Free swap  = 0kB
Total swap = 0kB
1965979 pages RAM
0 pages HighMem/MovableOnly
349900 pages reserved
0 pages cma reserved
Out of memory and no killable processes...
Kernel panic - not syncing: System is deadlocked on memory
CPU: 0 PID: 6496 Comm: rs:main Q:Reg Not tainted 5.8.0-rc4-next-20200710-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x18f/0x20d lib/dump_stack.c:118
 panic+0x2e3/0x75c kernel/panic.c:231
 out_of_memory mm/oom_kill.c:1106 [inline]
 out_of_memory.cold+0xa6/0x182 mm/oom_kill.c:1041
 __alloc_pages_may_oom mm/page_alloc.c:3985 [inline]
 __alloc_pages_slowpath mm/page_alloc.c:4718 [inline]
 __alloc_pages_nodemask+0x24a5/0x2a20 mm/page_alloc.c:4891
 alloc_pages_current+0x187/0x280 mm/mempolicy.c:2292
 alloc_pages include/linux/gfp.h:545 [inline]
 __page_cache_alloc mm/filemap.c:957 [inline]
 __page_cache_alloc+0x31e/0x450 mm/filemap.c:942
 pagecache_get_page+0x2a6/0xf70 mm/filemap.c:1667
 grab_cache_page_write_begin+0x64/0x90 mm/filemap.c:3310
 ext4_da_write_begin+0x35c/0x11d0 fs/ext4/inode.c:2966
 generic_perform_write+0x20a/0x4f0 mm/filemap.c:3360
 ext4_buffered_write_iter+0x235/0x4a0 fs/ext4/file.c:274
 ext4_file_write_iter+0x1f3/0x1490 fs/ext4/file.c:662
 call_write_iter include/linux/fs.h:1879 [inline]
 new_sync_write+0x422/0x650 fs/read_write.c:515
 vfs_write+0x59d/0x6b0 fs/read_write.c:595
 ksys_write+0x12d/0x250 fs/read_write.c:648
 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:384
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f40a14eb1cd
Code: Bad RIP value.
RSP: 002b:00007f409eaa6590 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f4094028520 RCX: 00007f40a14eb1cd
RDX: 00000000000002da RSI: 00007f4094028520 RDI: 000000000000000a
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 00007f40940282a0
R13: 00007f409eaa65b0 R14: 0000561e6908e7c0 R15: 00000000000002da
Kernel Offset: disabled
Rebooting in 86400 seconds..