On Mon, Aug 10, 2020 at 7:19 PM John Stultz <john.stu...@linaro.org> wrote: > > On Mon, Aug 10, 2020 at 5:56 PM Saravana Kannan <sarava...@google.com> wrote: > > > > On Mon, Aug 10, 2020 at 5:31 PM John Stultz <john.stu...@linaro.org> wrote: > > > > > > When testing with modular configs w/ mainline on db845c, I've been > > > running into an early boot crash (nothing on the console - but serial > > > drivers as built as modules - so not surprising). After setting the > > > CONFIG_SERIAL_QCOM_GENI=y (along with other QCOM_GENI configs) to > > > debug, I've found the backtrace below. > > > > > > I'm a little stumped as to what the issue might be. But wanted to > > > raise it in case anyone else is seeing similar. I don't see this issue > > > when using my non-modular config. > > > > > > I've tried reverting most of the geni changes since v5.8, but that > > > hasn't seemed to help much, making me suspicious it's something else. > > > > > > Any ideas? > > > > > > thanks > > > -john > > > > > > > > > [ 6.469057] Unable to handle kernel paging request at virtual > > > address ffffffe645d4e6cc > > > [ 6.481623] Mem abort info: > > > [ 6.484466] ESR = 0x86000007 > > > [ 6.487557] EC = 0x21: IABT (current EL), IL = 32 bits > > > [ 6.492929] SET = 0, FnV = 0 > > > [ 6.496016] EA = 0, S1PTW = 0 > > > [ 6.499202] swapper pgtable: 4k pages, 39-bit VAs, > > > pgdp=000000008151e000 > > > [ 6.501286] ufshcd-qcom 1d84000.ufshc: ufshcd_print_pwr_info:[RX, > > > TX]: gear=[3, 3], lane[2, 2], pwr[FAST MODE, FAST MODE], rate = 2 > > > [ 6.505977] [ffffffe645d4e6cc] pgd=000000017df9f003, > > > p4d=000000017df9f003, pud=000000017df9f003, pmd=000000017df9c003, > > > pte=0000000000000000 > > > [ 6.505990] Internal error: Oops: 86000007 [#1] PREEMPT SMP > > > [ 6.505995] Modules linked in: zl10353 zl10039 zl10036 zd1301_demod > > > xc5000 xc4000 ves1x93 ves1820 tuner_xc2028 tuner_simple tuner_types > > > tua9001 tua6100 1 > > > [ 6.506152] isl6405 > > > [ 6.518104] ufshcd-qcom 1d84000.ufshc: > > > ufshcd_find_max_sup_active_icc_level: Regulator capability was not > > > set, actvIccLevel=0 > > > [ 6.530549] horus3a helene fc2580 fc0013 fc0012 fc0011 ec100 e4000 > > > dvb_pll ds3000 drxk drxd drx39xyj dib9000 dib8000 dib7000p dib7000m > > > dib3000mc dibx003 > > > [ 6.624271] CPU: 7 PID: 148 Comm: kworker/7:2 Tainted: G W > > > 5.8.0-mainline-12021-g6defd37ba1cd #3455 > > > [ 6.624273] Hardware name: Thundercomm Dragonboard 845c (DT) > > > [ 6.624290] Workqueue: events deferred_probe_work_func > > > [ 6.624296] pstate: 40c00005 (nZcv daif +PAN +UAO BTYPE=--) > > > [ 6.624307] pc : qcom_geni_console_setup+0x0/0x110 > > > [ 6.624316] lr : try_enable_new_console+0xa0/0x140 > > > [ 6.624318] sp : ffffffc010843a30 > > > [ 6.624320] x29: ffffffc010843a30 x28: ffffffe645c3e7d0 > > > [ 6.624325] x27: ffffff80f8022180 x26: ffffffc010843b28 > > > [ 6.637937] x25: 0000000000000000 x24: ffffffe6462a2000 > > > [ 6.637941] x23: ffffffe646398000 x22: 0000000000000000 > > > [ 6.637945] x21: 0000000000000000 x20: ffffffe6462a5ce8 > > > [ 6.637952] x19: ffffffe646398e38 x18: ffffffffffffffff > > > [ 6.680296] x17: 0000000000000000 x16: ffffffe64492b900 > > > [ 6.680300] x15: ffffffe6461e9d08 x14: 69202930203d2064 > > > [ 6.680305] x13: 7561625f65736162 x12: 202c363331203d20 > > > [ 6.696434] x11: 0000000000000030 x10: 0101010101010101 > > > [ 6.696438] x9 : 4d4d20746120304d x8 : 7f7f7f7f7f7f7f7f > > > [ 6.707249] x7 : feff4c524c787373 x6 : 0000000000008080 > > > [ 6.707253] x5 : 0000000000000000 x4 : 8080000000000000 > > > [ 6.707257] x3 : 0000000000000000 x2 : ffffffe645d4e6cc > > > [ 6.744223] qcom_geni_serial 898000.serial: dev_pm_opp_set_rate: > > > failed to find OPP for freq 102400000 (-34) > > > [ 6.744966] x1 : fffffffefe74e174 x0 : ffffffe6462a5ce8 > > > [ 6.753580] qcom_geni_serial 898000.serial: dev_pm_opp_set_rate: > > > failed to find OPP for freq 102400000 (-34) > > > [ 6.761634] Call trace: > > > [ 6.761639] qcom_geni_console_setup+0x0/0x110 > > > [ 6.761645] register_console+0x29c/0x2f8 > > > [ 6.767981] Bluetooth: hci0: Frame reassembly failed (-84) > > > [ 6.775252] uart_add_one_port+0x438/0x500 > > > [ 6.775258] qcom_geni_serial_probe+0x2c4/0x4a8 > > > [ 6.775266] platform_drv_probe+0x58/0xa8 > > > [ 6.855359] really_probe+0xec/0x398 > > > [ 6.855362] driver_probe_device+0x5c/0xb8 > > > [ 6.855367] __device_attach_driver+0x98/0xb8 > > > [ 7.184945] bus_for_each_drv+0x74/0xd8 > > > [ 7.188825] __device_attach+0xec/0x148 > > > [ 7.192705] device_initial_probe+0x24/0x30 > > > [ 7.196937] bus_probe_device+0x9c/0xa8 > > > [ 7.200816] deferred_probe_work_func+0x7c/0xb8 > > > [ 7.205398] process_one_work+0x20c/0x4b0 > > > [ 7.209456] worker_thread+0x48/0x460 > > > [ 7.213157] kthread+0x14c/0x158 > > > [ 7.216432] ret_from_fork+0x10/0x18 > > > [ 7.220049] Code: bad PC value > > > [ 7.223139] ---[ end trace 73f3b21e251d5a70 ]--- > > > > Ugh... I've hit this before. I didn't expect upstream to have this > > issue so didn't bother checking. qcom_geni_console_setup is marked as > > __init. That's the problem. > > Ah! That would make sense! I'll give that a try and if it works I'll > see about submitting a fix upstream.
Yep. That seems to dodge the problem. I'll get a patch sent out here soon. thanks -john
