Messages in this thread | | | From | Sudeep Holla <> | Subject | Re: [PATCH] firmware: arm_scmi: Fix SCMI Generic Power Domain probing | Date | Fri, 3 Jul 2020 15:49:46 +0100 |
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On Fri, 19 Jun 2020 23:03:30 +0100, Cristian Marussi wrote: > When, at probe time, an SCMI communication failure inhibits the capacity to > query power domains states, such domains should be skipped. > > Registering partially initialized SCMI Power Domains with GenPD causes a > Kernel panic. > > [ 292.593774] arm-scmi firmware:scmi: timed out in resp(caller: scmi_power_state_get+0xa4/0xd0) > [ 292.602369] scmi-power-domain scmi_dev.2: failed to get state for domain 9 > [ 292.609366] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 > [ 292.618190] Mem abort info: > [ 292.620982] ESR = 0x96000006 > [ 292.624065] EC = 0x25: DABT (current EL), IL = 32 bits > [ 292.629403] SET = 0, FnV = 0 > [ 292.632474] EA = 0, S1PTW = 0 > [ 292.635641] Data abort info: > [ 292.638542] ISV = 0, ISS = 0x00000006 > [ 292.642396] CM = 0, WnR = 0 > [ 292.645364] user pgtable: 4k pages, 48-bit VAs, pgdp=00000009f3691000 > [ 292.651838] [0000000000000000] pgd=00000009f1ca0003, p4d=00000009f1ca0003, pud=00000009f35ea003, pmd=0000000000000000 > [ 292.662504] Internal error: Oops: 96000006 [#1] PREEMPT SMP > [ 292.672272] CPU: 2 PID: 381 Comm: bash Not tainted 5.8.0-rc1-00011-gebd118c2cca8 #2 > [ 292.679938] Hardware name: ARM LTD ARM Juno Development Platform/ARM Juno Development Platform, BIOS EDK II Jan 3 2020 > 292.662504] Internal error: Oops: 96000006 [#1] PREEMPT SMP > [ 292.702221] pstate: 80000005 (Nzcv daif -PAN -UAO BTYPE=--) > [ 292.707803] pc : of_genpd_add_provider_onecell+0x98/0x1f8 > [ 292.713207] lr : of_genpd_add_provider_onecell+0x48/0x1f8 > [ 292.718609] sp : ffff80001325bb50 > [ 292.721922] x29: ffff80001325bb50 x28: ffff000974b28ec0 > [ 292.727240] x27: ffff000971c11380 x26: ffff80001235b200 > [ 292.732558] x25: ffff00097eff82c0 x24: 0000000000000001 > [ 292.737874] x23: 00000000ffffffea x22: ffff00097eff82a8 > [ 292.743191] x21: ffff80001235b1e0 x20: 0000000000000000 > [ 292.748507] x19: ffff000974b2c080 x18: 0000000000000010 > [ 292.753823] x17: 0000000000000000 x16: 0000000000000000 > [ 292.759140] x15: ffffffffffffffff x14: ffff800012139948 > [ 292.764456] x13: ffff80009325b817 x12: ffff80001325b81f > [ 292.769772] x11: ffff80001215a000 x10: 0000000000000a10 > [ 292.775089] x9 : ffff800010970e08 x8 : ffff000974e84370 > [ 292.780405] x7 : 00000000ffffffff x6 : ffff00097ef5c1f0 > [ 292.785721] x5 : ffff00097ef5c1f0 x4 : 0000000000000000 > [ 292.791038] x3 : ffff80001235b1e0 x2 : fffffffffffffc28 > [ 292.796354] x1 : 000000000000000a x0 : ffff000971c11680 > [ 292.801671] Call trace: > [ 292.804117] of_genpd_add_provider_onecell+0x98/0x1f8 > [ 292.809173] scmi_pm_domain_probe+0x174/0x1e8 > [ 292.813533] scmi_dev_probe+0x90/0xe0 > [ 292.817198] really_probe+0xe4/0x448 > [ 292.820774] driver_probe_device+0xfc/0x168 > [ 292.824961] device_driver_attach+0x7c/0x88 > [ 292.829146] bind_store+0xe8/0x128 > [ 292.832548] drv_attr_store+0x2c/0x40 > [ 292.836214] sysfs_kf_write+0x4c/0x60 > [ 292.839876] kernfs_fop_write+0x114/0x230 > [ 292.843889] __vfs_write+0x24/0x50 > [ 292.847291] vfs_write+0xbc/0x1e0 > [ 292.850605] ksys_write+0x70/0xf8 > [ 292.853919] __arm64_sys_write+0x24/0x30 > [ 292.857844] el0_svc_common.constprop.3+0x94/0x160 > [ 292.862638] do_el0_svc+0x2c/0x98 > [ 292.865954] el0_sync_handler+0x148/0x1a8 > [ 292.869964] el0_sync+0x158/0x180 > [ 292.873281] Code: eb1a005f d10f6042 540000c1 1400004e (f941ec42) > [ 292.879388] ---[ end trace 0077e182f3135393 ]--- > [ 292.884007] Kernel panic - not syncing: Fatal exception > [ 292.889239] SMP: stopping secondary CPUs > [ 292.893347] Kernel Offset: 0x140000 from 0xffff800010000000 > [ 292.898923] PHYS_OFFSET: 0x80000000 > [ 292.902411] CPU features: 0x240022,25806087 > [ 292.906594] Memory Limit: none > [ 292.909655] ---[ end Kernel panic - not syncing: Fatal exception ]--- > > [...]
Applied to sudeep.holla/linux (for-next/scmi), thanks!
[1/1] firmware: arm_scmi: Fix SCMI genpd domain probing https://git.kernel.org/sudeep.holla/c/e0f1a30cf1
-- Regards, Sudeep
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