Re: [PATCH v2] of/irq: Make sure to update out_irq->np to the new parent in of_irq_parse_raw

[WHR]

> On Mon, Jul 29, 2024 at 11:54 PM WHR <whr@xxxxxxxxxxx> wrote:
>>
>> Commit 935df1bd40d43c4ee91838c42a20e9af751885cc has removed an
>> assignment statement for 'out_irq->np' right after label 'skiplevel',
>> causing the new parent acquired from function of_irq_find_parent didn't
>> being stored to 'out_irq->np' as it supposed to. Under some conditions
>> this can resuit in multiple corruptions and leakages to device nodes.
> 
> Under what conditions? Please provide a specific platform and DT.

I have a previous email sent to you before I came up with the fix. The kernel
log for debugging and the device tree blob are attached again.

> Honestly, I think the DT is wrong if you get to this point. We'd have
> to have the initial interrupt parent with #interrupt-cells, but not an
> interrupt-controller nor interrupt-map property to get here. Maybe
> that happens in some ancient platform, but if so, I want to know which
> one and what exactly we need to handle.

So you suggest the #interrupt-cells is erroneous in that node, and should be
removed?

This is a device vendor-provided DT, so any issue in it will have to be fixed
locally.


I forgot to attach the files in last email.[    2.235812] OF: next: usbdrd, reference count 4
[    2.240791] function: fw_devlink_parse_fwtree(ffffffd9ffdc5fa0)
[    2.247292] ffffffd9ffdc5f88 usbdrd, reference count 4
[    2.252937] parent ffffffd9ffdbddc8 soc, reference count 79
[    2.259069] usbdrd Linked as a fwnode consumer to clock-controller
[    2.265904] usbdrd Linked as a fwnode consumer to reset-controller
[    2.272744] ffffffd9ffdc5f88 usbdrd, reference count 4
[    2.278388] parent ffffffd9ffdbddc8 soc, reference count 79
[    2.284511] OF: ffffffd9ffdc5f88 usbdrd, reference count 4
[    2.290537] OF: of_get_next_available_child: "usbdrd", "usbdrd"
[    2.297038] OF: parent: usbdrd, reference count 4
[    2.302208] OF: parent: usbdrd, reference count 4
[    2.307368] OF: next: usb@10100000, reference count 3
[    2.312918] function: fw_devlink_parse_fwtree(ffffffd9ffdc6700)
[    2.319420] ffffffd9ffdc66e8 usb, reference count 3
[    2.324778] parent ffffffd9ffdc5f88 usbdrd, reference count 4
[    2.331118] usb@10100000 Linked as a fwnode consumer to usbdrd
[    2.337572] ffffffd9ffdc66e8 usb, reference count 3
[    2.342931] parent ffffffd9ffdc5f88 usbdrd, reference count 1
[    2.349244] OF: ffffffd9ffdc66e8 usb, reference count 3
[    2.354984] OF: of_get_next_available_child: "usb", "usb@10100000"
[    2.361772] OF: parentparent: usbdrd, reference count 1
[    2.367513] OF: parent: usb@10100000, reference count 3
[    2.373254] OF: parentparent: usbdrd, reference count 1
[    2.378985] OF: parent: usb@10100000, reference count 3
[    2.384726] OF: ffffffd9ffdc5f88 usbdrd, reference count 1
[    2.390752] OF: of_get_next_available_child: "usbdrd", "usbdrd"
[    2.397253] OF: parent: usbdrd, reference count 1
[    2.402422] OF: parent: usbdrd, reference count 1
[    2.407581] OF: prev: usb@10100000, reference count 3
[    2.413131] OF: of_get_next_available_child: "soc", "soc"
[    2.419061] OF: parent: soc, reference count 79
[    2.424041] OF: parent: soc, reference count 79
[    2.429010] OF: prev: usbdrd, reference count 1
[    2.433977] OF: next: multi-phyctrl@10210000, reference count 3
[    2.440527] OF: of_node_release: usbdrd
[    2.444731] OF: ERROR: Bad of_node_put() on usbdrd
[    2.449986] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.1.101-rivoreo-starfive #14
[    2.458294] Hardware name: StarFive VisionFive V2 (DT)
[    2.463928] Call Trace:
[    2.466606] [<ffffffff80003db2>] dump_backtrace+0x1c/0x24
[    2.472539] [<ffffffff804c94ee>] show_stack+0x2e/0x38
[    2.478086] [<ffffffff804d3dd8>] dump_stack_lvl+0x3c/0x54
[    2.484013] [<ffffffff804d3e04>] dump_stack+0x14/0x1c
[    2.489557] [<ffffffff804d2610>] of_node_release+0x40/0xf2
[    2.495578] [<ffffffff804b6090>] kobject_put+0x76/0xac
[    2.501220] [<ffffffff803763ae>] of_node_put+0x16/0x20
[    2.506860] [<ffffffff803725fe>] of_get_next_available_child+0x12a/0x152
[    2.514218] [<ffffffff80375430>] of_fwnode_get_next_child_node+0x86/0x9a
[    2.521577] [<ffffffff802c7b0a>] fwnode_get_next_child_node+0x28/0x36
[    2.528652] [<ffffffff802c7c64>] fwnode_get_next_available_child_node+0x1e/0x3a
[    2.536677] [<ffffffff802bebf0>] fw_devlink_parse_fwtree+0x10c/0x130
[    2.543653] [<ffffffff802bf936>] device_add+0x42e/0x562
[    2.549388] [<ffffffff80373b44>] of_device_add+0x22/0x2a
[    2.555219] [<ffffffff80374090>] of_platform_device_create_pdata+0x76/0x9a
[    2.562766] [<ffffffff8037445e>] of_platform_bus_create+0x218/0x288
[    2.569646] [<ffffffff803745c4>] of_platform_populate+0x58/0x90
[    2.576145] [<ffffffff80374614>] of_platform_default_populate+0x18/0x20
[    2.583407] [<ffffffff806246fe>] of_platform_default_populate_init+0xac/0xda
[    2.591149] [<ffffffff80001112>] do_one_initcall+0x5c/0x154
[    2.597264] [<ffffffff806010ca>] kernel_init_freeable+0x21e/0x222
[    2.603953] [<ffffffff804d4358>] kernel_init+0x1e/0x10a
[    2.609689] [<ffffffff800022b8>] ret_from_exception+0x0/0x16
[    2.615915] function: fw_devlink_parse_fwtree(ffffffd9ffdc6b90)
[    2.622429] OF: of_get_next_available_child: "multi-phyctrl", "multi-phyctrl@10210000"
[    2.631125] OF: parent: multi-phyctrl@10210000, reference count 3
[    2.637819] OF: parent: multi-phyctrl@10210000, reference count 3
[    2.644514] OF: of_get_next_available_child: "soc", "soc"
[    2.650444] OF: parent: soc, reference count 78
[    2.655423] OF: parent: soc, reference count 78
[    2.660392] OF: prev: multi-phyctrl@10210000, reference count 3
[    2.666885] OF: next: pcie1-phyctrl@10220000, reference count 3
[    2.673416] clock-controller Linked as a fwnode consumer to osc
[    2.679925] clock-controller Linked as a fwnode consumer to gmac1_rmii_refin
[    2.687674] clock-controller Linked as a fwnode consumer to gmac1_rgmii_rxin
[    2.695423] clock-controller Linked as a fwnode consumer to i2stx_bclk_ext
[    2.702983] clock-controller Linked as a fwnode consumer to i2stx_lrck_ext
[    2.710544] clock-controller Linked as a fwnode consumer to i2srx_bclk_ext
[    2.718105] clock-controller Linked as a fwnode consumer to i2srx_lrck_ext
[    2.725667] clock-controller Linked as a fwnode consumer to tdm_ext
[    2.732562] clock-controller Linked as a fwnode consumer to mclk_ext
[    2.739553] clock-controller Linked as a fwnode consumer to jtag_tck_inner
[    2.747124] clock-controller Linked as a fwnode consumer to bist_apb
[    2.754118] clock-controller Linked as a fwnode consumer to clk_rtc
[    2.761016] clock-controller Linked as a fwnode consumer to gmac0_rmii_refin
[    2.768773] clock-controller Linked as a fwnode consumer to gmac0_rgmii_rxin
[    2.776579] xrp Linked as a fwnode consumer to clock-controller
[    2.783094] xrp Linked as a fwnode consumer to reset-controller
[    2.789666] i2c@12050000 Linked as a fwnode consumer to clock-controller
[    2.797044] i2c@12050000 Linked as a fwnode consumer to reset-controller
[    2.804421] i2c@12050000 Linked as a fwnode consumer to plic@c000000
[    2.811441] i2c@12050000 Linked as a fwnode consumer to i2c5-pins
[    2.818317] i2c@12060000 Linked as a fwnode consumer to clock-controller
[    2.825695] i2c@12060000 Linked as a fwnode consumer to reset-controller
[    2.833072] i2c@12060000 Linked as a fwnode consumer to plic@c000000
[    2.840091] i2c@12060000 Linked as a fwnode consumer to i2c6-pins
[    2.846801] imx219@10 Linked as a fwnode consumer to clk-ext-camera
[    2.853699] imx219@10 Linked as a fwnode consumer to gpio@13040000
[    2.860515] imx219@10 Linked as a fwnode consumer to vin_sysctl@19800000
[    2.867911] imx708@1a Linked as a fwnode consumer to clk-ext-camera
[    2.874805] imx708@1a Linked as a fwnode consumer to gpio@13040000
[    2.881614] imx708@1a Linked as a fwnode consumer to vin_sysctl@19800000
[    2.889006] ov4689@36 Linked as a fwnode consumer to clk-ext-camera
[    2.895915] ov4689@36 Linked as a fwnode consumer to vin_sysctl@19800000
[    2.903313] i2stx_4ch0@120b0000 Linked as a fwnode consumer to clock-controller
[    2.911383] i2stx_4ch0@120b0000 Linked as a fwnode consumer to mclk_ext
[    2.918665] i2stx_4ch0@120b0000 Linked as a fwnode consumer to reset-controller
[    2.926723] i2stx_4ch0@120b0000 Linked as a fwnode consumer to mclk_ext_pins
[    2.934493] pwm@120d0000 Linked as a fwnode consumer to clock-controller
[    2.941862] pwm@120d0000 Linked as a fwnode consumer to reset-controller
[    2.949247] pwm@120d0000 Linked as a fwnode consumer to pwm-pins
[    2.955873] tmon@120e0000 Linked as a fwnode consumer to plic@c000000
[    2.962959] tmon@120e0000 Linked as a fwnode consumer to clock-controller
[    2.970438] tmon@120e0000 Linked as a fwnode consumer to reset-controller
[    2.977944] spi@13010000 Linked as a fwnode consumer to plic@c000000
[    2.984934] spi@13010000 Linked as a fwnode consumer to clock-controller
[    2.992327] spi@13010000 Linked as a fwnode consumer to reset-controller
[    2.999815] gpio@13040000 Linked as a fwnode consumer to clock-controller
[    3.007280] gpio@13040000 Linked as a fwnode consumer to reset-controller
[    3.014752] gpio@13040000 Linked as a fwnode consumer to plic@c000000
[    3.023112] timer@13050000 Linked as a fwnode consumer to plic@c000000
[    3.030322] timer@13050000 Linked as a fwnode consumer to clock-controller
[    3.037906] timer@13050000 Linked as a fwnode consumer to reset-controller
[    3.045502] mailbox@13060000 Linked as a fwnode consumer to clock-controller
[    3.053256] mailbox@13060000 Linked as a fwnode consumer to reset-controller
[    3.061017] mailbox@13060000 Linked as a fwnode consumer to plic@c000000
[    3.068424] wdog@13070000 Linked as a fwnode consumer to plic@c000000
[    3.075514] wdog@13070000 Linked as a fwnode consumer to clock-controller
[    3.082986] wdog@13070000 Linked as a fwnode consumer to reset-controller
[    3.090484] jpu@13090000 Linked as a fwnode consumer to plic@c000000
[    3.097473] jpu@13090000 Linked as a fwnode consumer to clock-controller
[    3.104860] jpu@13090000 Linked as a fwnode consumer to reset-controller
[    3.112241] jpu@13090000 Linked as a fwnode consumer to power-controller@17030000
[    3.120494] vpu_dec@130A0000 Linked as a fwnode consumer to plic@c000000
[    3.127866] vpu_dec@130A0000 Linked as a fwnode consumer to clock-controller
[    3.135640] vpu_dec@130A0000 Linked as a fwnode consumer to reset-controller
[    3.143415] vpu_dec@130A0000 Linked as a fwnode consumer to power-controller@17030000
[    3.152049] vpu_enc@130B0000 Linked as a fwnode consumer to plic@c000000
[    3.159421] vpu_enc@130B0000 Linked as a fwnode consumer to clock-controller
[    3.167196] vpu_enc@130B0000 Linked as a fwnode consumer to reset-controller
[    3.174972] vpu_enc@130B0000 Linked as a fwnode consumer to power-controller@17030000
[    3.183613] crypto@16000000 Linked as a fwnode consumer to plic@c000000
[    3.190902] crypto@16000000 Linked as a fwnode consumer to clock-controller
[    3.198566] crypto@16000000 Linked as a fwnode consumer to reset-controller
[    3.206276] sec_dma@16008000 Linked as a fwnode consumer to plic@c000000
[    3.213648] sec_dma@16008000 Linked as a fwnode consumer to clock-controller
[    3.221406] sec_dma@16008000 Linked as a fwnode consumer to reset-controller
[    3.229191] trng@1600C000 Linked as a fwnode consumer to clock-controller
[    3.236663] trng@1600C000 Linked as a fwnode consumer to reset-controller
[    3.244135] trng@1600C000 Linked as a fwnode consumer to plic@c000000
[    3.251238] mmc@16010000 Linked as a fwnode consumer to clock-controller
[    3.258615] mmc@16010000 Linked as a fwnode consumer to reset-controller
[    3.265997] mmc@16010000 Linked as a fwnode consumer to plic@c000000
[    3.273044] mmc@16010000 Linked as a fwnode consumer to DCDC1
[    3.279369] mmc@16010000 Linked as a fwnode consumer to ALDO4
[    3.285693] mmc@16010000 Linked as a fwnode consumer to mmc0-pins
[    3.292411] mmc@16020000 Linked as a fwnode consumer to clock-controller
[    3.299788] mmc@16020000 Linked as a fwnode consumer to reset-controller
[    3.307168] mmc@16020000 Linked as a fwnode consumer to plic@c000000
[    3.314205] mmc@16020000 Linked as a fwnode consumer to sdcard1-pins
[    3.321214] ethernet@16030000 Linked as a fwnode consumer to clock-controller
[    3.329097] ethernet@16030000 Linked as a fwnode consumer to reset-controller
[    3.336959] ethernet@16030000 Linked as a fwnode consumer to plic@c000000
[    3.344552] ethernet@16040000 Linked as a fwnode consumer to clock-controller
[    3.352433] ethernet@16040000 Linked as a fwnode consumer to reset-controller
[    3.360295] ethernet@16040000 Linked as a fwnode consumer to plic@c000000
[    3.367881] dma-controller@16050000 Linked as a fwnode consumer to clock-controller
[    3.376312] dma-controller@16050000 Linked as a fwnode consumer to reset-controller
[    3.384746] dma-controller@16050000 Linked as a fwnode consumer to plic@c000000
[    3.392840] gpio@17020000 Linked as a fwnode consumer to reset-controller
[    3.400312] gpio@17020000 Linked as a fwnode consumer to plic@c000000
[    3.407427] power-controller@17030000 Linked as a fwnode consumer to plic@c000000
[    3.415683] rtc@17040000 Linked as a fwnode consumer to plic@c000000
[    3.422692] rtc@17040000 Linked as a fwnode consumer to clock-controller
[    3.430070] rtc@17040000 Linked as a fwnode consumer to reset-controller
[    3.437471] gpu@18000000 Linked as a fwnode consumer to clock-controller
[    3.444871] gpu@18000000 Linked as a fwnode consumer to reset-controller
[    3.452247] gpu@18000000 Linked as a fwnode consumer to power-controller@17030000
[    3.460482] gpu@18000000 Linked as a fwnode consumer to plic@c000000
[    3.467493] vin_sysctl@19800000 Linked as a fwnode consumer to clock-controller@19810000
[    3.476491] vin_sysctl@19800000 Linked as a fwnode consumer to clock-controller
[    3.484556] vin_sysctl@19800000 Linked as a fwnode consumer to reset-controller
[    3.492704] vin_sysctl@19800000 Linked as a fwnode consumer to power-controller@17030000
[    3.501607] vin_sysctl@19800000 Linked as a fwnode consumer to plic@c000000
[    3.509335] vin_sysctl@19800000 Linked as a fwnode consumer to imx219@10
[    3.516734] vin_sysctl@19800000 Linked as a fwnode consumer to imx708@1a
[    3.524132] vin_sysctl@19800000 Linked as a fwnode consumer to ov4689@36
[    3.531531] clock-controller@19810000 Linked as a fwnode consumer to clock-controller
[    3.540158] clock-controller@19810000 Linked as a fwnode consumer to reset-controller
[    3.548778] clock-controller@19810000 Linked as a fwnode consumer to power-controller@17030000
[    3.558271] dc8200@29400000 Linked as a fwnode consumer to plic@c000000
[    3.565547] dc8200@29400000 Linked as a fwnode consumer to clock-controller
[    3.573215] dc8200@29400000 Linked as a fwnode consumer to clock-controller@295C0000
[    3.581783] dc8200@29400000 Linked as a fwnode consumer to hdmitx0_pixelclk
[    3.589490] dc8200@29400000 Linked as a fwnode consumer to reset-controller
[    3.597210] dc8200@29400000 Linked as a fwnode consumer to hdmi@29590000
[    3.604592] dc8200@29400000 Linked as a fwnode consumer to dsi-output
[    3.611697] hdmi@29590000 Linked as a fwnode consumer to plic@c000000
[    3.618781] hdmi@29590000 Linked as a fwnode consumer to clock-controller@295C0000
[    3.627110] hdmi@29590000 Linked as a fwnode consumer to hdmitx0_pixelclk
[    3.634581] hdmi@29590000 Linked as a fwnode consumer to reset-controller
[    3.642059] hdmi@29590000 Linked as a fwnode consumer to inno_hdmi-pins
[    3.649334] hdmi@29590000 Linked as a fwnode consumer to gpio@13040000
[    3.656535] hdmi@29590000 Linked as a fwnode consumer to dc8200@29400000
[    3.663933] clock-controller@295C0000 Linked as a fwnode consumer to hdmitx0_pixelclk
[    3.672539] clock-controller@295C0000 Linked as a fwnode consumer to mipitx_dphy_rxesc
[    3.681249] clock-controller@295C0000 Linked as a fwnode consumer to mipitx_dphy_txbytehs
[    3.690239] clock-controller@295C0000 Linked as a fwnode consumer to clock-controller
[    3.698860] clock-controller@295C0000 Linked as a fwnode consumer to reset-controller
[    3.707475] clock-controller@295C0000 Linked as a fwnode consumer to power-controller@17030000
[    3.716965] mipi@295d0000 Linked as a fwnode consumer to plic@c000000
[    3.724053] mipi@295d0000 Linked as a fwnode consumer to clock-controller@295C0000
[    3.732394] mipi@295d0000 Linked as a fwnode consumer to reset-controller
[    3.739889] mipi@295d0000 Linked as a fwnode consumer to mipi-dphy@295e0000
[    3.747585] mipi@295d0000 Linked as a fwnode consumer to seeed_plane_i2c@45
[    3.755255] mipi@295d0000 Linked as a fwnode consumer to panel_radxa@19
[    3.762546] mipi@295d0000 Linked as a fwnode consumer to dsi-output
[    3.769459] mipi-dphy@295e0000 Linked as a fwnode consumer to clock-controller@295C0000
[    3.778265] mipi-dphy@295e0000 Linked as a fwnode consumer to reset-controller
[    3.786276] pcie@2B000000 Linked as a fwnode consumer to plic@c000000
[    3.793383] pcie@2B000000 Linked as a fwnode consumer to reset-controller
[    3.800878] pcie@2B000000 Linked as a fwnode consumer to clock-controller
[    3.808368] pcie@2B000000 Linked as a fwnode consumer to pcie0_wake_default
[    3.816020] pcie@2B000000 Linked as a fwnode consumer to pcie0_clkreq_default
[    3.823868] pcie@2B000000 Linked as a fwnode consumer to gpio@13040000
[    3.831103] pcie@2C000000 Linked as a fwnode consumer to plic@c000000
[    3.838210] pcie@2C000000 Linked as a fwnode consumer to reset-controller
[    3.845706] pcie@2C000000 Linked as a fwnode consumer to clock-controller
[    3.853195] pcie@2C000000 Linked as a fwnode consumer to pcie1_wake_default
[    3.860861] pcie@2C000000 Linked as a fwnode consumer to pcie1_clkreq_default
[    3.868712] pcie@2C000000 Linked as a fwnode consumer to gpio@13040000
[    3.875910] e24 Linked as a fwnode consumer to clock-controller
[    3.882435] e24 Linked as a fwnode consumer to reset-controller
[    3.888952] e24 Linked as a fwnode consumer to plic@c000000
[    3.895090] e24 Linked as a fwnode consumer to mailbox@13060000
[    3.901632] /soc: Relaxing link with /soc/plic@c000000
[    3.907291] platform soc: Fixed dependency cycle(s) with /soc/plic@c000000
[    3.914859] platform soc: Not linking /soc/plic@c000000 - might never become dev
[    3.922992] soc Dropping the fwnode link to plic@c000000
[    3.928832] platform soc: Not linking /cpus/cpu@4/interrupt-controller - might never become dev
[    3.938399] platform soc: Not linking /cpus/cpu@3/interrupt-controller - might never become dev
[    3.947966] platform soc: Not linking /cpus/cpu@2/interrupt-controller - might never become dev
[    3.957532] platform soc: Not linking /cpus/cpu@1/interrupt-controller - might never become dev
[    3.967102] platform soc: Not linking /soc/plic@c000000 - might never become dev
[    3.975237] platform soc: Not linking /cpus/cpu@4/interrupt-controller - might never become dev
[    3.984804] platform soc: Not linking /cpus/cpu@3/interrupt-controller - might never become dev
[    3.994370] platform soc: Not linking /cpus/cpu@2/interrupt-controller - might never become dev
[    4.003937] platform soc: Not linking /cpus/cpu@1/interrupt-controller - might never become dev
[    4.013507] platform soc: Not linking /soc/plic@c000000 - might never become dev
[    4.021647] platform soc: Not linking /soc/plic@c000000 - might never become dev
[    4.029786] platform soc: Not linking /soc/plic@c000000 - might never become dev
[    4.037925] platform soc: Not linking /soc/plic@c000000 - might never become dev
[    4.046081] platform soc: Not linking /soc/plic@c000000 - might never become dev
[    4.054229] ------------[ cut here ]------------
[    4.059290] refcount_t: addition on 0; use-after-free.
[    4.064953] WARNING: CPU: 0 PID: 1 at lib/refcount.c:25 refcount_warn_saturate+0x90/0xf4
[    4.073844] Modules linked in:
[    4.077192] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.1.101-rivoreo-starfive #14
[    4.085499] Hardware name: StarFive VisionFive V2 (DT)
[    4.091132] epc : refcount_warn_saturate+0x90/0xf4
[    4.096391]  ra : refcount_warn_saturate+0x90/0xf4
[    4.101650] epc : ffffffff801d0a04 ra : ffffffff801d0a04 sp : ffffffc80400ba80
[    4.109574]  gp : ffffffff810e26c0 tp : ffffffd8bff50000 t0 : 746e756f63666572
[    4.117497]  t1 : 0000000000000072 t2 : 5f746e756f636665 s0 : ffffffc80400ba90
[    4.125420]  s1 : ffffffd9ffdc6008 a0 : 000000000000002a a1 : ffffffff8108f948
[    4.133343]  a2 : 0000000000000010 a3 : 00000000000002b3 a4 : 0000000000000000
[    4.141266]  a5 : 0000000000000000 a6 : ffffffc80400b878 a7 : ffffffc80400b868
[    4.149189]  s2 : ffffffd9ffdc5f88 s3 : ffffffd9ffdc47e0 s4 : ffffffff810e2634
[    4.157112]  s5 : 0000000200000022 s6 : ffffffd9ffdbdde0 s7 : fffffffffffffff5
[    4.165035]  s8 : 0000000000000000 s9 : 0000000000000000 s10: 0000000000000000
[    4.172957]  s11: 0000000000000000 t3 : ffffffff810f5697 t4 : ffffffff810f5697
[    4.180880]  t5 : ffffffff810f5698 t6 : ffffffff810f56c0
[    4.186705] status: 0000000200000100 badaddr: 0000000000000000 cause: 0000000000000003
[    4.195391] [<ffffffff801d0a04>] refcount_warn_saturate+0x90/0xf4
[    4.202081] [<ffffffff804b5f56>] kobject_get+0x54/0x60
[    4.207722] [<ffffffff8037638c>] of_node_get+0x1a/0x26
[    4.213360] [<ffffffff8037257c>] of_get_next_available_child+0xa8/0x152
[    4.220622] [<ffffffff80375430>] of_fwnode_get_next_child_node+0x86/0x9a
[    4.227981] [<ffffffff802c7b0a>] fwnode_get_next_child_node+0x28/0x36
[    4.235053] [<ffffffff802c7c64>] fwnode_get_next_available_child_node+0x1e/0x3a
[    4.243077] [<ffffffff802bffa8>] __fw_devlink_link_to_suppliers+0x40/0x94
[    4.250529] [<ffffffff802bf958>] device_add+0x450/0x562
[    4.256264] [<ffffffff80373b44>] of_device_add+0x22/0x2a
[    4.262094] [<ffffffff80374090>] of_platform_device_create_pdata+0x76/0x9a
[    4.269642] [<ffffffff8037445e>] of_platform_bus_create+0x218/0x288
[    4.276523] [<ffffffff803745c4>] of_platform_populate+0x58/0x90
[    4.283022] [<ffffffff80374614>] of_platform_default_populate+0x18/0x20
[    4.290283] [<ffffffff806246fe>] of_platform_default_populate_init+0xac/0xda
[    4.298023] [<ffffffff80001112>] do_one_initcall+0x5c/0x154
[    4.304138] [<ffffffff806010ca>] kernel_init_freeable+0x21e/0x222
[    4.310826] [<ffffffff804d4358>] kernel_init+0x1e/0x10a
[    4.316562] [<ffffffff800022b8>] ret_from_exception+0x0/0x16
[    4.322773] ---[ end trace 0000000000000000 ]---
[    4.327852] OF: ffffffd9ffdc5f88 usbdrd, reference count 3221225472
[    4.334741] OF: ffffffd9ffdc66e8 usb, reference count 3
[    4.340482] OF: ffffffd9ffdc5f88 usbdrd, reference count 3221225472
[    4.347368] ------------[ cut here ]------------
[    4.352428] refcount_t: underflow; use-after-free.
[    4.357697] WARNING: CPU: 0 PID: 1 at lib/refcount.c:28 refcount_warn_saturate+0xb0/0xf4
[    4.366584] Modules linked in:
[    4.369932] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G        W          6.1.101-rivoreo-starfive #14
[    4.379860] Hardware name: StarFive VisionFive V2 (DT)
[    4.385492] epc : refcount_warn_saturate+0xb0/0xf4
[    4.390751]  ra : refcount_warn_saturate+0xb0/0xf4
[    4.396010] epc : ffffffff801d0a24 ra : ffffffff801d0a24 sp : ffffffc80400ba80
[    4.403934]  gp : ffffffff810e26c0 tp : ffffffd8bff50000 t0 : 5f00000000000000
[    4.411857]  t1 : 0000000000000072 t2 : 5f746e756f636665 s0 : ffffffc80400ba90
[    4.419780]  s1 : ffffffd9ffdc6008 a0 : 0000000000000026 a1 : ffffffff8108f948
[    4.427703]  a2 : 0000000000000010 a3 : 00000000000002de a4 : 0000000000000000
[    4.435625]  a5 : 0000000000000000 a6 : ffffffc80400b878 a7 : ffffffc80400b868
[    4.443548]  s2 : ffffffd9ffdc6b78 s3 : ffffffd9ffdc5f88 s4 : ffffffff810e2634
[    4.451471]  s5 : 0000000200000022 s6 : ffffffd9ffdbdde0 s7 : fffffffffffffff5
[    4.459394]  s8 : 0000000000000000 s9 : 0000000000000000 s10: 0000000000000000
[    4.467317]  s11: 0000000000000000 t3 : ffffffff810f5697 t4 : ffffffff810f5697
[    4.475239]  t5 : ffffffff810f5698 t6 : ffffffff810f56b8
[    4.481063] status: 0000000200000100 badaddr: 0000000000000000 cause: 0000000000000003
[    4.489748] [<ffffffff801d0a24>] refcount_warn_saturate+0xb0/0xf4
[    4.496438] [<ffffffff804b60b4>] kobject_put+0x9a/0xac
[    4.502080] [<ffffffff803763ae>] of_node_put+0x16/0x20
[    4.507717] [<ffffffff803725fe>] of_get_next_available_child+0x12a/0x152
[    4.515074] [<ffffffff80375430>] of_fwnode_get_next_child_node+0x86/0x9a
[    4.522433] [<ffffffff802c7b0a>] fwnode_get_next_child_node+0x28/0x36
[    4.529505] [<ffffffff802c7c64>] fwnode_get_next_available_child_node+0x1e/0x3a
[    4.537530] [<ffffffff802bffa8>] __fw_devlink_link_to_suppliers+0x40/0x94
[    4.544982] [<ffffffff802bf958>] device_add+0x450/0x562
[    4.550716] [<ffffffff80373b44>] of_device_add+0x22/0x2a
[    4.556547] [<ffffffff80374090>] of_platform_device_create_pdata+0x76/0x9a
[    4.564094] [<ffffffff8037445e>] of_platform_bus_create+0x218/0x288
[    4.570974] [<ffffffff803745c4>] of_platform_populate+0x58/0x90
[    4.577473] [<ffffffff80374614>] of_platform_default_populate+0x18/0x20
[    4.584735] [<ffffffff806246fe>] of_platform_default_populate_init+0xac/0xda
[    4.592475] [<ffffffff80001112>] do_one_initcall+0x5c/0x154
[    4.598589] [<ffffffff806010ca>] kernel_init_freeable+0x21e/0x222
[    4.605278] [<ffffffff804d4358>] kernel_init+0x1e/0x10a
[    4.611013] [<ffffffff800022b8>] ret_from_exception+0x0/0x16
[    4.617224] ---[ end trace 0000000000000000 ]---
[    4.622303] platform soc: Not linking /gmac0_rgmii_rxin - might never become dev
[    4.630434] platform soc: Not linking /gmac0_rmii_refin - might never become dev
[    4.638564] platform soc: Not linking /clk_rtc - might never become dev
[    4.645827] platform soc: Not linking /bist_apb - might never become dev
[    4.653194] platform soc: Not linking /jtag_tck_inner - might never become dev
[    4.661132] platform soc: Not linking /mclk_ext - might never become dev
[    4.668499] platform soc: Not linking /tdm_ext - might never become dev
[    4.675770] platform soc: Not linking /i2srx_lrck_ext - might never become dev
[    4.683709] platform soc: Not linking /i2srx_bclk_ext - might never become dev
[    4.691648] platform soc: Not linking /i2stx_lrck_ext - might never become dev
[    4.699594] platform soc: Not linking /i2stx_bclk_ext - might never become dev
[    4.707532] platform soc: Not linking /gmac1_rgmii_rxin - might never become dev
[    4.715662] platform soc: Not linking /gmac1_rmii_refin - might never become dev
[    4.723791] platform soc: Not linking /osc - might never become dev
[    4.730698] platform soc: Not linking /soc/plic@c000000 - might never become dev
[    4.738852] platform soc: Not linking /soc/plic@c000000 - might never become dev
[    4.746991] platform soc: Not linking /clk-ext-camera - might never become dev
[    4.754938] platform soc: Not linking /clk-ext-camera - might never become dev
[    4.762883] platform soc: Not linking /clk-ext-camera - might never become dev
[    4.770833] platform soc: Not linking /mclk_ext - might never become dev
[    4.778214] platform soc: Not linking /soc/plic@c000000 - might never become dev
[    4.786351] platform soc: Not linking /soc/plic@c000000 - might never become dev
[    4.794488] platform soc: Not linking /soc/plic@c000000 - might never become dev
[    4.802770] platform soc: Not linking /soc/plic@c000000 - might never become dev
[    4.810907] platform soc: Not linking /soc/plic@c000000 - might never become dev
[    4.819047] platform soc: Not linking /soc/plic@c000000 - might never become dev
[    4.827185] platform soc: Not linking /soc/plic@c000000 - might never become dev
[    4.835323] platform soc: Not linking /soc/plic@c000000 - might never become dev
[    4.843462] platform soc: Not linking /soc/plic@c000000 - might never become dev
[    4.851601] platform soc: Not linking /soc/plic@c000000 - might never become dev
[    4.859739] platform soc: Not linking /soc/plic@c000000 - might never become dev
[    4.867874] platform soc: Not linking /soc/plic@c000000 - might never become dev
[    4.876017] platform soc: Not linking /soc/plic@c000000 - might never become dev
[    4.884156] platform soc: Not linking /soc/plic@c000000 - might never become dev
[    4.892295] platform soc: Not linking /soc/plic@c000000 - might never become dev
[    4.900435] platform soc: Not linking /soc/plic@c000000 - might never become dev
[    4.908575] platform soc: Not linking /soc/plic@c000000 - might never become dev
[    4.916714] platform soc: Not linking /soc/plic@c000000 - might never become dev
[    4.924850] platform soc: Not linking /soc/plic@c000000 - might never become dev
[    4.932986] platform soc: Not linking /soc/plic@c000000 - might never become dev
[    4.941121] platform soc: Not linking /soc/plic@c000000 - might never become dev
[    4.949271] platform soc: Not linking /soc/plic@c000000 - might never become dev
[    4.957493] platform soc: Linked as a sync state only consumer to dsi-output
[    4.965243] platform soc: Not linking /hdmitx0_pixelclk - might never become dev
[    4.973375] platform soc: Not linking /soc/plic@c000000 - might never become dev
[    4.981521] platform soc: Not linking /hdmitx0_pixelclk - might never become dev
[    4.989652] platform soc: Not linking /soc/plic@c000000 - might never become dev
[    4.997795] platform soc: Not linking /mipitx_dphy_txbytehs - might never become dev
[    5.006306] platform soc: Not linking /mipitx_dphy_rxesc - might never become dev
[    5.014531] platform soc: Not linking /hdmitx0_pixelclk - might never become dev
[    5.022670] platform soc: Not linking /soc/plic@c000000 - might never become dev
[    5.030824] platform soc: Not linking /soc/plic@c000000 - might never become dev
[    5.038966] platform soc: Not linking /soc/plic@c000000 - might never become dev
[    5.047104] platform soc: Not linking /soc/plic@c000000 - might never become dev
[    5.055382] platform 2000000.clint: Not linking /cpus/cpu@4/interrupt-controller - might never become dev
[    5.065905] clint@2000000 Dropping the fwnode link to interrupt-controller
[    5.073461] platform 2000000.clint: Not linking /cpus/cpu@3/interrupt-controller - might never become dev
[    5.083979] clint@2000000 Dropping the fwnode link to interrupt-controller
[    5.091535] platform 2000000.clint: Not linking /cpus/cpu@2/interrupt-controller - might never become dev
[    5.102054] clint@2000000 Dropping the fwnode link to interrupt-controller
[    5.109611] platform 2000000.clint: Not linking /cpus/cpu@1/interrupt-controller - might never become dev
[    5.120129] clint@2000000 Dropping the fwnode link to interrupt-controller
[    5.127866] platform 2010000.cache-controller: Not linking /soc/plic@c000000 - might never become dev
[    5.138003] cache-controller@2010000 Dropping the fwnode link to plic@c000000
[    5.145996] platform 10000000.serial: Not linking /soc/plic@c000000 - might never become dev
[    5.155274] serial@10000000 Dropping the fwnode link to plic@c000000
[    5.162410] platform 10010000.serial: Not linking /soc/plic@c000000 - might never become dev
[    5.171688] serial@10010000 Dropping the fwnode link to plic@c000000
[    5.178832] platform 10030000.i2c: Not linking /soc/plic@c000000 - might never become dev
[    5.187825] i2c@10030000 Dropping the fwnode link to plic@c000000
[    5.194688] platform 10050000.i2c: Not linking /soc/plic@c000000 - might never become dev
[    5.203680] i2c@10050000 Dropping the fwnode link to plic@c000000
[    5.210551] amba 10060000.spi: Not linking /soc/plic@c000000 - might never become dev
[    5.219163] spi@10060000 Dropping the fwnode link to plic@c000000
[    5.226052] ------------[ cut here ]------------
[    5.231114] refcount_t: saturated; leaking memory.
[    5.236383] WARNING: CPU: 0 PID: 1 at lib/refcount.c:22 refcount_warn_saturate+0x70/0xf4
[    5.245271] Modules linked in:
[    5.248619] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G        W          6.1.101-rivoreo-starfive #14
[    5.258547] Hardware name: StarFive VisionFive V2 (DT)
[    5.264180] epc : refcount_warn_saturate+0x70/0xf4
[    5.269440]  ra : refcount_warn_saturate+0x70/0xf4
[    5.274699] epc : ffffffff801d09e4 ra : ffffffff801d09e4 sp : ffffffc80400bc30
[    5.282623]  gp : ffffffff810e26c0 tp : ffffffd8bff50000 t0 : 5f00000000000000
[    5.290547]  t1 : 0000000000000072 t2 : 5f746e756f636665 s0 : ffffffc80400bc40
[    5.298469]  s1 : ffffffd9ffdc6008 a0 : 0000000000000026 a1 : ffffffff8108f948
[    5.306393]  a2 : 0000000000000010 a3 : 0000000000000350 a4 : 0000000000000000
[    5.314316]  a5 : 0000000000000000 a6 : ffffffc80400ba28 a7 : ffffffc80400ba18
[    5.322239]  s2 : ffffffd9ffdc5948 s3 : ffffffd8bfef4410 s4 : 0000000000000000
[    5.330162]  s5 : 0000000000000000 s6 : ffffffff80acbfb8 s7 : 0000000000000001
[    5.338084]  s8 : 0000000000000000 s9 : 0000000000000000 s10: 0000000000000000
[    5.346007]  s11: 0000000000000000 t3 : ffffffff810f5697 t4 : ffffffff810f5697
[    5.353929]  t5 : ffffffff810f5698 t6 : ffffffff810f56b8
[    5.359754] status: 0000000200000100 badaddr: 0000000000000000 cause: 0000000000000003
[    5.368440] [<ffffffff801d09e4>] refcount_warn_saturate+0x70/0xf4
[    5.375130] [<ffffffff804b5f56>] kobject_get+0x54/0x60
[    5.380771] [<ffffffff8037638c>] of_node_get+0x1a/0x26
[    5.386410] [<ffffffff8037163a>] of_get_next_child+0x36/0x62
[    5.392623] [<ffffffff803744ae>] of_platform_bus_create+0x268/0x288
[    5.399503] [<ffffffff803745c4>] of_platform_populate+0x58/0x90
[    5.406002] [<ffffffff80374614>] of_platform_default_populate+0x18/0x20
[    5.413263] [<ffffffff806246fe>] of_platform_default_populate_init+0xac/0xda
[    5.421004] [<ffffffff80001112>] do_one_initcall+0x5c/0x154
[    5.427118] [<ffffffff806010ca>] kernel_init_freeable+0x21e/0x222
[    5.433806] [<ffffffff804d4358>] kernel_init+0x1e/0x10a
[    5.439542] [<ffffffff800022b8>] ret_from_exception+0x0/0x16
[    5.445753] ---[ end trace 0000000000000000 ]---
[    5.450912] platform 10210000.usbdrd: Error -2 creating of_node link
[    5.457955] ffffffd9ffdc5f88 usbdrd, reference count 3221225472
[    5.464460] parent ffffffd9ffdbddc8 soc, reference count 78
[    5.470582] ffffffd9ffdc5f88 usbdrd, reference count 3221225472
[    5.477085] parent ffffffd9ffdbddc8 soc, reference count 78
[    5.483206] OF: ffffffd9ffdc5f88 usbdrd, reference count 3221225472
[    5.490092] ffffffd9ffdc66e8 usb, reference count 3
[    5.495450] parent ffffffd9ffdc5f88 usbdrd, reference count 3221225472
[    5.502621] ffffffd9ffdc66e8 usb, reference count 3
[    5.507979] parent ffffffd9ffdc5f88 usbdrd, reference count 3221225472
[    5.515149] OF: ffffffd9ffdc66e8 usb, reference count 3
[    5.520890] OF: ffffffd9ffdc5f88 usbdrd, reference count 3221225472
[    5.527791] OF: ffffffd9ffdc5f88 usbdrd, reference count 3221225472
[    5.534678] OF: ffffffd9ffdc66e8 usb, reference count 3
[    5.540419] OF: ffffffd9ffdc5f88 usbdrd, reference count 3221225472
[    5.547835] devices_kset: Moving 10210000.usbdrd to end of list
[    5.554345] platform 10210000.usbdrd: Linked as a consumer to 13020000.clock-controller
[    5.563137] usbdrd Dropping the fwnode link to clock-controller
[    5.569715] devices_kset: Moving 100b0000.pwmdac to end of list
[    5.576223] platform 100b0000.pwmdac: Linked as a consumer to 13020000.clock-controller
[    5.585014] pwmdac@100b0000 Dropping the fwnode link to clock-controller
[    5.592450] devices_kset: Moving 10060000.spi to end of list
[    5.598671] amba 10060000.spi: Linked as a consumer to 13020000.clock-controllerÐ
þíÁA8´|(Å´D
'starfive,visionfive-v2starfive,jh7110&StarFive VisionFive V2
ac108_mclkfixed-clock,9
n6
bist_apbfixed-clock,9úð?I-
clk-ext-camerafixed-clock,9
n6I4
clk_rtcfixed-clock,9?I.
gmac0_rgmii_rxinfixed-clock,9sY@I0
gmac0_rmii_refinfixed-clock,9úð?I/
gmac1_rgmii_rxinfixed-clock,9sY@I)
gmac1_rmii_refinfixed-clock,9úð?I(
hdmitx0_pixelclkfixed-clock,9³Ü@II
i2srx_bclk_extfixed-clock,9»?I"
i2srx_lrck_extfixed-clock,9îI#
i2stx_bclk_extfixed-clock,9»?I*
i2stx_lrck_extfixed-clock,9îI+
jtag_tck_innerfixed-clock,9úð?I,
mclk_extfixed-clock,9»?I
mipitx_dphy_rxescfixed-clock,9???IO
mipitx_dphy_txbytehsfixed-clock,9³Ü@IP
oscfixed-clock,9
n6I'
tdm_extfixed-clock,9îI
wm8960_mclkfixed-clock,9
w
cpus
Q=	
cpu@0sifive,s7riscvdhcput@?@?@¡
²rv64imac_zba_zbb¼	ËdisabledIb
interrupt-controllerriscv,cpu-intcÒç
I
cpu@1sifive,u74-mcriscvd
ø@
@
?
%

0(hcput@?@??
;

F(
Qriscv,sv39¡
²rv64imafdc_zba_zbb
Z¼
d
x

cpu
?I
interrupt-controllerriscv,cpu-intcÒç
I
cpu@2sifive,u74-mcriscvdø@
@
?
%

0(hcput@?@??
;

F(
Qriscv,sv39¡
²rv64imafdc_zba_zbb
Z¼
d
x

cpuI
interrupt-controllerriscv,cpu-intcÒç
I
cpu@3sifive,u74-mcriscvdø@
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?
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0(hcput@?@??
;

F(
Qriscv,sv39¡
²rv64imafdc_zba_zbb
Z¼
d
x

cpuI
interrupt-controllerriscv,cpu-intcÒç
I
cpu@4sifive,u74-mcriscvdø@
@
?
%

0(hcput@?@??
;

F(
Qriscv,sv39¡
²rv64imafdc_zba_zbb
Z¼
d
x

cpuI
interrupt-controllerriscv,cpu-intcÒç
I
cpu-map
cluster0
core0
?
core1
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core2
?
core3
?
opp-table-0operating-points-v2
?I
opp-375000000
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¬5
opp-500000000
¥Íe
¬5
opp-750000000
¥,´?
¬5
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opp-1500000000
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opp-312500000
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¬5
opp-417000000
¥Úê@
¬5
opp-625000000
¥%@¾@
¬5
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opp-1250000000
¥J?|?
¬B@
display-subsystem6starfive,jh7110-displayverisilicon,display-subsystem
Æ	Ëokay
dsi-output8starfive,jh7110-display-encoderverisilicon,dsi-encoderËokay
ports

port@0d
endpoint
Ì
IL
port@1d

endpoint
ÌIT
mailbox_clientstarfive,mailbox-test
Ürxtx
ç

Ëokay
rgb-output3starfive,jh7110-rgb_outputverisilicon,rgb-encoder	Ëdisabled
ports

port@0
d
endpoint@0d
Ì	IJ
stmmac-axi-config
î
þ
?@ IA
tda988x_pinstarfive,tda998x_rgb_pin	Ëdisabled
socsimple-bus
,
)
clint@2000000
riscv,clint0d
0controlP:ç

cache-controller@2010000sifive,fu740-c000-ccachecache0d
@
0controlsidebandN
v@Y?? esI

plic@c000000riscv,plic0d0controlH:				Òç
???I

serial@10000000snps,dw-apb-uartd
¡®
x??
baudclkapb_pclk¸STN Ëokay¿defaultÍ
serial@10010000snps,dw-apb-uartd

¡®
x??
baudclkapb_pclk¸UVN!Ëokay¿defaultÍ
serial@10020000snps,dw-apb-uartd
¡®
x??
baudclkapb_pclk¸WXN"	Ëdisabled
i2c@10030000snps,designware-i2cd

x
%?	
refpclk¸LN#
Ëokay9
? ×
,ì
þ
þ¿defaultÍ
i2c@10040000snps,designware-i2cd

x
&?	
refpclk¸MN$
	Ëdisabled
i2c@10050000snps,designware-i2cd

x
'?	
refpclk¸NN%
Ëokay9
? ×
,ì
þ
þ¿defaultÍ
seeed_plane_i2c@45seeed_paneldE
port
endpoint
ÌIR
tinker_ft5406@38tinker_ft5406d8
touchscreen@14
goodix,gt911d0:
panel_radxa@19starfive_jadarddFQ
port
endpoint
ÌIS
spi@10060000arm,pl022arm,primecelld

x?	
apb_pclk¸E]rst_apbN&i"?

Ëokay¿defaultÍ
spi@0rohm,dh2228fv?
????dËokay
spi@10070000arm,pl022arm,primecelld

x?	
apb_pclk¸F]rst_apbN'i"?

	Ëdisabled
spi@10080000arm,pl022arm,primecelld

x?	
apb_pclk¸G]rst_apbN(i"?

	Ëdisabled
tdm@10090000starfive,jh7110-tdmd	,
x¸¹º»4
tdm_ahbtdm_apbtdm_internaltdmmclk_innertdm_ext¸ikj¨­rxtx·	Ëdisabled¿defaultÍ
spdif@100a0000starfive,jh7110-spdifd
,
x? *
apbcoreaudrootmclk_innermclk_extmclk¸_]apbNTÈtx·	Ëdisabled
pwmdac@100b0000starfive,jh7110-pwmdacd
x??
apb0apbcore¸`]apb¨­tx·Ëokay¿defaultÍ I]
pdm@100d0000starfive,jh7110-pdmd
0pdm
x¶·#
pdm_mclkpdm_apbclk_mclkmclk_ext¸ab]pdm_dmicpdm_apb·	Ëdisabled
i2srx_mst@100e0000starfive,jh7110-i2srx-masterd<
x¯°²³µ3
apb0apbbclk_mstlrck_mstbclklrckmclkmclk_ext¸cd	]apbbclk¨­rxØ!4·	Ëdisabled
i2srx_3ch@100e0000starfive,jh7110-i2srxdT
x¯°²³µ"#Z
apb0apbaudiorootmclk_innerbclk_mstlrck_mstbclklrckmclkmclk_extbclk_extlrck_ext¸cd¨­rxØ!4·	Ëdisabled¿defaultÍ$%
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