Hi Xianting, On Thu, 28 Oct 2021 09:51:00 +0800 Xianting Tian 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 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: @@ -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 - 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 -- Cheers, Stephen Rothwell