On 4/14/2021 4:50 PM, Greg Gallagher via Xenomai wrote:
On Wed, Apr 14, 2021 at 4:52 PM Thomas Petazzoni <
thomas.petazz...@bootlin.com> wrote:
On Wed, 14 Apr 2021 14:41:29 -0400
Greg Gallagher <g...@embeddedgreg.com> wrote:
Ipipe 5.4 and xenomai 3.1 are compatible, this is my mistake, I’ll fix up
and generate a new patch once the latency fix is done.
FWIW, building straight from the ipipe-arm repo on the ipipe/5.4.y branch
has been working for me.
I'm afraid the HEAD of ipipe/5.4.y as of commit
ffaf274ca4cc117c2dc3f9b2ee8ea6218b50995a doesn't build for me. I'm on
this commit + I have prepared the kernel using Xenomai 3.1
./scripts/prepare-kernel.sh --linux=/path/to/kernel + kernel configured
with sama5_defconfig.
And same build failure:
In file included from kernel/cpu.c:23:0:
./include/linux/stop_machine.h: In function ‘stop_machine_cpuslocked’:
./include/linux/stop_machine.h:150:2: error: implicit declaration of
function ‘hard_irq_enable’; did you mean ‘hard_irq_disable’?
[-Werror=implicit-function-declaration]
hard_irq_enable();
^~~~~~~~~~~~~~~
hard_irq_disable
Best regards,
Thomas
--
Thomas Petazzoni, co-owner and CEO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
I'll dig into this tonight, I usually test with multi_v7_defconfig and it
seems to build fine with ipipe 5.4 and Xenomai 3.1. I'll test with
sama5_defconfig.
Thanks
Greg
Greg,
We are also having issues with ARM32 (armv7-a) with this build genre
(5.4.107 + Xenomai 3.1 stable) and the e1000e driver. The build
completes without compile/link errors, but when booting we're getting a
kernel stack dump (upon an ifup of the e1000e interface) that's
indicating a problem with enabling interrupts at a point where
interrupts are not supposed to be enabled. We're not seeing a lot of
changes to the e1000e tree since 4.14.85 (last release we know of where
the driver was working properly), so we suspected it might be something
in Linux or ipipe. We know that e1000e seems to work properly with
kernel 5.4.107 (non-Xenomai/ipipe build).
I wonder, do you have access to an ARMV7 system that has an e1000e NIC?
If so, I wonder could you add an e1000e driver to your modules build and
see if you get the same stack trace we're getting? Below is the
original post I did on this (on 03/15/2021). We suspect that e1000e
doesn't fly on any armv7 5.4.107+Xenomai 3.1/stable build. Naturally
we'll be happy to test any patches related to these issues.
Best regards,
Steve
------------------------------------------------------------------------
Greetings Xenomai list,
We are seeing the following stack trace when we 'ifup' the e1000e
adapter. 4.19 exhibits same failure, 4.14.96 also fails but with a
different stack trace. Last working version is 4.14.85.
Thanks in advance for any assist,
Steve
------------------------------------------------------------------------
[ 47.635779] ------------[ cut here ]------------
[ 47.637083] ip (658) used greatest stack depth: 3960 bytes left
[ 47.640416] WARNING: CPU: 0 PID: 0 at kernel/ipipe/core.c:1968
__ipipe_spin_unlock_debug+0x50/0x5c
[ 47.655297] Modules linked in: xeno_gpio_mxc e1000e
[ 47.660198] CPU: 0 PID: 0 Comm: swapper/0 Not tainted
5.4.93-00202-g1070d76ae3f5-dirty #7
[ 47.668386] Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree)
[ 47.674923] I-pipe domain: Linux
[ 47.678159] Backtrace:
[ 47.680620] [<80992f10>] (dump_backtrace) from [<8099328c>]
(show_stack+0x20/0x24)
[ 47.688199] r7:81238180 r6:00000080 r5:00000000 r4:811a66f0
[ 47.693867] [<8099326c>] (show_stack) from [<8099cac0>]
(dump_stack+0xf4/0x128)
[ 47.701184] [<8099c9cc>] (dump_stack) from [<8012ba1c>]
(__warn+0xd0/0x108)
[ 47.708154] r9:00000000 r8:00000009 r7:000007b0 r6:801e1448
r5:00000009 r4:80c02be0
[ 47.715905] [<8012b94c>] (__warn) from [<809942b8>]
(warn_slowpath_fmt+0x6c/0xc4)
[ 47.723396] r7:801e1448 r6:000007b0 r5:80c02be0 r4:00000000
[ 47.729065] [<80994250>] (warn_slowpath_fmt) from [<801e1448>]
(__ipipe_spin_unlock_debug+0x50/0x5c)
[ 47.738206] r8:ffffffff r7:00000000 r6:ffff9d6c r5:bf54b4c0 r4:bd354580
[ 47.744917] [<801e13f8>] (__ipipe_spin_unlock_debug) from
[<801a2d90>] (mod_timer+0x190/0x400)
[ 47.753537] [<801a2c00>] (mod_timer) from [<7f01a5b8>]
(e1000_msix_other+0xac/0xb8 [e1000e])
[ 47.761984] r10:80e748d4 r9:00000001 r8:81101d78 r7:00000137
r6:bd3549e4 r5:81000004
[ 47.769822] r4:bd354000
[ 47.772365] [<7f01a50c>] (e1000_msix_other [e1000e]) from
[<801859b8>] (__handle_irq_event_percpu+0x64/0x240)
[ 47.782289] r7:00000137 r6:00000000 r5:bd23e870 r4:bc09aa80
[ 47.787957] [<80185954>] (__handle_irq_event_percpu) from
[<80185bd0>] (handle_irq_event_percpu+0x3c/0x98)
[ 47.797618] r10:80e748d4 r9:00000001 r8:81106fe8 r7:c0faf65c
r6:bd23e870 r5:bd23e870
[ 47.805456] r4:bd23e800
[ 47.807999] [<80185b94>] (handle_irq_event_percpu) from [<80185c74>]
(handle_irq_event+0x48/0x6c)
[ 47.816878] r5:bd23e870 r4:bd23e800
[ 47.820463] [<80185c2c>] (handle_irq_event) from [<8018ba84>]
(handle_edge_irq+0xb4/0x1f8)
[ 47.828735] r7:c0faf65c r6:80e8a410 r5:bd23e870 r4:bd23e800
[ 47.834403] [<8018b9d0>] (handle_edge_irq) from [<801849d8>]
(generic_handle_irq+0x30/0x44)
[ 47.842762] r9:00000001 r8:00000830 r7:00000000 r6:00000000
r5:be412e58 r4:00000003
[ 47.850513] [<801849a8>] (generic_handle_irq) from [<8057dca8>]
(dw_handle_msi_irq+0x9c/0xf4)
[ 47.859046] [<8057dc0c>] (dw_handle_msi_irq) from [<8057dd34>]
(dw_chained_msi_isr+0x34/0x80)
[ 47.867579] r9:8116cad4 r8:8111e8a8 r7:0000001a r6:bee36414
r5:811119dc r4:bee36400
[ 47.875331] [<8057dd00>] (dw_chained_msi_isr) from [<801e2dd0>]
(__ipipe_dispatch_irq+0x154/0x228)
[ 47.884297] r7:0000001a r6:00000001 r5:00000019 r4:00000000
[ 47.889965] [<801e2c7c>] (__ipipe_dispatch_irq) from [<801028dc>]
(__ipipe_grab_irq+0x54/0xb4)
[ 47.898585] r9:8116cad4 r8:f4000100 r7:bf3b7ae0 r6:81101eb8
r5:bf3b5ae0 r4:00000019
[ 47.906337] [<80102888>] (__ipipe_grab_irq) from [<80102a8c>]
(gic_handle_irq+0x58/0xb0)
[ 47.914437] r7:811072f8 r6:000003ff r5:f400010c r4:81101eb8
[ 47.920105] [<80102a34>] (gic_handle_irq) from [<80101c64>]
(__irq_svc+0x84/0x90)
[ 47.927595] Exception stack(0x81101eb8 to 0x81101f00)
[ 47.932657] 1ea0: 80000000 00000000
[ 47.940842] 1ec0: bf3b5ae0 00000000 80e8fae0 00000000 81106b68
81106ba8 811abf50 80bfbb3c
[ 47.949027] 1ee0: 80e748d4 81101f1c 81101f08 81101f08 801e26f8
801e26fc 60070013 ffffffff
[ 47.957214] r9:81100000 r8:811abf50 r7:81101eec r6:ffffffff
r5:60070013 r4:801e26fc
[ 47.964966] [<801e269c>] (ipipe_unstall_root) from [<8010a2d8>]
(arch_cpu_idle+0x98/0xb0)
[ 47.973151] r5:00000000 r4:80e8fae0
[ 47.976735] [<8010a240>] (arch_cpu_idle) from [<809a4a20>]
(default_idle_call+0x44/0x50)
[ 47.984833] r5:00000000 r4:81100000
[ 47.988419] [<809a49dc>] (default_idle_call) from [<8016059c>]
(do_idle+0xd8/0x1e4)
[ 47.996083] [<801604c4>] (do_idle) from [<8016097c>]
(cpu_startup_entry+0x28/0x2c)
[ 48.003661] r9:00000001 r8:811b1000 r7:00000000 r6:81106b40
r5:811b1000 r4:000000ce
[ 48.011413] [<80160954>] (cpu_startup_entry) from [<8099cc6c>]
(rest_init+0x9c/0xbc)
[ 48.019165] [<8099cbd0>] (rest_init) from [<80e00b44>]
(arch_call_rest_init+0x18/0x1c)
[ 48.027089] r5:811b1000 r4:80e748d4
[ 48.030675] [<80e00b2c>] (arch_call_rest_init) from [<80e00fa0>]
(start_kernel+0x3e0/0x4a4)
[ 48.039035] [<80e00bc0>] (start_kernel) from [<00000000>] (0x0)
[ 48.044963] ---[ end trace cea0b6f9eb21f4eb ]---
[ 48.049596] ------------[ cut here ]------------
[ 48.054244] WARNING: CPU: 0 PID: 0 at kernel/irq/handle.c:152
__handle_irq_event_percpu+0x220/0x240
[ 48.063398] irq 311 handler e1000_msix_other+0x0/0xb8 [e1000e]
enabled interrupts
[ 48.070894] Modules linked in: xeno_gpio_mxc e1000e
[ 48.075806] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G W
5.4.93-00202-g1070d76ae3f5-dirty #7
[ 48.085385] Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree)
[ 48.091925] I-pipe domain: Linux
[ 48.095164] Backtrace:
[ 48.097644] [<80992f10>] (dump_backtrace) from [<8099328c>]
(show_stack+0x20/0x24)
[ 48.105232] r7:81238180 r6:00000000 r5:00000000 r4:811a66f0
[ 48.110915] [<8099326c>] (show_stack) from [<8099cac0>]
(dump_stack+0xf4/0x128)
[ 48.118251] [<8099c9cc>] (dump_stack) from [<8012ba1c>]
(__warn+0xd0/0x108)
[ 48.125229] r9:00000001 r8:00000009 r7:00000098 r6:80185b74
r5:00000009 r4:80bfd600
[ 48.132993] [<8012b94c>] (__warn) from [<809942e8>]
(warn_slowpath_fmt+0x9c/0xc4)
[ 48.140490] r7:80185b74 r6:00000098 r5:80bfd600 r4:80bfd5d8
[ 48.146176] [<80994250>] (warn_slowpath_fmt) from [<80185b74>]
(__handle_irq_event_percpu+0x220/0x240)
[ 48.155496] r8:81101d78 r7:00000137 r6:00000000 r5:00000001 r4:bc09aa80
[ 48.162216] [<80185954>] (__handle_irq_event_percpu) from
[<80185bd0>] (handle_irq_event_percpu+0x3c/0x98)
[ 48.171885] r10:80e748d4 r9:00000001 r8:81106fe8 r7:c0faf65c
r6:bd23e870 r5:bd23e870
[ 48.179724] r4:bd23e800
[ 48.182277] [<80185b94>] (handle_irq_event_percpu) from [<80185c74>]
(handle_irq_event+0x48/0x6c)
[ 48.191161] r5:bd23e870 r4:bd23e800
[ 48.194759] [<80185c2c>] (handle_irq_event) from [<8018ba84>]
(handle_edge_irq+0xb4/0x1f8)
[ 48.203037] r7:c0faf65c r6:80e8a410 r5:bd23e870 r4:bd23e800
[ 48.208714] [<8018b9d0>] (handle_edge_irq) from [<801849d8>]
(generic_handle_irq+0x30/0x44)
[ 48.217080] r9:00000001 r8:00000830 r7:00000000 r6:00000000
r5:be412e58 r4:00000003
[ 48.224845] [<801849a8>] (generic_handle_irq) from [<8057dca8>]
(dw_handle_msi_irq+0x9c/0xf4)
[ 48.233388] [<8057dc0c>] (dw_handle_msi_irq) from [<8057dd34>]
(dw_chained_msi_isr+0x34/0x80)
[ 48.241928] r9:8116cad4 r8:8111e8a8 r7:0000001a r6:bee36414
r5:811119dc r4:bee36400
[ 48.249698] [<8057dd00>] (dw_chained_msi_isr) from [<801e2dd0>]
(__ipipe_dispatch_irq+0x154/0x228)
[ 48.258669] r7:0000001a r6:00000001 r5:00000019 r4:00000000
[ 48.264350] [<801e2c7c>] (__ipipe_dispatch_irq) from [<801028dc>]
(__ipipe_grab_irq+0x54/0xb4)
[ 48.272977] r9:8116cad4 r8:f4000100 r7:bf3b7ae0 r6:81101eb8
r5:bf3b5ae0 r4:00000019
[ 48.280738] [<80102888>] (__ipipe_grab_irq) from [<80102a8c>]
(gic_handle_irq+0x58/0xb0)
[ 48.288843] r7:811072f8 r6:000003ff r5:f400010c r4:81101eb8
[ 48.294519] [<80102a34>] (gic_handle_irq) from [<80101c64>]
(__irq_svc+0x84/0x90)
[ 48.302015] Exception stack(0x81101eb8 to 0x81101f00)
[ 48.307084] 1ea0: 80000000 00000000
[ 48.315279] 1ec0: bf3b5ae0 00000000 80e8fae0 00000000 81106b68
81106ba8 811abf50 80bfbb3c
[ 48.323473] 1ee0: 80e748d4 81101f1c 81101f08 81101f08 801e26f8
801e26fc 60070013 ffffffff
[ 48.331665] r9:81100000 r8:811abf50 r7:81101eec r6:ffffffff
r5:60070013 r4:801e26fc
[ 48.339431] [<801e269c>] (ipipe_unstall_root) from [<8010a2d8>]
(arch_cpu_idle+0x98/0xb0)
[ 48.347619] r5:00000000 r4:80e8fae0
[ 48.351215] [<8010a240>] (arch_cpu_idle) from [<809a4a20>]
(default_idle_call+0x44/0x50)
[ 48.359317] r5:00000000 r4:81100000
[ 48.362914] [<809a49dc>] (default_idle_call) from [<8016059c>]
(do_idle+0xd8/0x1e4)
[ 48.370588] [<801604c4>] (do_idle) from [<8016097c>]
(cpu_startup_entry+0x28/0x2c)
[ 48.378172] r9:00000001 r8:811b1000 r7:00000000 r6:81106b40
r5:811b1000 r4:000000ce
[ 48.385936] [<80160954>] (cpu_startup_entry) from [<8099cc6c>]
(rest_init+0x9c/0xbc)
[ 48.393699] [<8099cbd0>] (rest_init) from [<80e00b44>]
(arch_call_rest_init+0x18/0x1c)
[ 48.401627] r5:811b1000 r4:80e748d4
[ 48.405220] [<80e00b2c>] (arch_call_rest_init) from [<80e00fa0>]
(start_kernel+0x3e0/0x4a4)
[ 48.413585] [<80e00bc0>] (start_kernel) from [<00000000>] (0x0)
[ 48.419518] ---[ end trace cea0b6f9eb21f4ec ]---
