Hi!
Is this particular issue known?
[ 0.990000] ------------[ cut here ]------------
[ 1.000000] WARNING: CPU: 0 PID: 66 at /build/linux-WOyEc8/linux-4.17.8/include/linux/dma-mapping.h:516 macsonic_init+0x6a/0x15a [macsonic]
[ 1.000000] Modules linked in: macsonic(+) esp_scsi
[ 1.000000] CPU: 0 PID: 66 Comm: systemd-udevd Not tainted 4.17.0-1-m68k #1 Debian 4.17.8-1
[ 1.000000] Stack from 3c963cd8:
3c963cd8 00380c35 0002c72c 000005c4 3c966d1c 00000001 00000000 002a0c98
3c966800 002b5a4e 0002c7c0 3f0623c4 00000204 3f0600ca 00000009 00000000
00000000 0034a2d6 3f0600ca 3f0623c4 00000204 00000003 00000000 3c966800
002aa262 000504f8 3f0622ea 3c966800 3f062928 50f0a000 3cc746c8 00000003
00000000 3dc3420a 3f062cd6 00404c64 00404c64 3dc0b800 001cccba 3dc34200
3dc3420a 3f062cd6 001cb744 3dc3420a 3c963ddc 000640f2 00000001 3dc3420a
[ 1.000000] Call Trace: [<0002c72c>] __warn+0xc0/0xc2
[ 1.000000] [<002a0c98>] kobject_create_and_add+0x0/0x54
[ 1.000000] [<0002c7c0>] warn_slowpath_null+0x26/0x2c
[ 1.000000] [<3f0600ca>] macsonic_init+0x6a/0x15a [macsonic]
[ 1.000000] [<3f0600ca>] macsonic_init+0x6a/0x15a [macsonic]
[ 1.000000] [<002aa262>] memcmp+0x0/0x2a
[ 1.000000] [<000504f8>] printk+0x0/0x18
[ 1.000000] [<3f0622ea>] mac_sonic_platform_probe+0x3c4/0x44a [macsonic]
[ 1.000000] [<001cccba>] platform_drv_probe+0x1c/0x48
[ 1.000000] [<001cb744>] driver_probe_device+0x256/0x360
[ 1.000000] [<000640f2>] module_put+0x0/0x48
[ 1.000000] [<002af5aa>] mutex_lock+0x0/0x1e
[ 1.000000] [<001cb8da>] __driver_attach+0x8c/0xe4
[ 1.000000] [<001c9ac0>] next_device+0x0/0x1c
[ 1.000000] [<001c9aca>] next_device+0xa/0x1c
[ 1.000000] [<001c9b3a>] bus_for_each_dev+0x5e/0x84
[ 1.000000] [<001cb148>] driver_attach+0x16/0x1c
[ 1.000000] [<001cb84e>] __driver_attach+0x0/0xe4
[ 1.000000] [<001cac62>] bus_add_driver+0x1c2/0x1f2
[ 1.000000] [<0004b3e8>] __wake_up+0x0/0x1c
[ 1.000000] [<001cbf8a>] driver_register+0x92/0xc6
[ 1.000000] [<3f065000>] mac_sonic_init+0x0/0x32 [macsonic]
[ 1.000000] [<3f065012>] mac_sonic_init+0x12/0x32 [macsonic]
[ 1.000000] [<00002154>] do_one_initcall+0x5a/0x162
[ 1.000000] [<000640f2>] module_put+0x0/0x48
[ 1.000000] [<00124ab8>] sysfs_create_bin_file+0x0/0x42
[ 1.000000] [<002a0c98>] kobject_create_and_add+0x0/0x54
[ 1.000000] [<0008e90e>] free_unref_page_commit.isra.13+0x68/0xae
[ 1.000000] [<00032000>] __ptrace_link+0x22/0x78
[ 1.000000] [<000bfe7a>] kmem_cache_alloc+0xe8/0xec
[ 1.000000] [<00124ab8>] sysfs_create_bin_file+0x0/0x42
[ 1.000000] [<002a0c98>] kobject_create_and_add+0x0/0x54
[ 1.000000] [<00040efa>] blocking_notifier_call_chain+0x0/0x1e
[ 1.000000] [<0006741c>] do_init_module+0x50/0x16c
[ 1.000000] [<3f065000>] mac_sonic_init+0x0/0x32 [macsonic]
[ 1.000000] [<00066b74>] load_module.constprop.29+0x1890/0x1b0e
[ 1.000000] [<00066f9c>] sys_finit_module+0x98/0xaa
[ 1.000000] [<000a3f05>] pcpu_alloc+0x211/0x352
[ 1.000000] [<00190000>] store_mode+0x1c/0xb2
[ 1.000000] [<00001084>] kernel_pg_dir+0x84/0x1000
[ 1.000000] [<0000293c>] syscall+0x8/0xc
[ 1.000000] [<0014c00e>] get_request+0x1c6/0x58a
[ 1.000000] ---[ end trace be2242e730fd1af7 ]---
Previous kernel versions don't have the issue. I haven't tested 4.18 yet.
Adrian
--
.''`. John Paul Adrian Glaubitz
: :' : Debian Developer - glaubitz@xxxxxxxxxx
`. `' Freie Universitaet Berlin - glaubitz@xxxxxxxxxxxxxxxxxxx
`- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913
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