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Subject: Re: linux-next: Tree for Oct 25
To:     Stephen Rothwell <sfr@canb.auug.org.au>
Cc:     Linux Next Mailing List <linux-next@vger.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Shile Zhang <shile.zhang@linux.alibaba.com>
References: <20211025204921.73cb3011@canb.auug.org.au>
 <20211027224231.1634cc6c@canb.auug.org.au>
 <864bbf0b-e6db-1a97-80f5-a92968a4e086@linux.alibaba.com>
 <20211028155126.0b187410@canb.auug.org.au>
From:   Xianting Tian <xianting.tian@linux.alibaba.com>
Message-ID: <8c917fd9-c569-560e-5d6f-e19417f61cdf@linux.alibaba.com>
Date:   Thu, 28 Oct 2021 15:59:02 +0800
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在 2021/10/28 下午12:51, Stephen Rothwell 写道:
> Hi Xianting,
>
> On Thu, 28 Oct 2021 09:51:00 +0800 Xianting Tian <xianting.tian@linux.alibaba.com> wrote:
>> 在 2021/10/27 下午7:42, Stephen Rothwell 写道:
>>> Hi all,
>>>
>>> On Mon, 25 Oct 2021 20:49:21 +1100 Stephen Rothwell <sfr@canb.auug.org.au> wrote:
>>>> There seems to be something amiss with cnosole output in today's release
>>>> (at least on my ppc qemu boot tests).
>>> The console output seems to be back today.  I assume its repair had
>>> something to do with commit
>>>
>>>     60f41e848492 ("Revert "tty: hvc: pass DMA capable memory to put_chars()"")
>>>   
>> hi Stephen，
>>
>> Thanks for the info, Could you share more details about the issue you met? is it about early console print issue?
>>
> Here is the diff between my boot logs:
thanks, I checked the log, Can I understand it as you missed some early 
bootup log  when use new release?
>
> @@ -33,14 +33,14 @@
>   
>   Booting from memory...
>   OF stdout device is: /vdevice/vty@71000000
> -Preparing to boot Linux version 5.15.0-rc6 (sfr@ash) (gcc (Debian 10.3.0-11) 10.3.0, GNU ld (GNU Binutils for Debian) 2.37) #2 SMP Fri Oct 22 20:04:18 AEDT 2021
> +Preparing to boot Linux version 5.15.0-rc7 (sfr@ash) (gcc (Debian 10.3.0-11) 10.3.0, GNU ld (GNU Binutils for Debian) 2.37) #2 SMP Tue Oct 26 19:57:54 AEDT 2021
>   Detected machine type: 0000000000000101
>   command line:
>   Max number of cores passed to firmware: 2048 (NR_CPUS = 2048)
>   Calling ibm,client-architecture-support... done
>   memory layout at init:
>     memory_limit : 0000000000000000 (16 MB aligned)
> -  alloc_bottom : 0000000002020000
> +  alloc_bottom : 0000000002f50000
>     alloc_top    : 0000000030000000
>     alloc_top_hi : 0000000080000000
>     rmo_top      : 0000000030000000
> @@ -50,8 +50,8 @@
>   copying OF device tree...
>   Building dt strings...
>   Building dt structure...
> -Device tree strings 0x0000000002030000 -> 0x0000000002030a77
> -Device tree struct  0x0000000002040000 -> 0x0000000002050000
> +Device tree strings 0x0000000002f60000 -> 0x0000000002f60a77
> +Device tree struct  0x0000000002f70000 -> 0x0000000002f80000
>   Quiescing Open Firmware ...
>   Booting Linux via __start() @ 0x0000000000400000 ...
>    hash-mmu: Page sizes from device-tree:
> @@ -59,8 +59,8 @@
>    hash-mmu: base_shift=16: shift=16, sllp=0x0110, avpnm=0x00000000, tlbiel=1, penc=1
>    Using 1TB segments
>    hash-mmu: Initializing hash mmu with SLB
> - Linux version 5.15.0-rc6 (sfr@ash) (gcc (Debian 10.3.0-11) 10.3.0, GNU ld (GNU Binutils for Debian) 2.37) #2 SMP Fri Oct 22 20:04:18 AEDT 2021
> - Found initrd at 0xc000000001e50000:0xc00000000201d70b
> + Linux version 5.15.0-rc7 (sfr@ash) (gcc (Debian 10.3.0-11) 10.3.0, GNU ld (GNU Binutils for Debian) 2.37) #2 SMP Tue Oct 26 19:57:54 AEDT 2021
> + Found initrd at 0xc000000002d80000:0xc000000002f4d70b
>    Using pSeries machine description
>    printk: bootconsole [udbg0] enabled
>    Partition configured for 1 cpus.
> @@ -106,9 +106,9 @@
>    Dentry cache hash table entries: 262144 (order: 5, 2097152 bytes, linear)
>    Inode-cache hash table entries: 131072 (order: 4, 1048576 bytes, linear)
>    mem auto-init: stack:off, heap alloc:off, heap free:off
> - Memory: 1995200K/2097152K available (14208K kernel code, 3136K rwdata, 2944K rodata, 4992K init, 1531K bss, 101952K reserved, 0K cma-reserved)
> + Memory: 1979648K/2097152K available (14208K kernel code, 3136K rwdata, 2944K rodata, 4992K init, 1531K bss, 117504K reserved, 0K cma-reserved)
>    SLUB: HWalign=128, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
> - ftrace: allocating 33247 entries in 13 pages
> + ftrace: allocating 33265 entries in 13 pages
>    ftrace: allocated 13 pages with 3 groups
>    trace event string verifier disabled
>    rcu: Hierarchical RCU implementation.
> @@ -124,81 +124,9 @@
>    clocksource: timebase mult[1f40000] shift[24] registered
>    Console: colour dummy device 80x25
>    printk: console [hvc0] enabled
> - printk: console [hvc0] enabled
> - printk: bootconsole [udbg0] disabled
>    printk: bootconsole [udbg0] disabled
> - pid_max: default: 32768 minimum: 301
> - Mount-cache hash table entries: 8192 (order: 0, 65536 bytes, linear)
> - Mountpoint-cache hash table entries: 8192 (order: 0, 65536 bytes, linear)
> - POWER8 performance monitor hardware support registered
> - rcu: Hierarchical SRCU implementation.
> - smp: Bringing up secondary CPUs ...
> - smp: Brought up 1 node, 1 CPU
> - numa: Node 0 CPUs: 0
> - devtmpfs: initialized
> - PCI host bridge /pci@800000020000000  ranges:
> -   IO 0x0000200000000000..0x000020000000ffff -> 0x0000000000000000
> -  MEM 0x0000200080000000..0x00002000ffffffff -> 0x0000000080000000
> -  MEM 0x0000210000000000..0x000021ffffffffff -> 0x0000210000000000
> - PCI: OF: PROBE_ONLY disabled
> - clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
> - futex hash table entries: 256 (order: -1, 32768 bytes, linear)
> - NET: Registered PF_NETLINK/PF_ROUTE protocol family
> - audit: initializing netlink subsys (disabled)
> - cpuidle: using governor menu
> - pstore: Registered nvram as persistent store backend
>   
> Linux ppc64le
> -#2 SMP Fri Oct 2 audit: type=2000 audit(1634893757.210:1): state=initialized audit_enabled=0 res=1
> - EEH: pSeries platform initialized
> - software IO TLB: tearing down default memory pool
> - PCI: Probing PCI hardware
> - PCI host bridge to bus 0000:00
> - pci_bus 0000:00: root bus resource [io  0x10000-0x1ffff] (bus address [0x0000-0xffff])
> - pci_bus 0000:00: root bus resource [mem 0x200080000000-0x2000ffffffff] (bus address [0x80000000-0xffffffff])
> - pci_bus 0000:00: root bus resource [mem 0x210000000000-0x21ffffffffff 64bit]
> - pci_bus 0000:00: root bus resource [bus 00-ff]
> - IOMMU table initialized, virtual merging enabled
> - pci_bus 0000:00: resource 4 [io  0x10000-0x1ffff]
> - pci_bus 0000:00: resource 5 [mem 0x200080000000-0x2000ffffffff]
> - pci_bus 0000:00: resource 6 [mem 0x210000000000-0x21ffffffffff 64bit]
> - EEH: No capable adapters found: recovery disabled.
> - kprobes: kprobe jump-optimization is enabled. All kprobes are optimized if possible.
> - iommu: Default domain type: Translated
> - iommu: DMA domain TLB invalidation policy: strict mode
> - vgaarb: loaded
> - SCSI subsystem initialized
> - usbcore: registered new interface driver usbfs
> - usbcore: registered new interface driver hub
> - usbcore: registered new device driver usb
> - pps_core: LinuxPPS API ver. 1 registered
> - pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
> - PTP clock support registered
> - clocksource: Switched to clocksource timebase
> - hugetlbfs: disabling because there are no supported hugepage sizes
> - NET: Registered PF_INET protocol family
> - IP idents hash table entries: 32768 (order: 2, 262144 bytes, linear)
> - tcp_listen_portaddr_hash hash table entries: 4096 (order: 0, 65536 bytes, linear)
> - TCP established hash table entries: 16384 (order: 1, 131072 bytes, linear)
> - TCP bind hash table entries: 16384 (order: 2, 262144 bytes, linear)
> - TCP: Hash tables configured (established 16384 bind 16384)
> - UDP hash table entries: 2048 (order: 0, 65536 bytes, linear)
> - UDP-Lite hash table entries: 2048 (order: 0, 65536 bytes, linear)
> - NET: Registered PF_UNIX/PF_LOCAL protocol family
> - RPC: Registered named UNIX socket transport module.
> - RPC: Registered udp transport module.
> - RPC: Registered tcp transport module.
> - RPC: Registered tcp NFSv4.1 backchannel transport module.
> - PCI: CLS 0 bytes, default 128
> - Trying to unpack rootfs image as initramfs...
> - vas: API is supported only with radix page tables
> - workingset: timestamp_bits=38 max_order=15 bucket_order=0
> - NFS: Registering the id_resolver key type
> - Key type id_resolver registered
> - Key type id_legacy registered
> - Block layer SCSI generic (bsg) driver version 0.4 loaded (major 250)
> - io scheduler mq-deadline registered
> - io scheduler kyber registered
> - Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
> +#2 SMP Tue Oct 2 Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
>    Non-volatile memory driver v1.3
>    Freeing initrd memory: 1792K
>    brd: module loaded
> @@ -230,7 +158,7 @@
>    ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
>    ohci-pci: OHCI PCI platform driver
>    rtc-generic rtc-generic: registered as rtc0
> - rtc-generic rtc-generic: setting system clock to 2021-10-22T09:09:21 UTC (1634893761)
> + rtc-generic rtc-generic: setting system clock to 2021-10-26T09:02:50 UTC (1635238970)
>    i2c_dev: i2c /dev entries driver
>    device-mapper: uevent: version 1.0.3
>    device-mapper: ioctl: 4.45.0-ioctl (2021-03-22) initialised: dm-devel@redhat.com
>