https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=251803
Bug ID: 251803
Summary: rctl -a user:test:readiops:throttle=0/user crash the
system
Product: Base System
Version: 12.2-RELEASE
Hardware: amd64
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: b...@freebsd.org
Reporter: ch...@cretaforce.gr
When I run:
rctl -a user:test:readiops:throttle=0/user
the system crash:
Fatal trap 18: integer divide fault while in kernel mode
cpuid = 4; apic id = 04
instruction pointer = 0x20:0xffffffff80bb2fb7
stack pointer = 0x28:0xfffffe00c5b42200
frame pointer = 0x28:0xfffffe00c5b422a0
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 53057 (bash)
trap number = 18
panic: integer divide fault
cpuid = 4
time = 1607862919
KDB: stack backtrace:
#0 0xffffffff80c0a8f5 at kdb_backtrace+0x65
#1 0xffffffff80bbeb1b at vpanic+0x17b
#2 0xffffffff80bbe993 at panic+0x43
#3 0xffffffff8108f911 at trap_fatal+0x391
#4 0xffffffff8108ed97 at trap+0x67
#5 0xffffffff81066f38 at calltrap+0x8
#6 0xffffffff80bb03df at racct_add_buf+0x26f
#7 0xffffffff80c6c0ea at breadn_flags+0xda
#8 0xffffffff80c70a5f at vfs_bio_getpages+0x33f
#9 0xffffffff80ed01a7 at ffs_getpages+0x77
#10 0xffffffff8124911b at VOP_GETPAGES_APV+0x7b
#11 0xffffffff80f1c932 at vnode_pager_getpages+0x72
#12 0xffffffff80f13382 at vm_pager_get_pages+0x22
#13 0xffffffff80b78018 at exec_map_first_page+0x2a8
#14 0xffffffff80b76965 at kern_execve+0x2c5
#15 0xffffffff80b7635c at sys_execve+0x4c
#16 0xffffffff810904c7 at amd64_syscall+0x387
#17 0xffffffff8106785e at fast_syscall_common+0xf8
Uptime: 3m41s
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