syzbot


upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)

Status: fixed on 2021/11/10 00:50
Subsystems: kernel
[Documentation on labels]
Reported-by: syzbot+86ab74ebbf8800b62803@syzkaller.appspotmail.com
Fix commit: c43ddbf97f46 scsi: virtio_scsi: Do not overwrite SCSI status
First crash: 1078d, last: 1070d
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0) 1 (2) 2021/07/06 14:47

Sample crash report:
netconsole: network logging started
gtp: GTP module loaded (pdp ctx size 104 bytes)
rdma_rxe: loaded
cfg80211: Loading compiled-in X.509 certificates for regulatory database
cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
ALSA device list:
  #0: Dummy 1
  #1: Loopback 1
  #2: Virtual MIDI Card 1
md: Waiting for all devices to be available before autodetect
md: If you don't use raid, use raid=noautodetect
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
VFS: Cannot open root device "sda1" or unknown-block(0,0): error -6
Please append a correct "root=" boot option; here are the available partitions:
0100            4096 ram0 
 (driver?)
0101            4096 ram1 
 (driver?)
0102            4096 ram2 
 (driver?)
0103            4096 ram3 
 (driver?)
0104            4096 ram4 
 (driver?)
0105            4096 ram5 
 (driver?)
0106            4096 ram6 
 (driver?)
0107            4096 ram7 
 (driver?)
0108            4096 ram8 
 (driver?)
0109            4096 ram9 
 (driver?)
010a            4096 ram10 
 (driver?)
010b            4096 ram11 
 (driver?)
010c            4096 ram12 
 (driver?)
010d            4096 ram13 
 (driver?)
010e            4096 ram14 
 (driver?)
010f            4096 ram15 
 (driver?)
1f00             128 mtdblock0 
 (driver?)
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
CPU: 1 PID: 1 Comm: swapper/0 Not tainted 5.13.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x6e/0x91 lib/dump_stack.c:105
 panic+0x192/0x4c7 kernel/panic.c:232
 mount_block_root+0x268/0x31a init/do_mounts.c:439
 mount_root+0x162/0x18d init/do_mounts.c:555
 prepare_namespace+0x1ff/0x234 init/do_mounts.c:607
 kernel_init_freeable+0x2c4/0x2d6 init/main.c:1606
 kernel_init+0x1a/0x1c0 init/main.c:1485
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (235):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/07/11 04:13 upstream de5540965853 8f5a7b8c .config console log report ci-upstream-gce-leak upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/11 03:02 upstream de5540965853 8f5a7b8c .config console log report ci-upstream-kasan-gce upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/10 23:59 upstream de5540965853 8f5a7b8c .config console log report ci2-upstream-kcsan-gce upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/10 22:40 upstream 1e16624d7b43 8f5a7b8c .config console log report ci-upstream-kasan-gce-smack-root upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/10 22:21 upstream 1e16624d7b43 8f5a7b8c .config console log report ci-upstream-kasan-gce upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/10 21:14 upstream 1e16624d7b43 8f5a7b8c .config console log report ci-upstream-kasan-gce-selinux-root upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/10 20:00 upstream af4cf6a5689a 8f5a7b8c .config console log report ci-upstream-gce-leak upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/10 19:12 upstream 81361b837a34 8f5a7b8c .config console log report ci2-upstream-kcsan-gce upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/10 18:01 upstream af4cf6a5689a 8f5a7b8c .config console log report ci2-upstream-kcsan-gce upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/10 00:18 upstream 50be9417e23a 8f5a7b8c .config console log report ci-upstream-gce-leak upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/09 22:06 upstream 50be9417e23a 281e815f .config console log report ci-upstream-kasan-gce upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/09 20:54 upstream 9b76d71fa8be 281e815f .config console log report ci-upstream-kasan-gce-selinux-root upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/09 19:48 upstream 50be9417e23a 281e815f .config console log report ci2-upstream-kcsan-gce upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/09 19:48 upstream 50be9417e23a 281e815f .config console log report ci2-upstream-kcsan-gce upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/09 17:58 upstream 9b76d71fa8be 281e815f .config console log report ci2-upstream-kcsan-gce upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/09 09:37 upstream f55966571d5e 281e815f .config console log report ci-upstream-kasan-gce-smack-root upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/09 08:24 upstream f55966571d5e 281e815f .config console log report ci2-upstream-kcsan-gce upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/08 21:41 upstream f55966571d5e 1b20171a .config console log report ci-upstream-kasan-gce upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/08 21:24 upstream f55966571d5e 1b20171a .config console log report ci-upstream-kasan-gce-smack-root upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/08 20:06 upstream f55966571d5e 1b20171a .config console log report ci2-upstream-kcsan-gce upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/08 16:50 upstream e9f1cbc0c411 1b20171a .config console log report ci-upstream-kasan-gce upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/08 06:48 upstream e9f1cbc0c411 1aade754 .config console log report ci2-upstream-kcsan-gce upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/08 02:50 upstream e9f1cbc0c411 95793bce .config console log report ci-upstream-gce-leak upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/08 01:43 upstream e9f1cbc0c411 95793bce .config console log report ci-upstream-kasan-gce-smack-root upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/08 00:26 upstream a931dd33d370 4846d5c1 .config console log report ci-upstream-kasan-gce-smack-root upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/07 21:01 upstream e9f1cbc0c411 95793bce .config console log report ci2-upstream-kcsan-gce upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/07 19:50 upstream a931dd33d370 95793bce .config console log report ci2-upstream-kcsan-gce upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/07 18:46 upstream 77d34a4683b0 95793bce .config console log report ci2-upstream-kcsan-gce upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/07 18:46 upstream 77d34a4683b0 95793bce .config console log report ci2-upstream-kcsan-gce upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/07 07:36 upstream 77d34a4683b0 4846d5c1 .config console log report ci-upstream-kasan-gce upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/07 06:26 upstream 77d34a4683b0 4846d5c1 .config console log report ci2-upstream-kcsan-gce upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/06 23:16 upstream 77d34a4683b0 cca78469 .config console log report ci-upstream-kasan-gce-root upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/06 22:04 upstream 77d34a4683b0 cca78469 .config console log report ci-upstream-gce-leak upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/06 18:50 upstream 79160a603bdb cca78469 .config console log report ci-upstream-gce-leak upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/06 18:31 upstream 79160a603bdb cca78469 .config console log report ci2-upstream-kcsan-gce upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/06 18:31 upstream 79160a603bdb cca78469 .config console log report ci2-upstream-kcsan-gce upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/06 18:31 upstream 79160a603bdb cca78469 .config console log report ci2-upstream-kcsan-gce upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/06 10:33 upstream 79160a603bdb 6c4484eb .config console log report ci-upstream-gce-leak upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/06 10:33 upstream 79160a603bdb 6c4484eb .config console log report ci-upstream-gce-leak upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/06 10:33 upstream 79160a603bdb 6c4484eb .config console log report ci-upstream-gce-leak upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/06 10:18 upstream 79160a603bdb 6c4484eb .config console log report ci-upstream-kasan-gce-selinux-root upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/06 10:01 upstream 79160a603bdb 6c4484eb .config console log report ci-upstream-kasan-gce upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/06 10:01 upstream 79160a603bdb 6c4484eb .config console log report ci-upstream-kasan-gce upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/06 10:01 upstream 79160a603bdb 6c4484eb .config console log report ci-upstream-kasan-gce upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/06 09:43 upstream 79160a603bdb 6c4484eb .config console log report ci-upstream-kasan-gce-smack-root upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/06 09:43 upstream 79160a603bdb 6c4484eb .config console log report ci-upstream-kasan-gce-smack-root upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/03 07:18 upstream 4b820e167bf6 55aa55c2 .config console log report ci2-upstream-kcsan-gce upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/09 23:10 upstream 50be9417e23a 8f5a7b8c .config console log report ci-upstream-kasan-gce-386 upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/08 18:00 upstream e9f1cbc0c411 1b20171a .config console log report ci-upstream-kasan-gce-386 upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/07 23:15 upstream a931dd33d370 4846d5c1 .config console log report ci-upstream-kasan-gce-386 upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/06 23:33 upstream 77d34a4683b0 cca78469 .config console log report ci-upstream-kasan-gce-386 upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
2021/07/06 19:55 upstream 79160a603bdb cca78469 .config console log report ci-upstream-kasan-gce-386 upstream boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
* Struck through repros no longer work on HEAD.