Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: linux-riscv (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1934548
Title:
RISC-V: Illegal instruction
Status in Ubuntu:
Confirmed
Status in linux-riscv package in Ubuntu:
Confirmed
Bug description:
When booting the Ubuntu Server image on the SiFive HiFive Unmatched I am
getting the following error.
The last known working version was 1012.
The issue is being tracked on the SiFive forums at
https://forums.sifive.com/t/u-boot-says-unhandled-exception-illegal-instruction/4898
```
Starting kernel ...
[ 0.000000] Linux version 5.11.0-1014-generic
(buildd@riscv64-qemu-lcy01-084) (gcc (Ubuntu 10.3.0-1ubuntu1) 10.3.0, GNU ld
(GNU Binutils for Ubuntu) 2.36.1) #14-Ubuntu SMP Wed Jun 30 17:56:50 UTC 2021
(Ubuntu 5.11.0-1014.14-generic 5.11.22)
[ 0.000000] OF: fdt: Ignoring memory range 0x80000000 - 0x80200000
[ 0.000000] earlycon: sifive0 at MMIO 0x0000000010010000 (options '')
[ 0.000000] printk: bootconsole [sifive0] enabled
[ 0.000000] efi: UEFI not found.
[ 0.000000] Initial ramdisk at: 0x(____ptrval____) (183422976 bytes)
[ 0.000000] cma: Reserved 32 MiB at 0x00000000fe000000
[ 0.000000] Zone ranges:
[ 0.000000] DMA32 [mem 0x0000000080200000-0x00000000ffffffff]
[ 0.000000] Normal [mem 0x0000000100000000-0x000000047fffffff]
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x0000000080200000-0x000000047fffffff]
[ 0.000000] Initmem setup node 0 [mem
0x0000000080200000-0x000000047fffffff]
[ 0.000000] DMA32 zone: 512 pages in unavailable ranges
[ 0.000000] SBI specification v0.2 detected
[ 0.000000] SBI implementation ID=0x1 Version=0x9
[ 0.000000] SBI v0.2 TIME extension detected
[ 0.000000] SBI v0.2 IPI extension detected
[ 0.000000] SBI v0.2 RFENCE extension detected
[ 0.000000] software IO TLB: mapped [mem
0x00000000fa000000-0x00000000fe000000] (64MB)
[ 0.000000] SBI v0.2 HSM extension detected
[ 0.000000] CPU with hartid=0 is not available
[ 0.000000] CPU with hartid=0 is not available
[ 0.000000] riscv: ISA extensions acdfim
[ 0.000000] riscv: ELF capabilities acdfim
[ 0.000000] percpu: Embedded 26 pages/cpu s69272 r8192 d29032 u106496
[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 4128264
[ 0.000000] Kernel command line: root=/dev/nvme0n1p1 ro earlycon
[ 0.000000] Dentry cache hash table entries: 2097152 (order: 12, 16777216
bytes, linear)
[ 0.000000] Inode-cache hash table entries: 1048576 (order: 11, 8388608
bytes, linear)
[ 0.000000] Sorting __ex_table...
[ 0.000000] mem auto-init: stack:off, heap alloc:on, heap free:off
[ 0.000000] Memory: 16165452K/16775168K available (9854K kernel code,
5763K rwdata, 8192K rodata, 2519K init, 997K bss, 576948K reserved, 32768K
cma-reserved)
[ 0.000000] random: get_random_u64 called from kmem_cache_open+0x36/0x338
with crng_init=0
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[ 0.000000] ftrace: allocating 38893 entries in 152 pages
[ 0.000000] Oops - illegal instruction [#1]
[ 0.000000] Modules linked in:
[ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 5.11.0-1014-generic
#14-Ubuntu
[ 0.000000] epc: ffffffe00000920e ra : ffffffe000009384 sp :
ffffffe001803d30
[ 0.000000] gp : ffffffe001a14240 tp : ffffffe00180f440 t0 :
ffffffe07fe38000
[ 0.000000] t1 : ffffffe0019cd338 t2 : 0000000000000000 s0 :
ffffffe001803d70
[ 0.000000] s1 : 0000000000000000 a0 : ffffffe0000095aa a1 :
0000000000000001
[ 0.000000] a2 : 0000000000000002 a3 : 0000000000000000 a4 :
0000000000000000
[ 0.000000] a5 : 0000000000000000 a6 : 0000000000000004 a7 :
0000000052464e43
[ 0.000000] s2 : 0000000000000002 s3 : 0000000000000001 s4 :
0000000000000000
[ 0.000000] s5 : 0000000000000000 s6 : 0000000000000000 s7 :
0000000000000000
[ 0.000000] s8 : ffffffe001a170c0 s9 : 0000000000000001 s10:
0000000000000001
[ 0.000000] s11: 00000000fffcc5d0 t3 : 0000000000000068 t4 :
000000000000000b
[ 0.000000] t5 : ffffffe0019cd3e0 t6 : ffffffe001803cd8
[ 0.000000] status: 0000000200000100 badaddr: 000000000513f187 cause:
0000000000000002
[ 0.000000] ---[ end trace f67eb9af4d8d492b ]---
[ 0.000000] Kernel panic - not syncing: Attempted to kill the idle task!
[ 0.000000] ---[ end Kernel panic - not syncing: Attempted to kill the
idle task! ]---
```
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