On Tue, Aug 9, 2016 at 3:20 PM, Jon Hunter <jonath...@nvidia.com> wrote:
> If that works, then does the following also work (without the above) ... > > diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c > index b4c1bc7c9ca2..e111b72e3162 100644 > --- a/kernel/irq/chip.c > +++ b/kernel/irq/chip.c > @@ -824,6 +824,7 @@ __irq_do_set_handler(struct irq_desc *desc, > irq_flow_handler_t handle, > irq_settings_set_norequest(desc); > irq_settings_set_nothread(desc); > desc->action = &chained_action; > + __irq_set_trigger(desc, > irqd_get_trigger_type(&desc->irq_data)); > irq_startup(desc, true); > } > } > > It looks like there is a path for parent interrupts where the type > is not getting set. If the above works then we can discuss with Thomas > and Marc on the correct fix. I tried this on my problematic platform and then this happens: preparing networking... [ 2.628246] ------------[ cut here ]------------ [ 2.628303] WARNING: CPU: 0 PID: 92 at ../kernel/irq/chip.c:26 bad_chained_irq+0x44/0x4c [ 2.631939] Chained irq 109 should not call an action [ 2.640008] Modules linked in: [ 2.647909] CPU: 0 PID: 92 Comm: ip Not tainted 4.8.0-rc1-00011-ga21e27b4cb66 #194 [ 2.647996] Hardware name: Generic DT based system [ 2.655486] [<c030f8c8>] (unwind_backtrace) from [<c030c714>] (show_stack+0x10/0x14) [ 2.660254] [<c030c714>] (show_stack) from [<c05df420>] (dump_stack+0x78/0x8c) [ 2.668147] [<c05df420>] (dump_stack) from [<c031cef4>] (__warn+0xec/0x104) [ 2.675173] [<c031cef4>] (__warn) from [<c031cf44>] (warn_slowpath_fmt+0x38/0x48) [ 2.682033] [<c031cf44>] (warn_slowpath_fmt) from [<c0369160>] (bad_chained_irq+0x44/0x4c) [ 2.689687] [<c0369160>] (bad_chained_irq) from [<c0365e28>] (__handle_irq_event_percpu+0x5c/0x290) [ 2.697836] [<c0365e28>] (__handle_irq_event_percpu) from [<c0366078>] (handle_irq_event_percpu+0x1c/0x58) [ 2.706778] [<c0366078>] (handle_irq_event_percpu) from [<c03660ec>] (handle_irq_event+0x38/0x5c) [ 2.716498] [<c03660ec>] (handle_irq_event) from [<c03693f0>] (handle_level_irq+0xc4/0x150) [ 2.725438] [<c03693f0>] (handle_level_irq) from [<c036542c>] (generic_handle_irq+0x24/0x34) [ 2.733602] [<c036542c>] (generic_handle_irq) from [<c06127d4>] (msm_gpio_irq_handler+0xc8/0x150) [ 2.742280] [<c06127d4>] (msm_gpio_irq_handler) from [<c036542c>] (generic_handle_irq+0x24/0x34) [ 2.751048] [<c036542c>] (generic_handle_irq) from [<c0365720>] (__handle_domain_irq+0x7c/0xec) [ 2.759901] [<c0365720>] (__handle_domain_irq) from [<c0301464>] (gic_handle_irq+0x48/0x8c) [ 2.768323] [<c0301464>] (gic_handle_irq) from [<c08b8e4c>] (__irq_svc+0x6c/0xa8) [ 2.776644] Exception stack(0xdeca1d48 to 0xdeca1d90) [ 2.784284] 1d40: deca1dc0 00000000 00000000 deca0018 ffff8bd6 deca1dc0 [ 2.789324] 1d60: 00000000 c0378ad0 60070013 00000000 00000000 001f3df8 c108fa04 deca1d98 [ 2.797481] 1d80: c08b77fc c0377930 60070013 ffffffff [ 2.805651] [<c08b8e4c>] (__irq_svc) from [<c0377930>] (init_timer_key+0x28/0x104) [ 2.810679] [<c0377930>] (init_timer_key) from [<c08b77fc>] (schedule_timeout+0x48/0x410) [ 2.818145] [<c08b77fc>] (schedule_timeout) from [<c0378ad0>] (msleep+0x2c/0x38) [ 2.826399] [<c0378ad0>] (msleep) from [<c06c2980>] (smsc911x_open+0x268/0x50c) [ 2.833859] [<c06c2980>] (smsc911x_open) from [<c07c1994>] (__dev_open+0xa8/0x10c) [ 2.840887] [<c07c1994>] (__dev_open) from [<c07c1c1c>] (__dev_change_flags+0x94/0x144) [ 2.848525] [<c07c1c1c>] (__dev_change_flags) from [<c07c1ce4>] (dev_change_flags+0x18/0x48) [ 2.856428] [<c07c1ce4>] (dev_change_flags) from [<c0823048>] (devinet_ioctl+0x6b0/0x768) [ 2.865120] [<c0823048>] (devinet_ioctl) from [<c07a4ac4>] (sock_ioctl+0x1f4/0x2c8) [ 2.873186] [<c07a4ac4>] (sock_ioctl) from [<c0432678>] (do_vfs_ioctl+0x9c/0x910) [ 2.880645] [<c0432678>] (do_vfs_ioctl) from [<c0432f20>] (SyS_ioctl+0x34/0x5c) [ 2.888290] [<c0432f20>] (SyS_ioctl) from [<c0308480>] (ret_fast_syscall+0x0/0x3c) [ 2.895395] ---[ end trace a53e1e63b7bdfc4a ]--- [ 2.903917] random: fast init done [ 3.036378] random: crng init done [ 3.883906] irq 109: nobody cared (try booting with the "irqpoll" option) [ 3.883940] CPU: 0 PID: 92 Comm: ip Tainted: G W 4.8.0-rc1-00011-ga21e27b4cb66 #194 [ 3.889673] Hardware name: Generic DT based system [ 3.898538] [<c030f8c8>] (unwind_backtrace) from [<c030c714>] (show_stack+0x10/0x14) [ 3.903137] [<c030c714>] (show_stack) from [<c05df420>] (dump_stack+0x78/0x8c) [ 3.911034] [<c05df420>] (dump_stack) from [<c0368804>] (__report_bad_irq+0x28/0xcc) [ 3.918065] [<c0368804>] (__report_bad_irq) from [<c0368c18>] (note_interrupt+0x298/0x2e8) [ 3.925971] [<c0368c18>] (note_interrupt) from [<c03660a8>] (handle_irq_event_percpu+0x4c/0x58) [ 3.934040] [<c03660a8>] (handle_irq_event_percpu) from [<c03660ec>] (handle_irq_event+0x38/0x5c) [ 3.942634] [<c03660ec>] (handle_irq_event) from [<c03693f0>] (handle_level_irq+0xc4/0x150) [ 3.951660] [<c03693f0>] (handle_level_irq) from [<c036542c>] (generic_handle_irq+0x24/0x34) [ 3.959821] [<c036542c>] (generic_handle_irq) from [<c06127d4>] (msm_gpio_irq_handler+0xc8/0x150) [ 3.968502] [<c06127d4>] (msm_gpio_irq_handler) from [<c036542c>] (generic_handle_irq+0x24/0x34) [ 3.977269] [<c036542c>] (generic_handle_irq) from [<c0365720>] (__handle_domain_irq+0x7c/0xec) [ 3.986122] [<c0365720>] (__handle_domain_irq) from [<c0301464>] (gic_handle_irq+0x48/0x8c) [ 3.994541] [<c0301464>] (gic_handle_irq) from [<c08b8e4c>] (__irq_svc+0x6c/0xa8) [ 4.002865] Exception stack(0xdeca1c60 to 0xdeca1ca8) [ 4.010507] 1c60: 00000000 c0abce68 c109f9c0 00000000 c109f9c0 00000000 deca0000 00000000 [ 4.015546] 1c80: 00000282 deca1d48 c0210800 001f3df8 e080400c deca1cb0 c0322330 c0322340 [ 4.023701] 1ca0: 20070113 ffffffff [ 4.031868] [<c08b8e4c>] (__irq_svc) from [<c0322340>] (__do_softirq+0x9c/0x388) [ 4.035166] [<c0322340>] (__do_softirq) from [<c03228f0>] (irq_exit+0xc0/0xfc) [ 4.042805] [<c03228f0>] (irq_exit) from [<c0365724>] (__handle_domain_irq+0x80/0xec) [ 4.049835] [<c0365724>] (__handle_domain_irq) from [<c0301464>] (gic_handle_irq+0x48/0x8c) [ 4.057735] [<c0301464>] (gic_handle_irq) from [<c08b8e4c>] (__irq_svc+0x6c/0xa8) [ 4.065887] Exception stack(0xdeca1d48 to 0xdeca1d90) [ 4.073528] 1d40: deca1dc0 00000000 00000000 deca0018 ffff8bd6 deca1dc0 [ 4.078566] 1d60: 00000000 c0378ad0 60070013 00000000 00000000 001f3df8 c108fa04 deca1d98 [ 4.086723] 1d80: c08b77fc c0377930 60070013 ffffffff [ 4.094889] [<c08b8e4c>] (__irq_svc) from [<c0377930>] (init_timer_key+0x28/0x104) [ 4.099921] [<c0377930>] (init_timer_key) from [<c08b77fc>] (schedule_timeout+0x48/0x410) [ 4.107389] [<c08b77fc>] (schedule_timeout) from [<c0378ad0>] (msleep+0x2c/0x38) [ 4.115640] [<c0378ad0>] (msleep) from [<c06c2980>] (smsc911x_open+0x268/0x50c) [ 4.123100] [<c06c2980>] (smsc911x_open) from [<c07c1994>] (__dev_open+0xa8/0x10c) [ 4.130128] [<c07c1994>] (__dev_open) from [<c07c1c1c>] (__dev_change_flags+0x94/0x144) [ 4.137769] [<c07c1c1c>] (__dev_change_flags) from [<c07c1ce4>] (dev_change_flags+0x18/0x48) [ 4.145670] [<c07c1ce4>] (dev_change_flags) from [<c0823048>] (devinet_ioctl+0x6b0/0x768) [ 4.154357] [<c0823048>] (devinet_ioctl) from [<c07a4ac4>] (sock_ioctl+0x1f4/0x2c8) [ 4.162425] [<c07a4ac4>] (sock_ioctl) from [<c0432678>] (do_vfs_ioctl+0x9c/0x910) [ 4.169887] [<c0432678>] (do_vfs_ioctl) from [<c0432f20>] (SyS_ioctl+0x34/0x5c) [ 4.177529] [<c0432f20>] (SyS_ioctl) from [<c0308480>] (ret_fast_syscall+0x0/0x3c) [ 4.184635] handlers: [ 4.192273] [<c036911c>] bad_chained_irq [ 4.198255] Disabling IRQ #109 (...) [ 34.170316] smsc911x 1b800000.ethernet-ebi2 eth0: ISR failed signaling test (IRQ 208) Yours, Linus Walleij