syzbot


panic: pmap_growkernel: no memory to grow kernel

Status: auto-closed as invalid on 2019/10/25 08:52
Reported-by: syzbot+3ce299f73d5bbb5377ad@syzkaller.appspotmail.com
First crash: 1814d, last: 1794d
Similar bugs (2)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
freebsd panic: pmap_growkernel: no memory to grow kernel (3) 961 15d 912d 0/2 upstream: reported on 2021/10/20 13:12
freebsd panic: pmap_growkernel: no memory to grow kernel (2) syz 299 991d 1451d 2/2 fixed on 2021/08/05 17:22

Sample crash report:
panic: pmap_growkernel: no memory to grow kernel
cpuid = 0
time = 460
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe0030a77260
vpanic() at vpanic+0x1e0/frame 0xfffffe0030a772c0
panic() at panic+0x43/frame 0xfffffe0030a77320
pmap_growkernel() at pmap_growkernel+0x4b6/frame 0xfffffe0030a77360
vm_map_insert() at vm_map_insert+0x3a2/frame 0xfffffe0030a77420
vm_map_find() at vm_map_find+0x9e1/frame 0xfffffe0030a77510
kva_import() at kva_import+0x5f/frame 0xfffffe0030a77560
vmem_xalloc() at vmem_xalloc+0x711/frame 0xfffffe0030a77650
vmem_alloc() at vmem_alloc+0xe3/frame 0xfffffe0030a776b0
kva_alloc() at kva_alloc+0x37/frame 0xfffffe0030a776e0
vm_thread_new() at vm_thread_new+0x132/frame 0xfffffe0030a77830
thread_alloc() at thread_alloc+0x4f/frame 0xfffffe0030a77860
fork1() at fork1+0x402/frame 0xfffffe0030a77920
sys_pdfork() at sys_pdfork+0x62/frame 0xfffffe0030a77980
amd64_syscall() at amd64_syscall+0x436/frame 0xfffffe0030a77ab0
fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe0030a77ab0
--- syscall (518, FreeBSD ELF64, sys_pdfork), rip = 0x20000205, rsp = 0x7fffdfffdeb8, rbp = 0xa ---
KDB: enter: panic
[ thread pid 9946 tid 104597 ]
Stopped at      kdb_enter+0x6a: movq    $0,kdb_why

Crashes (4):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2019/05/23 00:52 freebsd e2abb7b27ea6 40046286 console log report ci-freebsd-main
2019/05/18 23:02 freebsd e2abb7b27ea6 40046286 console log report ci-freebsd-main
2019/05/09 08:38 freebsd c150a0f6fab9 1ab4c999 console log report ci-freebsd-main
2019/05/02 07:02 freebsd 62dd3c74c047 1852eb18 console log report ci-freebsd-main
* Struck through repros no longer work on HEAD.