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bcc44f6b74
There is no VIA2 chip on the Mac IIfx, so don't call via_flush_cache().
This avoids a boot crash which appeared in v5.4.
printk: console [ttyS0] enabled
printk: bootconsole [debug0] disabled
printk: bootconsole [debug0] disabled
Calibrating delay loop... 9.61 BogoMIPS (lpj=48064)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
devtmpfs: initialized
random: get_random_u32 called from bucket_table_alloc.isra.27+0x68/0x194 with crng_init=0
clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
futex hash table entries: 256 (order: -1, 3072 bytes, linear)
NET: Registered protocol family 16
Data read fault at 0x00000000 in Super Data (pc=0x8a6a)
BAD KERNEL BUSERR
Oops: 00000000
Modules linked in:
PC: [<00008a6a>] via_flush_cache+0x12/0x2c
SR: 2700 SP: 01c1fe3c a2: 01c24000
d0: 00001119 d1: 0000000c d2: 00012000 d3: 0000000f
d4: 01c06840 d5: 00033b92 a0: 00000000 a1: 00000000
Process swapper (pid: 1, task=01c24000)
Frame format=B ssw=0755 isc=0200 isb=fff7 daddr=00000000 dobuf=01c1fed0
baddr=00008a6e dibuf=0000004e ver=f
Stack from 01c1fec4:
01c1fed0 00007d7e 00010080 01c1fedc 0000792e 00000001 01c1fef4 00006b40
01c80000 00040000 00000006 00000003 01c1ff1c 004a545e 004ff200 00040000
00000000 00000003 01c06840 00033b92 004a5410 004b6c88 01c1ff84 000021e2
00000073 00000003 01c06840 00033b92 0038507a 004bb094 004b6ca8 004b6c88
004b6ca4 004b6c88 000021ae 00020002 00000000 01c0685d 00000000 01c1ffb4
0049f938 00409c85 01c06840 0045bd40 00000073 00000002 00000002 00000000
Call Trace: [<00007d7e>] mac_cache_card_flush+0x12/0x1c
[<00010080>] fix_dnrm+0x2/0x18
[<0000792e>] cache_push+0x46/0x5a
[<00006b40>] arch_dma_prep_coherent+0x60/0x6e
[<00040000>] switched_to_dl+0x76/0xd0
[<004a545e>] dma_atomic_pool_init+0x4e/0x188
[<00040000>] switched_to_dl+0x76/0xd0
[<00033b92>] parse_args+0x0/0x370
[<004a5410>] dma_atomic_pool_init+0x0/0x188
[<000021e2>] do_one_initcall+0x34/0x1be
[<00033b92>] parse_args+0x0/0x370
[<0038507a>] strcpy+0x0/0x1e
[<000021ae>] do_one_initcall+0x0/0x1be
[<00020002>] do_proc_dointvec_conv+0x54/0x74
[<0049f938>] kernel_init_freeable+0x126/0x190
[<0049f94c>] kernel_init_freeable+0x13a/0x190
[<004a5410>] dma_atomic_pool_init+0x0/0x188
[<00041798>] complete+0x0/0x3c
[<000b9b0c>] kfree+0x0/0x20a
[<0038df98>] schedule+0x0/0xd0
[<0038d604>] kernel_init+0x0/0xda
[<0038d610>] kernel_init+0xc/0xda
[<0038d604>] kernel_init+0x0/0xda
[<00002d38>] ret_from_kernel_thread+0xc/0x14
Code: 0000 2079 0048 10da 2279 0048 10c8 d3c8 <1011> 0200 fff7 1280 d1f9 0048 10c8 1010 0000 0008 1080 4e5e 4e75 4e56 0000 2039
Disabling lock debugging due to kernel taint
Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b
Thanks to Stan Johnson for capturing the console log and running git
bisect.
Git bisect said commit
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.