Date: Tue, 12 Sep 2017 12:51:41 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 222256] RPI random number generator underruns when BCM2835_RNG_USE_CALLOUT is set Message-ID: <bug-222256-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D222256 Bug ID: 222256 Summary: RPI random number generator underruns when BCM2835_RNG_USE_CALLOUT is set Product: Base System Version: CURRENT Hardware: arm OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: sylvain@sylvaingarrigues.com When used on a Raspberry Pi 3 with BCM2835_RNG_USE_CALLOUT defined, the boot lok includes a lot of: bcmrng0: Too many underruns, resetting bcmrng0: RNG stalled, disabling device -- Relevant part of boot log: bcmrng0: <Broadcom BCM2835 RNG> mem 0x7e104000-0x7e10400f on simplebus0 bcmrng0: RNG_CTRL (00000001) RNG_COMBLK2_OSC (00) Oscillator 1 enabled Oscillator 2 enabled Oscillator 3 enabled Oscillator 4 enabled Oscillator 5 enabled Oscillator 6 enabled RNG_COMBLK1_OSC (00) Oscillator 1 enabled Oscillator 2 enabled Oscillator 3 enabled Oscillator 4 enabled Oscillator 5 enabled Oscillator 6 enabled RNG_JCLK_BYP_DIV_CNT (00) APB clock frequency / 2 RNG_JCLK_BYP_SRC: Use RNG clock (APB clock) RNG_JCLK_BYP_SEL: Use internal jitter clock RNG_RBGEN_BIT: RBG enabled RNG_CTRL (04040058) RND_VAL: 04 RND_WARM_CNT: 40058 RNG_FF_THRES: 00002 RNG_INT_MASK: interrupt enabledmbox0: <BCM2835 VideoCore Mailbox> mem 0x7e00b880-0x7e00b8bf irq 17 on simplebus0 gpio0: <BCM2708/2835 GPIO controller> mem 0x7e200000-0x7e2000b3 irq 18,19 on simplebus0 gpiobus0: <OFW GPIO bus> on gpio0 gpioc0: <GPIO controller> on gpio0 uart0: <PrimeCell UART (PL011)> mem 0x7e201000-0x7e201fff irq 20 on simpleb= us0 uart0: console (115200,n,8,1) spi0: <BCM2708/2835 SPI controller> mem 0x7e204000-0x7e204fff irq 21 on simplebus0 spibus0: <OFW SPI bus> on spi0 spigen0: <SPI Generic IO> at cs 0 mode 0 on spibus0 spibus0: <unknown card> at cs 0 mode 0 spibus0: <unknown card> at cs 1 mode 0 iichb0: <BCM2708/2835 BSC controller> mem 0x7e804000-0x7e804fff irq 32 on simplebus0 iicbus0: <OFW I2C bus> on iichb0 iic0: <I2C generic I/O> on iicbus0 bcm283x_dwcotg0: <DWC OTG 2.0 integrated USB controller (bcm283x)> mem 0x7e980000-0x7e98ffff,0x7e006000-0x7e006fff irq 38,39 on simplebus0 usbus0 on bcm283x_dwcotg0 sdhci_bcm0: <Broadcom 2708 SDHCI controller> mem 0x7e300000-0x7e3000ff irq = 42 on simplebus0 mmc0: <MMC/SD bus> on sdhci_bcm0 vchiq0: <BCM2835 VCHIQ> mem 0x7e00b840-0x7e00b84e irq 45 on simplebus0 vchiq: local ver 8 (min 3), remote ver 8. pcm0: <VCHIQ audio> on vchiq0 pmu0: <Performance Monitoring Unit> irq 46 on simplebus0 gpioled0: <GPIO LEDs> on ofwbus0 gpioled0: <led1> failed to map pin cpulist0: <Open Firmware CPU Group> on ofwbus0 cpu0: <Open Firmware CPU> on cpulist0 cpu1: <Open Firmware CPU> on cpulist0 cpu2: <Open Firmware CPU> on cpulist0 cpu3: <Open Firmware CPU> on cpulist0 cryptosoft0: <software crypto> Timecounters tick every 1.000 msec usbus0: 480Mbps High Speed USB v2.0 ugen0.1: <DWCOTG OTG Root HUB> at usbus0 uhub0: <DWCOTG OTG Root HUB, class 9/0, rev 2.00/1.00, addr 1> on usbus0 bcmrng0: Too many underruns, resetting bcmrng0: RNG stalled, disabling device bcmrng0: Too many underruns, resetting bcmrng0: RNG stalled, disabling device bcmrng0: Too many underruns, resetting bcmrng0: RNG stalled, disabling device --=20 You are receiving this mail because: You are the assignee for the bug.=
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