Package: src:linux
Version: 5.10.28-1
Severity: normal
X-Debbugs-Cc: rincebr...@gmail.com
Dear Maintainer,
(This might also affect upstream, I haven't built a vanilla kernel to
experiment.)
On my (qemu-provided) alpha system, attempting to boot with the SMP kernel
yields the following message during boot:
[ 17.538076] Unable to handle kernel paging request at virtual address
0000000000000000
[ 17.539053] CPU 3
[ 17.539053] kworker/3:1(39): Oops -1
[ 17.539053] pc = [<0000000000000000>] ra = [<0000000000000000>] ps = 0000
Tainted: G E
[ 17.539053] pc is at 0x0
[ 17.541983] ra is at 0x0
[ 17.542959] v0 = 0000000000000007 t0 = fffffc00026b8fc0 t1 =
0000000000000000
[ 17.542959] t2 = 0000000000000002 t3 = 0000000000000000 t4 =
000000000000644e
[ 17.543936] t5 = 0000000000004000 t6 = 0000000000000001 t7 =
fffffc0004aac000
[ 17.544912] s0 = fffffc00026b8fc0 s1 = fffffc00026b8fc0 s2 =
fffffc0002731290
[ 17.544912] s3 = fffffc0002731290 s4 = fffffc0002741290 s5 =
fffffc00026b9178
[ 17.545889] s6 = fffffc00010c9b80
[ 17.545889] a0 = 0000000000000000 a1 = 0000000000000000 a2 =
0000000000000040
[ 17.546866] a3 = 0000000000000040 a4 = 0000000000000000 a5 =
0000000000000000
[ 17.548819] t8 = 0000000000000001 t9 = 00000000014bbcf4 t10=
000000000a546000
[ 17.548819] t11= 000000000000b938 pv = fffffc000193c640 at =
0000000000000001
[ 17.550772] gp = fffffc0002721290 sp = 000000009468c7b6
[ 17.550772] Disabling lock debugging due to kernel taint
[ 17.550772] Trace:
[ 17.551748] [<fffffc00010cc330>] wait_rcu_exp_gp+0x20/0x50
[ 17.551748] [<fffffc000105958c>] process_one_work+0x20c/0x520
[ 17.552725] [<fffffc0001059930>] worker_thread+0x90/0x770
[ 17.552725] [<fffffc00010633d4>] kthread+0x1c4/0x1e0
[ 17.553701] [<fffffc00010598a0>] worker_thread+0x0/0x770
[ 17.553701] [<fffffc0001011848>] ret_from_kernel_thread+0x18/0x20
[ 17.554678] [<fffffc0001063210>] kthread+0x0/0x1e0
[ 17.555655]
[ 17.555655] Code:
[ 17.555655] 00000000
[ 17.555655] 00000000
[ 17.556631] 00063301
[ 17.556631] 000013d5
[ 17.556631] 00001111
[ 17.556631] 000052a3
[ 17.556631]
which is not especially informative. I _suspect_ this may be somewhere in
the network stack, because the boot process shortly thereafter blocks
indefinitely on systemd-timesyncd starting...
Since it could conceivably be relevant, my qemu command line for spawning
this VM is:
qemu-system-alpha -m 4096 -vnc :12 -net nic,model=virtio-net-pci -net
user,hostfwd=tcp::20000-:22 -drive file=alpha,format=raw -smp 4 -kernel
vmlinux-5.10.0-6-alpha-generic -initrd initrd.img-5.10.0-6-alpha-generic
-append console=ttyS0 root=UUID=f5487547-65eb-4330-8644-39e494b5d972 -nographic
(with s/-generic/-smp/g for when it breaks)
(I also have tried nic,model=e1000 and nic,model=ne2k_pci, it does not
change the printout.)
The qemu version is qemu-system misc 5.2+dfsg-9~bpo10+1 from
buster-backports, on an x86_64 buster host.
-- Package-specific info:
** Kernel log: boot messages should be attached
** Model information
system type : Tsunami
system variation : Clipper
system revision : 0
platform string : N/A
** Network interface configuration:
*** /etc/network/interfaces:
source /etc/network/interfaces.d/*
auto lo
iface lo inet loopback
allow-hotplug enp0s1
iface enp0s1 inet dhcp
** PCI devices:
00:00.0 VGA compatible controller [0300]: Cirrus Logic GD 5446 [1013:00b8]
(prog-if 00 [VGA controller])
Subsystem: Red Hat, Inc. QEMU Virtual Machine [1af4:1100]
Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Region 0: Memory at 0a000000 (32-bit, prefetchable) [size=32M]
Region 1: Memory at 09054000 (32-bit, non-prefetchable) [size=4K]
Expansion ROM at 09040000 [virtual] [disabled] [size=64K]
Kernel driver in use: cirrus
Kernel modules: cirrusfb, cirrus
00:01.0 Ethernet controller [0200]: Red Hat, Inc. Virtio network device
[1af4:1000]
Subsystem: Red Hat, Inc. Virtio network device [1af4:0001]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 24
Region 0: I/O ports at 8000 [size=32]
Region 4: Memory at 09050000 (64-bit, prefetchable) [size=16K]
Expansion ROM at 09000000 [virtual] [disabled] [size=256K]
Capabilities: <access denied>
Kernel driver in use: virtio-pci
Kernel modules: virtio_pci
00:02.0 IDE interface [0101]: Silicon Image, Inc. PCI0646 [1095:0646] (rev 07)
(prog-if 8f [PCI native mode controller, supports both channels switched to ISA
compatibility mode, supports bus mastering])
Subsystem: Red Hat, Inc. PCI0646 [1af4:1100]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 28
Region 0: I/O ports at 8030 [size=8]
Region 1: I/O ports at 8040 [size=4]
Region 2: I/O ports at 8038 [size=8]
Region 3: I/O ports at 8044 [size=4]
Region 4: I/O ports at 8020 [size=16]
Kernel driver in use: pata_cmd64x
Kernel modules: pata_cmd64x, ata_generic
** USB devices:
not available
-- System Information:
Debian Release: 11.0
APT prefers unreleased
APT policy: (500, 'unreleased'), (500, 'unstable'), (1, 'experimental')
Architecture: alpha
Kernel: Linux 5.10.0-6-alpha-generic
Kernel taint flags: 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-5.10.0-6-alpha-smp depends on:
ii initramfs-tools [linux-initramfs-tool] 0.140
ii kmod 28-1
ii linux-base 4.6
Versions of packages linux-image-5.10.0-6-alpha-smp recommends:
ii apparmor 2.13.6-10
ii firmware-linux-free 20200122-1
Versions of packages linux-image-5.10.0-6-alpha-smp suggests:
ii aboot 1.0~pre20200212-1
pn debian-kernel-handbook <none>
pn fdutils <none>
pn linux-doc-5.10 <none>
Versions of packages linux-image-5.10.0-6-alpha-smp is related to:
pn firmware-amd-graphics <none>
pn firmware-atheros <none>
pn firmware-bnx2 <none>
pn firmware-bnx2x <none>
pn firmware-brcm80211 <none>
pn firmware-cavium <none>
pn firmware-intel-sound <none>
pn firmware-intelwimax <none>
pn firmware-ipw2x00 <none>
pn firmware-ivtv <none>
pn firmware-iwlwifi <none>
pn firmware-libertas <none>
pn firmware-linux-nonfree <none>
pn firmware-misc-nonfree <none>
pn firmware-myricom <none>
pn firmware-netxen <none>
pn firmware-qlogic <none>
pn firmware-realtek <none>
pn firmware-samsung <none>
pn firmware-siano <none>
pn firmware-ti-connectivity <none>
pn xen-hypervisor <none>
-- no debconf information
