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OMAP remoteproc: ipu has crashed

Hi all,

Sometimes, after boot-up, the system will be hang by splash and can't into android successfully. In that time, we got kernel messages and list below. By tracing omap_rproc_watchdog_isr(), it will set timer status to OMAP_TIMER_INT_OVERFLOW and rproc crash dump. We have no idea about this issue and what situation will trigger this ISR? 

So far, we had tried http://review.omapzoom.org/#/c/21006/ and can't fix.

Could you give some suggestions how to fix this issue? Or some patches?

Thanks!

<6>[   10.482940] omap-rproc omap-rproc.1: Loaded BIOS image ducati-m3.bin, size 5646104
<4>[   10.529754] omap_hwmod: ipu: failed to hardreset
<6>[   10.541259] omap-rproc omap-rproc.1: remote processor ipu is now up
<3>[   15.555358] omap-rproc omap-rproc.1: rproc_watchdog_isr
<6>[   15.555541] dump_ipu_registers: REGISTER DUMP FOR REMOTEPROC ipu
<6>[   15.555603] dump_ipu_registers: PC is at ffffffff
<6>[   15.555694] dump_ipu_registers: LR is at ffffffff
<6>[   15.555755] dump_ipu_registers: pc : [<ffffffff>]    lr : [<ffffffff>]    psr: ffffffff
<6>[   15.555755] sp : ffffffff  ip : ffffffff  fp : ffffffff
<6>[   15.555938] dump_ipu_registers: r10: ffffffff  r9 : ffffffff  r8 : ffffffff
<6>[   15.556030] dump_ipu_registers: r7 : ffffffff  r6 : ffffffff  r5 : ffffffff  r4 : ffffffff
<6>[   15.556121] dump_ipu_registers: r3 : ffffffff  r2 : ffffffff  r1 : ffffffff  r0 : ffffffff
<6>[   15.556182] dump_ipu_registers: Flags: NZCV  IRQs off  FIQs off
<6>[   15.556549] _event_notify: remoteproc: ipu has crashed
<3>[   15.556610] rpmsg_rproc_error: Fatal error in ipu
<3>[   15.556732] rpmsg_rproc_error: Fatal error in ipu