One VM not starting anymore: qrexec-daemon startup failed

Hi everyone,
when starting a VM i get an error and it doesn’t start:

qrexec-daemon startup failed: 2021-11-07 11:48:59.600 qrexec-daemon[42824]: qrexec-daemon.c:295:init: Waiting for VM’s qrexec agent.
…2021-11-07 11:49:05.083 qrexec-daemon[42824]: qrexec-daemon.c:134:sigchld_parent_handler: Connection to the VM failed

I already tried starting in “debug mode” (under settings) but didn’t help.
I also read the logs and compared it with a VM with a successful start:
Only difference was sched_clock: Marking stable (2624982662, 2006541)->(3043089299, -416100096) was different from Marking stable (3484879361, 2604674)->(3858351613, -370867578)

… identical
[2021-11-07 11:16:30] [ 2.676195] Invalid max_queues (4), will use default max: 2.
—> New from here:
[2021-11-07 11:16:31] [ 3.163981] blkfront: xvda: flush diskcache: enabled; persistent grants: enabled; indirect descriptors: enabled;
[2021-11-07 11:16:31] [ 3.173024] xvda: xvda3
[2021-11-07 11:16:31] [ 3.288737] blkfront: xvdb: flush diskcache: enabled; persistent grants: enabled; indirect descriptors: enabled;
[2021-11-07 11:16:31] [ 3.358780] blkfront: xvdc: flush diskcache: enabled; persistent grants: enabled; indirect descriptors: enabled;
[2021-11-07 11:16:31] [ 3.366675] blkfront: xvdd: barrier or flush: disabled; persistent grants: enabled; indirect descriptors: enabled;
[2021-11-07 11:16:31] Waiting for /dev/xvda* devices…
[2021-11-07 11:16:31] Qubes: Doing R/W setup for TemplateVM…
[2021-11-07 11:16:31] [ 3.669239] xvdc: xvdc1 xvdc3
[2021-11-07 11:16:31] Setting up swapspace version 1, size = 1024 MiB (1073737728 bytes)
[2021-11-07 11:16:31] no label, UUID=a9eee70d-bb04-40a3-be35-2db81165d1ac
[2021-11-07 11:16:31] Qubes: done.
[2021-11-07 11:16:31] mount: /sysroot: wrong fs type, bad option, bad superblock on /dev/xvda, missing codepage or helper program, or other error.
[2021-11-07 11:16:31] Waiting for /dev/xvdd device…
[2021-11-07 11:16:31] [ 3.702296] EXT4-fs (xvdd): mounting ext3 file system using the ext4 subsystem
[2021-11-07 11:16:31] [ 3.704214] EXT4-fs (xvdd): mounted filesystem with ordered data mode. Opts: (null)
[2021-11-07 11:16:31] mount: /tmp/modules: WARNING: device write-protected, mounted read-only.
[2021-11-07 11:16:31] mount: /sysroot/lib/modules: mount point does not exist.
[2021-11-07 11:16:31] mount: /sysroot: mount point not mounted or bad option.
[2021-11-07 11:16:31] switch_root: failed to mount moving /sysroot to /: Invalid argument
[2021-11-07 11:16:31] switch_root: failed. Sorry.
[2021-11-07 11:16:31] [ 3.717639] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000100
[2021-11-07 11:16:31] [ 3.717664] CPU: 0 PID: 1 Comm: switch_root Not tainted 5.4.88-1.qubes.x86_64 #1
[2021-11-07 11:16:31] [ 3.717686] Call Trace:
[2021-11-07 11:16:31] [ 3.717699] dump_stack+0x64/0x88
[2021-11-07 11:16:31] [ 3.717713] panic+0x10b/0x2ed
[2021-11-07 11:16:31] [ 3.717726] do_exit.cold+0x53/0xb1
[2021-11-07 11:16:31] [ 3.717739] do_group_exit+0x33/0xa0
[2021-11-07 11:16:31] [ 3.717751] __x64_sys_exit_group+0x14/0x20
[2021-11-07 11:16:31] [ 3.717764] do_syscall_64+0x5b/0xf0
[2021-11-07 11:16:31] [ 3.717776] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[2021-11-07 11:16:31] [ 3.717792] RIP: 0033:0x7647157593c1
[2021-11-07 11:16:31] [ 3.717804] Code: dd 4a 0f 00 be e7 00 00 00 ba 3c 00 00 00 eb 16 66 0f 1f 84 00 00 00 00 00 89 d0 0f 05 48 3d 00 f0 ff ff 77 1c f4 89 f0 0f 05 <48> 3d 00 f0 ff ff 76 e7 f7 d8 64 41 89 00 eb df 0f 1f 80 00 00 00
[2021-11-07 11:16:31] [ 3.717853] RSP: 002b:00007fffa9920a38 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[2021-11-07 11:16:31] [ 3.717876] RAX: ffffffffffffffda RBX: 0000764715850470 RCX: 00007647157593c1
[2021-11-07 11:16:31] [ 3.717897] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
[2021-11-07 11:16:31] [ 3.717919] RBP: 0000000000000001 R08: ffffffffffffff80 R09: 0000000000000001
[2021-11-07 11:16:31] [ 3.717954] R10: 00007fffa9920fa6 R11: 0000000000000246 R12: 0000764715850470
[2021-11-07 11:16:31] [ 3.717974] R13: 0000000000000002 R14: 0000764715850948 R15: 0000000000000000
[2021-11-07 11:16:31] [ 3.718047] Kernel Offset: disabled

Would be happy if we could get this VM running again since there is quite some data on it.
Thank you all

I’m getting the same thing after upgrading to Fedora-34

Edit: Going back to Fedora-32 as the template for that vm fixed it. (Qubes 4.04)

Fedora 34 seems slower to start for all vms for some reason.