 after 240 usecs

[ 2.841723] Doing 149

[ 2.841751] calling krng_mod_init+0x0/0x24 @ 1

[ 2.842071] initcall krng_mod_init+0x0/0x24 returned 0 after 276 usecs

[ 2.842094] Doing 150

[ 2.842123] calling ghash_mod_init+0x0/0x24 @ 1

[ 2.842419] initcall ghash_mod_init+0x0/0x24 returned 0 after 250 usecs

[ 2.842442] Doing 151

[ 2.842473] calling proc_genhd_init+0x0/0xb0 @ 1

[ 2.842551] initcall proc_genhd_init+0x0/0xb0 returned 0 after 43 usecs

[ 2.842573] Doing 152

[ 2.842602] calling noop_init+0x0/0x24 @ 1

[ 2.842625] io scheduler noop registered

[ 2.842654] initcall noop_init+0x0/0x24 returned 0 after 22 usecs

[ 2.842672] Doing 153

[ 2.842699] calling deadline_init+0x0/0x24 @ 1

[ 2.842721] io scheduler deadline registered

[ 2.842752] initcall deadline_init+0x0/0x24 returned 0 after 23 usecs

[ 2.842773] Doing 154

[ 2.842798] calling cfq_init+0x0/0x108 @ 1

[ 2.843228] io scheduler cfq registered (default)

[ 2.843266] initcall cfq_init+0x0/0x108 returned 0 after 423 usecs

[ 2.843286] Doing 155

[ 2.843317] calling libcrc32c_mod_init+0x0/0x84 @ 1

[ 2.843371] initcall libcrc32c_mod_init+0x0/0x84 returned 0 after 21 usecs

[ 2.843390] Doing 156

[ 2.843416] calling init_kmp+0x0/0x24 @ 1

[ 2.843448] initcall init_kmp+0x0/0x24 returned 0 after 2 usecs

[ 2.843466] Doing 157

[ 2.843492] calling init_bm+0x0/0x24 @ 1

[ 2.843523] initcall init_bm+0x0/0x24 returned 0 after 2 usecs

[ 2.843541] Doing 158

[ 2.843567] calling init_fsm+0x0/0x24 @ 1

[ 2.843597] initcall init_fsm+0x0/0x24 returned 0 after 2 usecs

[ 2.843616] Doing 159

[ 2.843644] calling percpu_counter_startup+0x0/0x28 @ 1

[ 2.843682] initcall percpu_counter_startup+0x0/0x28 returned 0 after 7 usecs

[ 2.843702] Doing 160

[ 2.843729] calling audit_classes_init+0x0/0x68 @ 1

[ 2.843775] initcall audit_classes_init+0x0/0x68 returned 0 after 13 usecs

[ 2.843795] Doing 161

[ 2.843825] calling weim_driver_init+0x0/0x24 @ 1

[ 2.844472] imx-weim 21b8000.weim: WEIM driver registered.

[ 2.844769] initcall weim_driver_init+0x0/0x24 returned 0 after 883 usecs

[ 2.844792] Doing 162

[ 2.844825] calling imx_pwm_driver_init+0x0/0x24 @ 1

[ 2.846388] initcall imx_pwm_driver_init+0x0/0x24 returned 0 after 1484 usecs

[ 2.846411] Doing 163

[ 2.846443] calling pci_proc_init+0x0/0xd4 @ 1

[ 2.846551] initcall pci_proc_init+0x0/0xd4 returned 0 after 68 usecs

[ 2.846571] Doing 164

[ 2.846602] calling pcie_portdrv_init+0x0/0xb4 @ 1

[ 2.847531] initcall pcie_portdrv_init+0x0/0xb4 returned 0 after 868 usecs

[ 2.847555] Doing 165

[ 2.847587] calling aer_service_init+0x0/0x50 @ 1

[ 2.847854] aer 0000:00:00.0:pcie02: service driver aer loaded

[ 2.847948] initcall aer_service_init+0x0/0x50 returned 0 after 318 usecs

[ 2.847969] Doing 166

[ 2.848002] calling pcie_pme_service_init+0x0/0x24 @ 1

[ 2.848171] pcieport 0000:00:00.0: Signaling PME through PCIe PME interrupt

[ 2.848212] pcie_pme 0000:00:00.0:pcie01: service driver pcie_pme loaded

[ 2.848306] initcall pcie_pme_service_init+0x0/0x24 returned 0 after 258 usecs

[ 2.848328] Doing 167

[ 2.848358] calling fb_console_init+0x0/0x114 @ 1

[ 2.848559] initcall fb_console_init+0x0/0x114 returned 0 after 162 usecs

[ 2.848581] Doing 168

[ 2.848615] calling l4f00242t03_driver_init+0x0/0x24 @ 1

[ 2.848714] initcall l4f00242t03_driver_init+0x0/0x24 returned 0 after 63 usecs

[ 2.848735] Doing 169

[ 2.848765] calling platform_lcd_driver_init+0x0/0x24 @ 1

[ 2.849304] initcall platform_lcd_driver_init+0x0/0x24 returned 0 after 487 usecs

[ 2.849327] Doing 170

[ 2.849358] calling genericbl_driver_init+0x0/0x24 @ 1

[ 2.849610] initcall genericbl_driver_init+0x0/0x24 returned 0 after 208 usecs

[ 2.849632] Doing 171

[ 2.849662] calling pwm_backlight_driver_init+0x0/0x24 @ 1

[ 2.851550] imx-pwm 2084000.pwm: pwm enabled

[ 2.904465] initcall pwm_backlight_driver_init+0x0/0x24 returned 0 after 53472 usecs

[ 2.904492] Doing 172

[ 2.904521] calling ldb_driver_init+0x0/0x24 @ 1

[ 2.906488] initcall ldb_driver_init+0x0/0x24 returned 0 after 1879 usecs

[ 2.906511] Doing 173

[ 2.906543] calling mipi_dsi_init+0x0/0x5c @ 1

[ 2.907254] MIPI DSI driver module loaded

[ 2.907293] initcall mipi_dsi_init+0x0/0x5c returned 0 after 697 usecs

[ 2.907313] Doing 174

[ 2.907343] calling mxc_hdmi_i2c_init+0x0/0x28 @ 1

[ 2.907615] initcall mxc_hdmi_i2c_init+0x0/0x28 returned 0 after 226 usecs

[ 2.907638] Doing 175

[ 2.907667] calling mxc_hdmi_init+0x0/0x24 @ 1

[ 2.909310] initcall mxc_hdmi_init+0x0/0x24 returned 0 after 1562 usecs

[ 2.909336] Doing 176

[ 2.909365] calling mxc_lcdif_init+0x0/0x24 @ 1

[ 2.909895] initcall mxc_lcdif_init+0x0/0x24 returned 0 after 480 usecs

[ 2.909918] Doing 177

[ 2.909949] calling mxcfb_init+0x0/0x24 @ 1

[ 2.910597] mxc_sdc_fb fb.24: registered mxc display driver ldb

[ 2.954454] imx-ipuv3 2800000.ipu: IPU DMFC DP HIGH RESOLUTION: 1(0,1), 5B(2~5), 5F(6,7)

[ 3.172492] Console: switching to colour frame buffer device 128x37

[ 3.210270] mxc_hdmi 20e0000.hdmi_video: Detected HDMI controller 0x13:0xa:0xa0:0xc1

[ 3.210326] fbcvt: 1920x1080@60: CVT Name - 2.073M9

[ 3.210515] mxc_sdc_fb fb.25: registered mxc display driver hdmi

[ 3.320320] mxc_sdc_fb fb.26: Can't get fb option for mxcfb2!

[ 3.320521] mxc_sdc_fb fb.27: Can't get fb option for mxcfb3!

[ 3.320699] initcall mxcfb_init+0x0/0x24 returned 0 after 401079 usecs

[ 3.320722] Doing 178

[ 3.320755] calling mxc_epdc_fb_driver_init+0x0/0x24 @ 1

[ 3.321365] initcall mxc_epdc_fb_driver_init+0x0/0x24 returned 0 after 558 usecs

[ 3.321388] Doing 179

[ 3.321419] calling sii902x_driver_init+0x0/0x28 @ 1

[ 3.321589] initcall sii902x_driver_init+0x0/0x28 returned 0 after 131 usecs

[ 3.321611] Doing 180

[ 3.321641] calling cabc_driver_init+0x0/0x24 @ 1

[ 3.322098] initcall cabc_driver_init+0x0/0x24 returned 0 after 411 usecs

[ 3.322118] Doing 181

[ 3.322148] calling mx3fb_init+0x0/0x4c @ 1

[ 3.322398] initcall mx3fb_init+0x0/0x4c returned 0 after 210 usecs

[ 3.322418] Doing 182

[ 3.322446] calling mxsfb_driver_init+0x0/0x24 @ 1

[ 3.323124] initcall mxsfb_driver_init+0x0/0x24 returned 0 after 627 usecs

[ 3.323144] Doing 183

[ 3.323174] calling pxp_driver_init+0x0/0x24 @ 1

[ 3.323665] initcall pxp_driver_init+0x0/0x24 returned 0 after 445 usecs

[ 3.323687] Doing 184

[ 3.323716] calling sdma_module_init+0x0/0x2c @ 1

[ 3.324406] imx-sdma 20ec000.sdma: no iram assigned, using external mem

[ 3.329132] imx-sdma 20ec000.sdma: loaded firmware 1.1

[ 3.336107] imx-sdma 20ec000.sdma: initialized

[ 3.336612] initcall sdma_module_init+0x0/0x2c returned 0 after 12549 usecs

[ 3.336634] Doing 185

[ 3.336667] calling pfuze_driver_init+0x0/0x28 @ 1

[ 3.338582] pfuze100-regulator 1-0008: Full lay: 2, Metal lay: 1

[ 3.339328] pfuze100-regulator 1-0008: FAB: 0, FIN: 0

[ 3.339361] pfuze100-regulator 1-0008: pfuze100 found.

[ 3.341469] SW1AB: 300 <--> 1875 mV at 1150 mV

[ 3.343964] SW1C: 300 <--> 1875 mV at 1175 mV

[ 3.346466] SW2: 800 <--> 3300 mV at 3300 mV

[ 3.348991] SW3A: 400 <--> 1975 mV at 1350 mV

[ 3.351468] SW3B: 400 <--> 1975 mV at 1350 mV

[ 3.354056] SW4: 800 <--> 1975 mV at 1800 mV

[ 3.355891] SWBST: 5000 <--> 5150 mV at 5000 mV

[ 3.357639] VSNVS: 1000 <--> 3000 mV at 3000 mV

[ 3.358704] VREFDDR: 750 mV

[ 3.359735] VGEN1: 800 <--> 1550 mV at 1200 mV

[ 3.361530] VGEN2: 800 <--> 1550 mV at 1500 mV

[ 3.364167] VGEN3: 1800 <--> 3300 mV at 2800 mV

[ 3.366740] VGEN4: 1800 <--> 3300 mV at 3300 mV

[ 3.369245] VGEN5: 1800 <--> 3300 mV at 3300 mV

[ 3.371714] VGEN6: 1800 <--> 3300 mV at 3000 mV

[ 3.375737] VCOIN: 3000 mV

[ 3.376800] initcall pfuze_driver_init+0x0/0x28 returned 0 after | usecs

[ 3.376825] Doing 186 |

[ 3.376858] calling pty_init+0x0/0x1c @ 1

[ 3.377261] initcall pty_init+0x0/0x1c returned 0 after 355 usecs

[ 3.377286] Doing 187

[ 3.377317] calling sysrq_init+0x0/0x104 @ 1

[ 3.377392] initcall sysrq_init+0x0/0x104 returned 0 after 40 usecs

[ 3.377411] Doing 188

[ 3.377441] calling imx_serial_init+0x0/0x78 @ 1

[ 3.377459] Serial: IMX driver

[ 3.378182] 2020000.serial: ttymxc0 at MMIO 0x2020000 (irq = 58) is a IMX

[ 9.706144] console [ttymxc0] enabled

[ 9.711306] 21ec000.serial: ttymxc2 at MMIO 0x21ec000 (irq = 60) is a IMX

[ 9.719339] 21f0000.serial: ttymxc3 at MMIO 0x21f0000 (irq = 61) is a IMX

[ 9.727160] 21f4000.serial: ttymxc4 at MMIO 0x21f4000 (irq = 62) is a IMX

[ 9.734940] initcall imx_serial_init+0x0/0x78 returned 0 after 6208452 usecs

[ 9.742022] Doing 189

[ 9.744384] calling init_kgdboc+0x0/0x38 @ 1

[ 9.748800] kgdb: Registered I/O driver kgdboc.

[ 9.753371] kgdb: Waiting for connection from remote gdb...

Re: Kgdbwait into wait state, but GDB timeout, can not connect

igorpadykov — Tue, 03 Nov 2015 13:08:41 GMT

Hi jesse

for gdb usage one can look at

AN4553 Using Open Source Debugging Tools for Linux on i.MX Processors

http://cache.freescale.com/files/32bit/doc/app_note/AN4553.pdf

Best regards

igor

-----------------------------------------------------------------------------------------------------------------------

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Re: Kgdbwait into wait state, but GDB timeout, can not connect

fatalfeel — Tue, 03 Nov 2015 18:01:59 GMT

thanks i read an4553.pdf already but not help me

follows i read already~

kgdb teaching

https://www.kernel.org/pub/linux/kernel/people/jwessel/kdb/

kgdb freescale

http://cache.freescale.com/files/32bit/doc/app_note/AN4553.pdf

API debug

https://community.freescale.com/thread/287098

Kernel debug

http://stackoverflow.com/questions/17329794/sysrq-g-wont-break-kernel

http://www.jann.cc/2013/08/24/debugging_the_imx233_olinuxino_via_sjtag_with_openocd.html#debugging-the-linux-kernel-via-kgdb

http://blog.hibeiyu.com/archives/432

eclipse setting

https://books.google.com.tw/books?id=AUsOCgAAQBAJ&pg=PA169

gcc param

https://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html

Re: Kgdbwait into wait state, but GDB timeout, can not connect

csanchezdll — Wed, 10 Feb 2016 13:15:53 GMT

Hi Jesse,

I am facing the same problem. sysrg-g breaks and I can connect and debug with gdb, but "kgdbwait" seems to hang the kernel; it stops with

kgdb: Registered I/O driver kgdboc.

kgdb: Waiting for connection from remote gdb...

but I can not connect with gdb. I have tried with and without console on the same UART (ttymxc0).

Did you solve the issue?

Thanks and BR,

Carlos

Re: Kgdbwait into wait state, but GDB timeout, can not connect

fatalfeel — Wed, 10 Feb 2016 14:04:37 GMT

yes~~~

I use openocd + eclipse full debug i.mx6

google

openocd eclipse i.mx6

Re: Kgdbwait into wait state, but GDB timeout, can not connect

fatalfeel — Wed, 10 Feb 2016 14:12:13 GMT

another way try to use UART 2 but i nerver try can not sure

openocd can debug full kernel even uboot~

Re: Kgdbwait into wait state, but GDB timeout, can not connect

csanchezdll — Mon, 15 Feb 2016 09:04:05 GMT

Hi Jesse,

thanks, though JTAG debugging was not an option for me due to HW board limitations.

Anyways, I got it solved. Seems UART clocks were not being enabled, so it could not work. Console printout worked because that function temporarily enabled them. This is fixed in kernel versions 3.19 and later (I was using 3.10), or the patch can be applied over 3.10 with no problems (I did the latter):

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/patch/?id=6b8bdad961647ebbc3fec8130f6487ab9fddaef4

There was also another minor bug in 3.10 affecting kdb usability, also solved in newer kernels:

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/patch/drivers/tty/serial/imx.c?id=26c474128b96d277234f35…

Now I can do proper debugging using serial port :smileyhappy:

Carlos