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    SubjectRe: linux-next: Tree for Oct 25
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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
    >

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