[Bug 1921664] Re: Recent update broke qemu-system-riscv64

[Tommy Thorn]

That would explain why I could reproduce with personal builds.  Glibc
looks very relevant here.

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Title:
  Recent update broke qemu-system-riscv64

Status in binutils package in Ubuntu:
  New
Status in gcc-10 package in Ubuntu:
  New
Status in glibc package in Ubuntu:
  New
Status in qemu package in Ubuntu:
  Confirmed

Bug description:
  I regularly run a RISC-V (RV64GC) QEMU VM, but an update a few days
  ago broke it.  Now when I launch it, it hits an assertion:

                                                                                    
  OpenSBI v0.6                                                                      
     ____                    _____ ____ _____                             
    / __ \                  / ____|  _ \_   _|                                      
   | |  | |_ __   ___ _ __ | (___ | |_) || |                                        
   | |  | | '_ \ / _ \ '_ \ \___ \|  _ < | |                                                                                                                           
   | |__| | |_) |  __/ | | |____) | |_) || |_                                                                                                                          
    \____/| .__/ \___|_| |_|_____/|____/_____|                                      
          | |                                                                                                                                                          
          |_|                                                                       
                                                                                    
  ...
  Found /boot/extlinux/extlinux.conf                                                                                                                                   
  Retrieving file: /boot/extlinux/extlinux.conf                                                                                                                        
  618 bytes read in 2 ms (301.8 KiB/s)                                              
  RISC-V Qemu Boot Options                                                          
  1:      Linux kernel-5.5.0-dirty         
  2:      Linux kernel-5.5.0-dirty (recovery mode)                            
  Enter choice: 1:        Linux kernel-5.5.0-dirty                                  
  Retrieving file: /boot/initrd.img-5.5.0-dirty                                                                                                                        
  qemu-system-riscv64: ../../block/aio_task.c:64: aio_task_pool_wait_one: Assertion `qemu_coroutine_self() == pool->main_co' failed.                                   
  ./run.sh: line 31:  1604 Aborted                 (core dumped) qemu-system-riscv64 -machine virt -nographic -smp 8 -m 8G -bios fw_payload.bin -device virtio-blk-devi
  ce,drive=hd0 -object rng-random,filename=/dev/urandom,id=rng0 -device virtio-rng-device,rng=rng0 -drive file=riscv64-UbuntuFocal-qemu.qcow2,format=qcow2,id=hd0 -devi
  ce virtio-net-device,netdev=usernet -netdev user,id=usernet,$ports                

  Interestingly this doesn't happen on the AMD64 version of Ubuntu 21.04
  (fully updated).

  
  Think you have everything already, but just in case:

  $ lsb_release -rd
  Description:    Ubuntu Hirsute Hippo (development branch)
  Release:        21.04

  $ uname -a
  Linux minimacvm 5.11.0-11-generic #12-Ubuntu SMP Mon Mar 1 19:27:36 UTC 2021 aarch64 aarch64 aarch64 GNU/Linux
  (note this is a VM running on macOS/M1)

  $ apt-cache policy qemu
  qemu:
    Installed: 1:5.2+dfsg-9ubuntu1
    Candidate: 1:5.2+dfsg-9ubuntu1
    Version table:
   *** 1:5.2+dfsg-9ubuntu1 500
          500 http://ports.ubuntu.com/ubuntu-ports hirsute/universe arm64 Packages
          100 /var/lib/dpkg/status

  ProblemType: Bug
  DistroRelease: Ubuntu 21.04
  Package: qemu 1:5.2+dfsg-9ubuntu1
  ProcVersionSignature: Ubuntu 5.11.0-11.12-generic 5.11.0
  Uname: Linux 5.11.0-11-generic aarch64
  ApportVersion: 2.20.11-0ubuntu61
  Architecture: arm64
  CasperMD5CheckResult: unknown
  CurrentDmesg:
   Error: command ['pkexec', 'dmesg'] failed with exit code 127: polkit-agent-helper-1: error response to PolicyKit daemon: GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed: No session for cookie
   Error executing command as another user: Not authorized
   
   This incident has been reported.
  Date: Mon Mar 29 02:33:25 2021
  Dependencies:
   
  KvmCmdLine: COMMAND         STAT  EUID  RUID     PID    PPID %CPU COMMAND
  Lspci-vt:
   -[0000:00]-+-00.0  Apple Inc. Device f020
              +-01.0  Red Hat, Inc. Virtio network device
              +-05.0  Red Hat, Inc. Virtio console
              +-06.0  Red Hat, Inc. Virtio block device
              \-07.0  Red Hat, Inc. Virtio RNG
  Lsusb: Error: command ['lsusb'] failed with exit code 1:
  Lsusb-t:
   
  Lsusb-v: Error: command ['lsusb', '-v'] failed with exit code 1:
  ProcEnviron:
   TERM=screen
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=C.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: console=hvc0 root=/dev/vda
  SourcePackage: qemu
  UpgradeStatus: Upgraded to hirsute on 2020-12-30 (88 days ago)
  acpidump:
   Error: command ['pkexec', '/usr/share/apport/dump_acpi_tables.py'] failed with exit code 127: polkit-agent-helper-1: error response to PolicyKit daemon: GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed: No session for cookie
   Error executing command as another user: Not authorized
   
   This incident has been reported.

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