Re: MMCCAM hang

On Wed, Dec 27, 2023, 4:55 PM Bjoern A. Zeeb <bzeeb-lists@lists.zabbadoz.net>
wrote:

> Hi,
>
> sdhci_fsl_fdt0: Desired SD/MMC freq: 50000000, actual: 50000000; base
> 700000000 prescale 1 divisor 14
> GEOM: new disk sdda0
> sdda0 at sdhci_slot0 bus 0 scbus0 target 0 lun 0
> sdda0: Relative addr: 00000002
> Card features: <MMC Memory High-Capacity>
> Card random: unblocking device.
> GEOM: new disk sdda0boot0
> memory OCR: 00ff8080
> sdda0: Serial Number .......
> sdda0: MMCHC .................................. by 17 0x0000
> GEOM: new disk sdda0boot1
> uhub0: 2 ports with 2 removable, self powered
>
> at which point basically anything hangs.  In auto-boot it is
> before/during file-system checks.
> In single user mode camcontrol devlist will show sdda0
> but
>
> root@:/ # gpart show sdda0
> load: 6.06  cmd: gpart 24 [g_waitfor_event] 1.28r 0.00u 0.00s 0% 2088k
> {forever}
>
>
> Unclear at which point I broke to debugger and this is where it seems to
> hang:
>
> db> trace 100088
> Tracing pid 4 tid 100088 td 0xffff0000dc527000
> ipi_stop() at ipi_stop+0x34
> arm_gic_v3_intr() at arm_gic_v3_intr+0xe4
> intr_irq_handler() at intr_irq_handler+0x80
> handle_el1h_irq() at handle_el1h_irq+0x14
> --- interrupt
> spinlock_exit() at spinlock_exit+0x44
> callout_reset_sbt_on() at callout_reset_sbt_on+0x210
> sdhci_cam_action() at sdhci_cam_action+0x284
> xpt_run_devq() at xpt_run_devq+0x4c8
> xpt_action_default() at xpt_action_default+0x470
> sddastart() at sddastart+0x1bc
> xpt_run_allocq() at xpt_run_allocq+0xa8
> xpt_done_process() at xpt_done_process+0x610
> xpt_done_td() at xpt_done_td+0x1a8
> fork_exit() at fork_exit+0x8c
> fork_trampoline() at fork_trampoline+0x18
>
>
> Anyone an idea?
>


Looks like deadlock with another thread. Anybody else in the time keeping /
callout code?

Warmer

> --
> Bjoern A. Zeeb                                                     r15:7
>