Hey Marek, Marek Szyprowski wrote: > Dear Tobias > > > On 2016-07-18 13:00, Tobias Jakobi wrote: >> Marek Szyprowski wrote: >>> On 2016-07-15 15:21, Tobias Jakobi wrote: >>>> Tobias Jakobi wrote: >>>>> Hello Marek, >>>>> >>>>> I've tested the patchset on 4.7-rc7 and noticed that it breaks >>>>> reboot on >>>>> my ODROID-X2. >>>>> >>>>> Going to check where exactly things break. >>>> Sadly it's the last patch where everything comes together: >>>> "iommu/exynos: Add proper runtime pm support" >>>> >>>> I still have to check if forcing runpm status to 'on' makes a >>>> difference. I suspect that the aggressive clock gating might be the >>>> reason? >>> Thanks for testing. I will check this issue. Could you send me your >>> .config? >> This is the config I'm currently using: >> https://github.com/tobiasjakobi/odroid-environment/blob/master/sourcecode/system/vanilla-4.7-debug.conf >> >> >> Do you think checking this with no_console_suspend makes sense? > > no_console_suspend switch won't provide more information, but I managed > to reproduce your issue. I'm really confused how enabling runtime pm can > cause problems with usb/smsc95xx ethernet driver (that is the reason for > failed reboot). Maybe it is somehow related to the global relations > between devices and drivers and the fact that creating the runtime pm > links change the order of operations. I will check this again when > Rafael send updated patches. Here is the log I got (after waiting some > time): thanks for looking into this! I'll try to reproduce this on my board. I have to admit that I didn't wait too long for the hung task message to appear. I wonder if this has something to do with regulator code cutting some supplies too early. Is this on a X2 or a U2/U3? I'm not sure if we currently model the regulator setup correctly here (IIRC then buck8 is supplying the LAN/USB block on U2/U3). - Tobias > > # reboot > > Broadcast message from root@target (ttySAC1) (Mon Jul 18 13:33:38 2016): > > The system is going down for reboot NOW! > INIT: Switching to runlevel: 6 > INIT: Sending processes the TERM signal > [info] Using makefile-style concurrent boot in runlevel 6. > [ ok ] Stopping cgroup management proxy daemon: cgproxy[....] Stopping > internet superserver: inetd. > [....] Stopping cgroup management daemon: cgmanagermax77686-rtc > max77686-rtc: RTC alarm IRQ: 119 > [ ok ] Shutting down ALSA...done. > random: nonblocking pool is initialized > [info] Saving the system clock. > [info] Hardware Clock updated to Mon Jul 18 13:33:40 UTC 2016. > [ ok ] Asking all remaining processes to terminate...done. > [ ok ] All processes ended within 1 seconds...done. > [ ok ] Stopping rpcbind daemon.... > [ ok ] Deconfiguring network interfaces...done. > [ ok ] Unmounting temporary filesystems...done. > [ ok ] Deactivating swap...done. > EXT4-fs (mmcblk1p2): re-mounted. Opts: (null) > [info] Will now restart. > smsc95xx 1-2:1.0 eth0: Failed to read reg index 0x00000114: -110 > smsc95xx 1-2:1.0 eth0: Error reading MII_ACCESS > smsc95xx 1-2:1.0 eth0: MII is busy in smsc95xx_mdio_read > smsc95xx 1-2:1.0 eth0: Failed to read MII_BMSR > INFO: task kworker/0:1:410 blocked for more than 120 seconds. > Not tainted 4.7.0-rc7-debug+ #155 > "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. > kworker/0:1 D c06850a8 0 410 2 0x00000000 > Workqueue: events_freezable mmc_rescan > Backtrace: > [<c0684e90>] (__schedule) from [<c068560c>] (schedule+0x44/0xb0) > r10:00000000 r9:eebe1d88 r8:c0686234 r7:00000000 r6:00000002 r5:7fffffff > r4:7fffffff > [<c06855c8>] (schedule) from [<c068a398>] (schedule_timeout+0x154/0x1b0) > [<c068a244>] (schedule_timeout) from [<c0686250>] > (wait_for_common+0xe0/0x174) > r8:c0686234 r7:00000000 r6:00000002 r5:eebe1d8c r4:7fffffff > [<c0686170>] (wait_for_common) from [<c0686430>] > (wait_for_completion+0x18/0x1c) > r10:00000001 r9:00000000 r8:00000000 r7:eebe1d88 r6:eebe1d78 r5:ee260000 > r4:eebe1de4 > [<c0686418>] (wait_for_completion) from [<c04e72c8>] > (mmc_wait_for_req+0xc8/0x15c) > [<c04e7200>] (mmc_wait_for_req) from [<c04e73c8>] > (mmc_wait_for_cmd+0x6c/0xa4) > r8:eef73d00 r7:00000003 r6:ee260000 r5:c0a02448 r4:eebe1de4 r3:00000000 > [<c04e735c>] (mmc_wait_for_cmd) from [<c04edbf4>] > (mmc_send_status+0x8c/0xb0) > r7:eebe1eb0 r6:ee260000 r5:ee260000 r4:00000000 > [<c04edb68>] (mmc_send_status) from [<c04eaf80>] (mmc_alive+0x18/0x1c) > r4:ee260000 > [<c04eaf68>] (mmc_alive) from [<c04e93d0>] > (_mmc_detect_card_removed+0x40/0x90) > [<c04e9390>] (_mmc_detect_card_removed) from [<c04eba80>] > (mmc_detect+0x2c/0x78) > r5:ee2602bc r4:ee260000 > [<c04eba54>] (mmc_detect) from [<c04e96ac>] (mmc_rescan+0x1b0/0x324) > r5:ee2602bc r4:ee260368 > [<c04e94fc>] (mmc_rescan) from [<c013a818>] (process_one_work+0x194/0x414) > r8:eef73d00 r7:eebe1eb0 r6:eef70280 r5:ee260368 r4:eea24080 r3:c04e94fc > [<c013a684>] (process_one_work) from [<c013ab0c>] > (worker_thread+0x34/0x4d4) > r10:eef70280 r9:c0a02100 r8:00000008 r7:eef70280 r6:eea24098 r5:eef702b4 > r4:eea24080 > [<c013aad8>] (worker_thread) from [<c0141e18>] (kthread+0xf8/0x11c) > r10:00000000 r9:00000000 r8:00000000 r7:c013aad8 r6:eea24080 r5:00000000 > r4:eea29d00 > [<c0141d20>] (kthread) from [<c0107ff0>] (ret_from_fork+0x14/0x24) > r7:00000000 r6:00000000 r5:c0141d20 r4:eea29d00 > 2 locks held by kworker/0:1/410: > #0: ("events_freezable"){.+.+.+}, at: [<c013a7ac>] > process_one_work+0x128/0x414 > #1: ((&(&host->detect)->work)){+.+.+.}, at: [<c013a7ac>] > process_one_work+0x128/0x414 > > > Best regards -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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