Bug#973765: linux-image-5.9.0-1-amd64: Apple NVMe SSD controller fails to start

["Harold R. Grove" <rgrove@rsu20.org>]

Package: linux-image-5.9.0-1-amd64
Severity: critical
Justification: breaks the whole system
X-Debbugs-Cc: rgrove@rsu20.org

Dear Maintainer,

Updating to any Linux kernel after 5.7.0-2-amd64 makes the NVMe SSD on Apple MacBookAir7,1 fail to start. 
dmesg spits out:
[   64.565416] nvme nvme0: controller is down; will reset: CSTS=0x3, PCI_STATUS=0x10
[   64.645531] nvme nvme0: detected Apple NVMe controller, set queue depth=2 to work around controller resets
[   80.149335] nvme nvme0: Device not ready; aborting reset, CSTS=0x3
[   80.149373] nvme nvme0: Removing after probe failure status: -19
[   80.173515] blk_update_request: I/O error, dev nvme0n1, sector 2056 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 0
[   80.173611] blk_update_request: I/O error, dev nvme0n1, sector 0 op 0x1:(WRITE) flags 0x800 phys_seg 0 prio class 0
[   80.173623] blk_update_request: I/O error, dev nvme0n1, sector 208768 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 0
[   80.173638] Buffer I/O error on dev nvme0n1p1, logical block 1, async page read
[   80.173873] Buffer I/O error on dev nvme0n1p2, logical block 25584, async page read


-- System Information:
Debian Release: bullseye/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 5.7.0-2-amd64 (SMP w/4 CPU threads)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages linux-image-5.9.0-1-amd64 depends on:
ii  initramfs-tools [linux-initramfs-tool]  0.137
ii  kmod                                    27+20200310-2
ii  linux-base                              4.6

Versions of packages linux-image-5.9.0-1-amd64 recommends:
ii  apparmor             2.13.4-3
ii  firmware-linux-free  20200122-1

Versions of packages linux-image-5.9.0-1-amd64 suggests:
pn  debian-kernel-handbook  <none>
ii  grub-efi-amd64          2.04-8
pn  linux-doc-5.9           <none>