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Groups > linux.debian.bugs.dist > #922104

Bug#908161: Please enable building a riscv64 kernel image

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Control: tags 908161 + patch

On Tue, Sep 18, 2018 at 08:57:01PM +0200, Karsten Merker wrote:
> On Sat, Sep 08, 2018 at 11:15:36PM +0100, Ben Hutchings wrote:
> 
> [Building a linux-image-*-riscv64 binary package]
> 
> > The addition of riscv will have to wait until it has support
> > for an initramfs.
> > 
> > Is this commit sufficient to make booting with an initramfs work:
> > 
> > commit cdc7274029ca5984350a057a2399aaa340d3be2d
> > Author: Guenter Roeck <linux@roeck-us.net>
> > Date:   Tue Aug 28 17:33:46 2018 -0700
> > 
> >     riscv: Do not overwrite initrd_start and initrd_end
> > 
> > or are more changes needed?
> 
> Hello,
> 
> just a short status update: the aforementioned patch has been
> included in the upstream 4.19-rc4 release and I can confirm
> that the initramfs support for riscv64 works with 4.19-rc4.
> 
> The other major issue in this bug (unversioned symbols breaking
> the package build) is still unresolved; I'll report back as soon
> as I have received feedback from the upstream RISC-V architecture
> maintainer.

Hello,

all previously mentioned issues have been addressed in
the meantime:

- The broken initrd support has been fixed upstream in kernel
  4.19-rc4.

- The symbol version issue has been fixed upstream in kernel
  4.19-rc6.

- The riscv64 kernel config has been modularized as far as
  possible and all redundant entries have been removed.

- Headings have been added to the kernel config.

Attached is a new patch, alternatively it is available as a merge
request on salsa as suggested earlier in the discussion:

  https://salsa.debian.org/kernel-team/linux/merge_requests/66

The resulting kernel has been successfully tested on a qemu
"virt" board:

[    0.000000] OF: fdt: Ignoring memory range 0x80000000 - 0x80200000
[    0.000000] Linux version 4.19.0-rc7-riscv64 (debian-kernel@lists.debian.org) (gcc version 8.2.0 (Debian 8.2.0-7)) #1 SMP Debian 4.19~rc7-1~exp2 (2018-10-08)
[    0.000000] bootconsole [early0] enabled
[    0.000000] Initial ramdisk at: 0x(____ptrval____) (43521258 bytes)
[    0.000000] Zone ranges:
[    0.000000]   DMA32    [mem 0x0000000080200000-0x00000000ffffffff]
[    0.000000]   Normal   [mem 0x0000000100000000-0x00002fffffffffff]
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000080200000-0x00000002ffffffff]
[    0.000000] Initmem setup node 0 [mem 0x0000000080200000-0x00000002ffffffff]
[    0.000000] On node 0 totalpages: 2620928
[    0.000000]   DMA32 zone: 8184 pages used for memmap
[    0.000000]   DMA32 zone: 0 pages reserved
[    0.000000]   DMA32 zone: 523776 pages, LIFO batch:63
[    0.000000]   Normal zone: 32768 pages used for memmap
[    0.000000]   Normal zone: 2097152 pages, LIFO batch:63
[    0.000000] software IO TLB: mapped [mem 0xfbfff000-0xfffff000] (64MB)
[    0.000000] elf_hwcap is 0x112d
[    0.000000] percpu: Embedded 19 pages/cpu @(____ptrval____) s39384 r8192 d30248 u77824
[    0.000000] pcpu-alloc: s39384 r8192 d30248 u77824 alloc=19*4096
[    0.000000] pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3 
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 2579976
[    0.000000] Kernel command line: console=ttyS0 ro root=/dev/vda
[    0.000000] Dentry cache hash table entries: 2097152 (order: 12, 16777216 bytes)
[    0.000000] Inode-cache hash table entries: 1048576 (order: 11, 8388608 bytes)
[    0.000000] Sorting __ex_table...
[    0.000000] Memory: 10178016K/10483712K available (4955K kernel code, 504K rwdata, 1633K rodata, 446K init, 934K bss, 305696K reserved, 0K cma-reserved)
[    0.000000] random: get_random_u64 called from __kmem_cache_create+0x46/0x55c with crng_init=0
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[    0.000000] ftrace: allocating 21055 entries in 83 pages
[    0.000000] rcu: Hierarchical RCU implementation.
[    0.000000] rcu: 	RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=4.
[    0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=4
[    0.000000] NR_IRQS: 0, nr_irqs: 0, preallocated irqs: 0
[    0.000000] plic: mapped 10 interrupts to 4 (out of 8) handlers.
[    0.000000] clocksource: riscv_clocksource: mask: 0xffffffffffffffff max_cycles: 0x24e6a1710, max_idle_ns: 440795202120 ns
[    0.004000] Console: colour dummy device 80x25
[    0.008000] Calibrating delay loop (skipped), value calculated using timer frequency.. 20.00 BogoMIPS (lpj=40000)
[    0.012000] pid_max: default: 32768 minimum: 301
[    0.016000] Security Framework initialized
[    0.016000] Yama: disabled by default; enable with sysctl kernel.yama.*
[    0.020000] AppArmor: AppArmor initialized
[    0.024000] Mount-cache hash table entries: 32768 (order: 6, 262144 bytes)
[    0.028000] Mountpoint-cache hash table entries: 32768 (order: 6, 262144 bytes)
[    0.072000] rcu: Hierarchical SRCU implementation.
[    0.092000] smp: Bringing up secondary CPUs ...
[    0.112000] smp: Brought up 1 node, 4 CPUs
[    0.160000] devtmpfs: initialized
[    0.176000] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[    0.180000] futex hash table entries: 1024 (order: 4, 65536 bytes)
[    0.188000] NET: Registered protocol family 16
[    0.192000] audit: initializing netlink subsys (disabled)
[    0.196000] audit: type=2000 audit(0.192:1): state=initialized audit_enabled=0 res=1
[    0.244000] vgaarb: loaded
[    0.244000] pps_core: LinuxPPS API ver. 1 registered
[    0.244000] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    0.248000] PTP clock support registered
[    0.264000] clocksource: Switched to clocksource riscv_clocksource
[    0.368000] VFS: Disk quotas dquot_6.6.0
[    0.368000] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[    0.376000] AppArmor: AppArmor Filesystem Enabled
[    0.464000] NET: Registered protocol family 2
[    0.476000] tcp_listen_portaddr_hash hash table entries: 8192 (order: 5, 131072 bytes)
[    0.476000] TCP established hash table entries: 131072 (order: 8, 1048576 bytes)
[    0.476000] TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
[    0.480000] TCP: Hash tables configured (established 131072 bind 65536)
[    0.480000] UDP hash table entries: 8192 (order: 6, 262144 bytes)
[    0.484000] UDP-Lite hash table entries: 8192 (order: 6, 262144 bytes)
[    0.488000] NET: Registered protocol family 1
[    0.488000] PCI: CLS 0 bytes, default 64
[    0.496000] Unpacking initramfs...
[    6.288000] Initialise system trusted keyrings
[    6.292000] workingset: timestamp_bits=46 max_order=22 bucket_order=0
[    6.320000] zbud: loaded
[    7.464000] Key type asymmetric registered
[    7.464000] Asymmetric key parser 'x509' registered
[    7.468000] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249)
[    7.468000] io scheduler noop registered
[    7.472000] io scheduler deadline registered
[    7.472000] io scheduler cfq registered (default)
[    7.472000] io scheduler mq-deadline registered
[    7.492000] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
[    7.508000] console [ttyS0] disabled
[    7.508000] 10000000.uart: ttyS0 at MMIO 0x10000000 (irq = 10, base_baud = 230400) is a 16550A
[    7.552000] console [ttyS0] enabled
[    7.556000] mousedev: PS/2 mouse device common for all mice
[    7.560000] ledtrig-cpu: registered to indicate activity on CPUs
[    7.568000] NET: Registered protocol family 10
[    7.788000] Segment Routing with IPv6
[    7.788000] mip6: Mobile IPv6
[    7.792000] NET: Registered protocol family 17
[    7.792000] mpls_gso: MPLS GSO support
[    7.800000] bootconsole [early0] uses init memory and must be disabled even before the real one is ready
[    7.800000] bootconsole [early0] disabled
[    7.804000] registered taskstats version 1
[    7.804000] Loading compiled-in X.509 certificates
[    7.972000] Loaded X.509 cert 'secure-boot-test-key-lfaraone: 97c1b25cddf9873ca78a58f3d73bf727d2cf78ff'
[    7.976000] zswap: loaded using pool lzo/zbud
[    7.980000] AppArmor: AppArmor sha1 policy hashing enabled
[    7.980000] hctosys: unable to open rtc device (rtc0)
[    8.928000] Freeing unused kernel memory: 444K
[    8.928000] This architecture does not have kernel memory protection.
[    8.928000] Run /init as init process
[   11.472000] virtio_blk virtio1: [vda] 419430400 512-byte logical blocks (215 GB/200 GiB)
[   13.768000] EXT4-fs (vda): mounted filesystem with ordered data mode. Opts: (null)
[   18.532000] random: fast init done
[   27.072000] random: crng init done
[   32.004000] EXT4-fs (vda): re-mounted. Opts: (null)

Regards,
Karsten
-- 
Gem. Par. 28 Abs. 4 Bundesdatenschutzgesetz widerspreche ich der Nutzung
sowie der Weitergabe meiner personenbezogenen Daten für Zwecke der
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Bug#908161: Please enable building a riscv64 kernel image Karsten Merker <merker@debian.org> - 2018-10-11 21:50 +0200

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