mmc报错

lp1982sdu

有没有人碰到过，板子运行过程当中报mmc2的内核错误？

djh

用的是出厂镜像吗？有具体的报错信息吗？

lp1982sdu

[  472.895394] mmc2: Timeout waiting for hardware interrupt.
[  472.900810] mmc2: sdhci: ============ SDHCI REGISTER DUMP ===========
[  472.907253] mmc2: sdhci: Sys addr:  0x55464a00 | Version:  0x00000002
[  472.913692] mmc2: sdhci: Blk size:  0x00000200 | Blk cnt:  0x00000001
[  472.920132] mmc2: sdhci: Argument:  0x00004104 | Trn mode: 0x00000003
[  472.926572] mmc2: sdhci: Present:   0x01f8810f | Host ctl: 0x00000011
[  472.933012] mmc2: sdhci: Power:     0x00000002 | Blk gap:  0x00000080
[  472.939452] mmc2: sdhci: Wake-up:   0x00000008 | Clock:    0x000020ff
[  472.945891] mmc2: sdhci: Timeout:   0x0000008f | Int stat: 0x00018000
[  472.952331] mmc2: sdhci: Int enab:  0x107f100b | Sig enab: 0x107f100b
[  472.958770] mmc2: sdhci: AC12 err:  0x00000000 | Slot int: 0x00000502
[  472.965211] mmc2: sdhci: Caps:      0x07eb0000 | Caps_1:   0x0000b407
[  472.971650] mmc2: sdhci: Cmd:       0x0000183a | Max curr: 0x00ffffff
[  472.978090] mmc2: sdhci: Resp[0]:   0x40ff8080 | Resp[1]:  0xffffffff
[  472.984530] mmc2: sdhci: Resp[2]:   0x328f5903 | Resp[3]:  0x00000900
[  472.990968] mmc2: sdhci: Host ctl2: 0x00000000
[  472.995412] mmc2: sdhci: ADMA Err:  0x00000000 | ADMA Ptr: 0x5608f208
[  473.001850] mmc2: sdhci: ============================================

lp1982sdu

是出厂镜像，我在上面尝试跑应用就内核报错。

lp1982sdu

# [  401.215391] mmc2: Timeout waiting for hardware cmd interrupt.
[  401.221155] mmc2: sdhci: ============ SDHCI REGISTER DUMP ===========
[  401.227598] mmc2: sdhci: Sys addr:  0x00000000 | Version:  0x00000002
[  401.234038] mmc2: sdhci: Blk size:  0x00000200 | Blk cnt:  0x00000000
[  401.240477] mmc2: sdhci: Argument:  0x00010000 | Trn mode: 0x00000023
[  401.246918] mmc2: sdhci: Present:   0x01f88008 | Host ctl: 0x00000031
[  401.253357] mmc2: sdhci: Power:     0x00000002 | Blk gap:  0x00000080
[  401.259797] mmc2: sdhci: Wake-up:   0x00000008 | Clock:    0x0000001f
[  401.266237] mmc2: sdhci: Timeout:   0x0000008f | Int stat: 0x00000001
[  401.272677] mmc2: sdhci: Int enab:  0x107f100b | Sig enab: 0x107f100b
[  401.279117] mmc2: sdhci: AC12 err:  0x00000000 | Slot int: 0x00000502
[  401.285556] mmc2: sdhci: Caps:      0x07eb0000 | Caps_1:   0x0000b407
[  401.291996] mmc2: sdhci: Cmd:       0x00000d1a | Max curr: 0x00ffffff
[  401.298436] mmc2: sdhci: Resp[0]:   0x00000900 | Resp[1]:  0xffffffff
[  401.304875] mmc2: sdhci: Resp[2]:   0x328f5903 | Resp[3]:  0x00000900
[  401.311314] mmc2: sdhci: Host ctl2: 0x00000088
[  401.315758] mmc2: sdhci: ADMA Err:  0x00000000 | ADMA Ptr: 0x00000000
[  401.322197] mmc2: sdhci: ============================================
[  401.328734] mmcblk2: error -110 sending status command, aborting

djh

lp1982sdu 发表于 2021-9-26 15:00
# [  401.215391] mmc2: Timeout waiting for hardware cmd interrupt.
[  401.221155] mmc2: sdhci: ==== ...

您用的是8MM吗？
是每次跑应用程序都会报错吗？
应用程序做了哪些操作啊？

lp1982sdu

是的。我尝试在上面跑了jailhouse,那个嵌入式的虚拟机静态分区工具。100%会报这个错。上面还有一点信息。
[  189.433994] CPU2: shutdown                                 
[  189.436716] psci: CPU2 killed.                             
[  189.477903] CPU3: shutdown                                   
[  189.480633] psci: CPU3 killed.
Adding virtual PCI device 00:00.0 to cell "linux-inmate-demo"
[  189.610041] Detected VIPT I-cache on CPU2
[  189.610073] GICv3: CPU2: found redistributor 2 region 0:0x00000000388c0000
[  189.610127] CPU2: Booted secondary processor [410fd034]
[  189.641751] Detected VIPT I-cache on CPU3
[  189.641783] GICv3: CPU3: found redistributor 3 region 0:0x00000000388e0000
[  189.641833] CPU3: Booted secondary processor [410fd034]

lp1982sdu

jailhouse 大概会分配CPU MM 虚拟一些pci 设备，映射些中断，这些操作。

djh

lp1982sdu 发表于 2021-9-27 17:42
是的。我尝试在上面跑了jailhouse,那个嵌入式的虚拟机静态分区工具。100%会报这个错。上面还有一点信息。
...

这个不清楚原因，您在网上找找看有其他人遇到过没。可以看看应用程序的实现逻辑