When resuming from suspend the sdhci-esdhc-imx driver causes a kernel panic if no card is inserted into card reader. Works fine when card is inserted. The problem is resolved when pm_runtime_set_active(&pdev->dev); is removed from sdhci_esdhc_imx_probe(struct platform_device *pdev). Should this fuction be called here or is it handled via mmc core? Attaching kernel log. [ 93.177424] PM: Syncing filesystems ... done. [ 93.304719] Freezing user space processes ... (elapsed 0.001 seconds) done. [ 93.313460] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done. [ 93.327760] PM: suspend of devices complete after 4.607 msecs [ 93.333751] PM: suspend devices took 0.010 seconds [ 93.339878] PM: late suspend of devices complete after 1.099 msecs [ 93.347499] PM: noirq suspend of devices complete after 1.198 msecs [ 93.354814] PM: noirq resume of devices complete after 0.780 msecs [ 93.362390] PM: early resume of devices complete after 0.761 msecs [ 93.369431] Unhandled fault: external abort on non-linefetch (0x1008) at 0x9086a02c [ 93.377391] Internal error: : 1008 [#1] ARM [ 93.381738] Modules linked in: [ 93.384953] CPU: 0 PID: 384 Comm: sh Not tainted 3.18.0-rc5-104485-g4d2a9b2-dirty #30 [ 93.393067] task: 8e046400 ti: 8ca26000 task.ti: 8ca26000 [ 93.398689] PC is at esdhc_writeb_le+0x58/0x150 [ 93.403400] LR is at esdhc_writeb_le+0x58/0x150 [ 93.408102] pc : [<803f4d48>] lr : [<803f4d48>] psr: a00f0013 [ 93.408102] sp : 8ca27cc0 ip : 8ca27cc0 fp : 8ca27cec [ 93.419974] r10: 00000018 r9 : 8079a044 r8 : 8ea1be10 [ 93.425387] r7 : 9086a02c r6 : 00000001 r5 : 8ea35ac0 r4 : 0000002f [ 93.432147] r3 : 90808730 r2 : 90808000 r1 : 00000000 r0 : 8ea35ac0 [ 93.438910] Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user [ 93.446296] Control: 10c5387d Table: 8ca28059 DAC: 00000015 [ 93.452246] Process sh (pid: 384, stack limit = 0x8ca26238) [ 93.458022] Stack: (0x8ca27cc0 to 0x8ca28000) [ 93.462551] 7cc0: 803f4cf0 8ea35ac0 8ea35ac0 00000001 802dac54 8e8b7410 807a237c 00000010 [ 93.471024] 7ce0: 8ca27d0c 8ca27cf0 803f4448 803f4cfc 8ea35ac0 00000001 8e8b7444 802dac54 [ 93.488700] 7d00: 8ca27d24 8ca27d10 803f54a0 803f433c 8ea35ac0 00000001 8ca27d3c 8ca27d28 [ 93.506426] 7d20: 803ef480 803f5498 8ea35ac0 00000000 8ca27d5c 8ca27d40 803f0b8c 803ef434 [ 93.524440] 7d40: 8ea35800 8ea35ac0 00000000 8e8b7444 8ca27d7c 8ca27d60 803f1a60 803f0b78 [ 93.542705] 7d60: 8ea58400 8ea35ac0 00000000 00000000 8ca27d8c 8ca27d80 803f446c 803f1994 [ 93.561399] 7d80: 8ca27d9c 8ca27d90 802dac88 803f4464 8ca27dd4 8ca27da0 802e1dd0 802dac60 [ 93.580206] 7da0: 800403a8 800402cc 00000000 00000000 8ca27dd4 8e8b7410 00000001 8e8b7444 [ 93.599344] 7dc0: 00000010 00000000 8ca27dfc 8ca27dd8 802e1ebc 802e1da8 000000cc 8e8b7468 [ 93.618555] 7de0: 8e8b7410 807b4d28 807b4d4c 8082e2a8 8ca27e44 8ca27e00 802e31e0 802e1e14 [ 93.638150] 7e00: 8ca27e5c 8ca27e10 bcd565db 00000015 bcd565db 00000015 bc66d969 00000010 [ 93.658112] 7e20: 807dcab0 00000003 8079abd6 00000000 8cb0380c 00000000 8ca27e5c 8ca27e48 [ 93.678426] 7e40: 802e34b4 802e30fc 807dcad0 00000000 8ca27e9c 8ca27e60 80043bd8 802e34ac [ 93.699024] 7e60: 8ca27e8c 8ca27e70 8058ca40 80045f28 806bbfc0 8ca27e94 00000000 00000003 [ 93.719764] 7e80: 807dcabc 00000003 8cb031c0 00000004 8ca27ebc 8ca27ea0 80043fec 8004397c [ 93.740736] 7ea0: 0000006d 00000003 806ba6d4 807dcac0 8ca27ee4 8ca27ec0 800429f0 80043d88 [ 93.761722] 7ec0: 8e83fa50 8cb031c0 8ca27f78 8cb031c0 8cb03800 00000004 8ca27ef4 8ca27ee8 [ 93.782715] 7ee0: 80269b84 80042988 8ca27f0c 8ca27ef8 8010e1cc 80269b74 00000000 00000000 [ 93.803707] 7f00: 8ca27f44 8ca27f10 8010d848 8010e18c 00000000 00000000 8ca27f44 8ca1f900 [ 93.824698] 7f20: 00000004 014f0408 8ca27f78 00000004 8ca26000 014f0408 8ca27f74 8ca27f48 [ 93.845683] 7f40: 800b4dd4 8010d78c 800cca10 800cc990 00000000 00000000 8ca1f900 8ca1f900 [ 93.866671] 7f60: 00000004 014f0408 8ca27fa4 8ca27f78 800b50fc 800b4d38 00000000 00000000 [ 93.887660] 7f80: 00000004 014f0408 76f9ab58 00000004 8000e9e4 00000000 00000000 8ca27fa8 [ 93.908647] 7fa0: 8000e840 800b50c4 00000004 014f0408 00000001 014f0408 00000004 00000000 [ 93.929638] 7fc0: 00000004 014f0408 76f9ab58 00000004 00000004 014f0408 00000004 00000000 [ 93.950622] 7fe0: 00000000 7eca0944 76ed26bc 76f2707c 60010010 00000001 00000000 00000000 [ 93.971591] Backtrace: [ 93.980302] [<803f4cf0>] (esdhc_writeb_le) from [<803f4448>] (sdhci_reset+0x118/0x128) [ 94.000698] r10:00000010 r9:807a237c r8:8e8b7410 r7:802dac54 r6:00000001 r5:8ea35ac0 [ 94.021142] r4:8ea35ac0 r3:803f4cf0 [ 94.030915] [<803f4330>] (sdhci_reset) from [<803f54a0>] (esdhc_reset+0x14/0xac) [ 94.050517] r7:802dac54 r6:8e8b7444 r5:00000001 r4:8ea35ac0 [ 94.062434] [<803f548c>] (esdhc_reset) from [<803ef480>] (sdhci_do_reset+0x58/0x9c) [ 94.082174] r5:00000001 r4:8ea35ac0 [ 94.091764] [<803ef428>] (sdhci_do_reset) from [<803f0b8c>] (sdhci_init+0x20/0xe0) [ 94.111152] r5:00000000 r4:8ea35ac0 [ 94.120613] [<803f0b6c>] (sdhci_init) from [<803f1a60>] (sdhci_resume_host+0xd8/0x190) [ 94.140105] r6:8e8b7444 r5:00000000 r4:8ea35ac0 r3:8ea35800 [ 94.151695] [<803f1988>] (sdhci_resume_host) from [<803f446c>] (sdhci_pltfm_resume+0x14/0x18) [ 94.171684] r5:00000000 r4:00000000 [ 94.180953] [<803f4458>] (sdhci_pltfm_resume) from [<802dac88>] (platform_pm_resume+0x34/0x54) [ 94.200817] [<802dac54>] (platform_pm_resume) from [<802e1dd0>] (dpm_run_callback.isra.9+0x34/0x6c) [ 94.221127] [<802e1d9c>] (dpm_run_callback.isra.9) from [<802e1ebc>] (device_resume+0xb4/0x188) [ 94.241065] r8:00000000 r7:00000010 r6:8e8b7444 r5:00000001 r4:8e8b7410 [ 94.253610] [<802e1e08>] (device_resume) from [<802e31e0>] (dpm_resume+0xf0/0x214) [ 94.272460] r8:8082e2a8 r7:807b4d4c r6:807b4d28 r5:8e8b7410 r4:8e8b7468 r3:000000cc [ 94.291831] [<802e30f0>] (dpm_resume) from [<802e34b4>] (dpm_resume_end+0x14/0x20) [ 94.310866] r10:00000000 r9:8cb0380c r8:00000000 r7:8079abd6 r6:00000003 r5:807dcab0 [ 94.330555] r4:00000010 [ 94.338836] [<802e34a0>] (dpm_resume_end) from [<80043bd8>] (suspend_devices_and_enter+0x268/0x40c) [ 94.359437] r4:00000000 r3:807dcad0 [ 94.368757] [<80043970>] (suspend_devices_and_enter) from [<80043fec>] (pm_suspend+0x270/0x2a4) [ 94.389001] r10:00000004 r8:8cb031c0 r7:00000003 r6:807dcabc r5:00000003 r4:00000000 [ 94.408641] [<80043d7c>] (pm_suspend) from [<800429f0>] (state_store+0x74/0xc4) [ 94.427733] r6:807dcac0 r5:806ba6d4 r4:00000003 r3:0000006d [ 94.439487] [<8004297c>] (state_store) from [<80269b84>] (kobj_attr_store+0x1c/0x28) [ 94.459020] r10:00000004 r8:8cb03800 r7:8cb031c0 r6:8ca27f78 r5:8cb031c0 r4:8e83fa50 [ 94.479044] [<80269b68>] (kobj_attr_store) from [<8010e1cc>] (sysfs_kf_write+0x4c/0x50) [ 94.499111] [<8010e180>] (sysfs_kf_write) from [<8010d848>] (kernfs_fop_write+0xc8/0x184) [ 94.519335] r5:00000000 r4:00000000 [ 94.528910] [<8010d780>] (kernfs_fop_write) from [<800b4dd4>] (vfs_write+0xa8/0x1b0) [ 94.548477] r10:014f0408 r9:8ca26000 r8:00000004 r7:8ca27f78 r6:014f0408 r5:00000004 [ 94.568290] r4:8ca1f900 [ 94.576618] [<800b4d2c>] (vfs_write) from [<800b50fc>] (SyS_write+0x44/0x90) [ 94.589539] r10:014f0408 r8:00000004 r7:8ca1f900 r6:8ca1f900 r5:00000000 r4:00000000 [ 94.609023] [<800b50b8>] (SyS_write) from [<8000e840>] (ret_fast_syscall+0x0/0x30) [ 94.628209] r10:00000000 r8:8000e9e4 r7:00000004 r6:76f9ab58 r5:014f0408 r4:00000004 [ 94.648005] Code: e5993014 e3530000 0a000000 e12fff33 (e5973000) [ 94.660150] ---[ end trace 7d827e90462ff80c ]--- -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More 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