radek-pesina opened a new issue, #9046:
URL: https://github.com/apache/nuttx/issues/9046
Hi,
I'm encountering an issue on both our target HW and also reproducible in
QEMU build where after a handful of echo writes to file an assert fails. If
assertions are turned off then typically a page fault is encountered.
On-target I encountered this when performing echo to file on a SD/eMMC card
running littlefs, then found it occurs even when writing to null, including in
an emulated environment, suggesting there is a more fundamental problem at hand
not related to the SD/eMMC driver or LittleFS filesystem.
* Nuttx GIT version: f4683713327aaeab0656e3ea83814b44267bdc4a
* Built with commands:
$ make distclean -j16
$ ./tools/configure.sh rv-virt:knsh32
$ make -j16
$ make export -j16
$ make import -j16
* Executed with command:
$ qemu-system-riscv64 -semihosting -M virt,aclint=on -cpu rv64 -smp 8
-bios none -kernel nuttx -nographic -serial mon:stdio
Terminal output (NOTE: the number of echo's required varies - depending on
build configuration it can take around 100 or as little as a dozen):
```
nsh> echo "Testing1234567890abcdefghijklmnopqrstuvwxyz0987654321" > /dev/null
nsh> echo "Testing1234567890abcdefghijklmnopqrstuvwxyz0987654321" > /dev/null
nsh> echo "Testing1234567890abcdefghijklmnopqrstuvwxyz0987654321" > /dev/null
nsh> echo "Testing1234567890abcdefghijklmnopqrstuvwxyz0987654321" > /dev/null
nsh> echo "Testing1234567890abcdefghijklmnopqrstuvwxyz0987654321" > /dev/null
nsh> echo "Testing1234567890abcdefghijklmnopqrstuvwxyz0987654321" > /dev/null
nsh> echo "Testing1234567890abcdefghijklmnopqrstuvwxyz0987654321" > /dev/null
nsh> echo "Testing1234567890abcdefghijklmnopqrstuvwxyz0987654321" > /dev/null
nsh> echo "Testing1234567890abcdefghijklmnopqrstuvwxyz0987654321" > /dev/null
nsh> echo "Testing1234567890abcdefghijklmnopqrstuvwxyz0987654321" > /dev/null
nsh> echo "Testing1234567890abcdefghijklmnopqrstuvwxyz0987654321" > /dev/null
nsh> echo "Testing1234567890abcdefghijklmnopqrstuvwxyz0987654321" > /dev/null
[ 11.056000] _assert: Current Version: NuttX 10.2.0 c637c2c85c Apr 20
2023 10:31:24 risc-v
[ 11.063000] _assert: Assertion failed : at file: mm_heap/mm_free.c:136
task: nxposix_spawn_proxy 0x800141b8
[ 11.070000] up_dump_register: EPC: 0000000080015ff2
[ 11.074000] up_dump_register: A0: 0000000000000000 A1: 0000000080201600
A2: 0000000010000000 A3: 0000000080019748
[ 11.077000] up_dump_register: A4: 000000000000000a A5: 0000000000000000
A6: 0000000000000009 A7: 000000000000006c
[ 11.079000] up_dump_register: T0: 000000000000002d T1: 0000000000000068
T2: 0000000000000030 T3: 0000000000000009
[ 11.082000] up_dump_register: T4: 000000000000002a T5: 000000000000002e
T6: 00000000000001ff
[ 11.085000] up_dump_register: S0: 0000000080209950 S1: 0000000000000001
S2: 0000000080201758 S3: 0000000080019a08
[ 11.088000] up_dump_register: S4: 0000000080017c68 S5: 0000000000000088
S6: 0000000000000000 S7: 0000000000000000
[ 11.092000] up_dump_register: S8: 0000000000000000 S9: 0000000000000000
S10: 0000000000000000 S11: 0000000000000000
[ 11.095000] up_dump_register: SP: 000000008020c200 FP: 0000000080209950
TP: 0000000000000000 RA: 0000000080015ff2
[ 11.098000] dump_stack: IRQ Stack:
[ 11.099000] dump_stack: sp: 0x8020c210
[ 11.100000] dump_stack: base: 0x80200270
[ 11.101000] dump_stack: size: 00002048
[ 11.102000] dump_stack: ERROR: IRQ Stack pointer is not within the stack
[ 11.104000] dump_stack: User Stack:
[ 11.105000] dump_stack: sp: 0x8020c210
[ 11.106000] dump_stack: base: 0x8020c060
[ 11.107000] dump_stack: size: 00000928
[ 11.108000] stack_dump: 0x8020c200: 80209950 00000000 800116a2 00000000
80206c00 00000000 80006ac4 00000000
[ 11.111000] stack_dump: 0x8020c220: 000003a0 00000000 8020c060 00000000
80209f68 00000000 7474754e 00000058
[ 11.114000] stack_dump: 0x8020c240: 80209f68 00000000 8001535c 00000000
80206c00 00000000 00000000 00000000
[ 11.116000] stack_dump: 0x8020c260: 000041ff 00000000 00000000 2e303100
00302e32 00000000 fffffffc ffffffff
[ 11.119000] stack_dump: 0x8020c280: 3663ff83 32633733 63353863 72704120
20303220 33323032 3a303120 323a3133
[ 11.121000] stack_dump: 0x8020c2a0: c0200034 00000000 8020a810 00000000
80206c00 73697200 00762d63 00000000
[ 11.124000] stack_dump: 0x8020c2c0: c02029b8 00000000 fffffffc ffffffff
ffffff83 ffffffff c0200530 00000000
[ 11.126000] stack_dump: 0x8020c2e0: c02029b8 00000000 c0200888 00000000
c0202918 00000000 80206c00 00000000
[ 11.128000] stack_dump: 0x8020c300: 8020a810 00000000 8000697c 00000000
8020a810 00000000 800083ce 00000000
[ 11.129000] stack_dump: 0x8020c320: c0202918 00000000 fffffffe ffffffff
8020a810 00000000 80010148 00000000
[ 11.131000] stack_dump: 0x8020c340: 00000000 00000000 00000000 00000000
80209f08 00000000 00000000 00000000
[ 11.133000] stack_dump: 0x8020c360: 00000000 00000000 c02029b8 00000000
c0202908 00000000 c0200888 00000000
[ 11.135000] stack_dump: 0x8020c380: c0202918 00000000 8001418a 00000000
00000003 00000000 c0200530 00000000
[ 11.138000] stack_dump: 0x8020c3a0: 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000
[ 11.141000] stack_dump: 0x8020c3c0: 00000000 00000000 00000000 00000000
80201708 00000000 800141fe 00000000
[ 11.143000] stack_dump: 0x8020c3e0: 00000000 00000000 80003b44 00000000
00000000 00000000 00000000 00000000
[ 11.145000] dump_stack: Kernel Stack:
[ 11.146000] dump_stack: sp: 0x8020c210
[ 11.147000] dump_stack: base: 0
[ 11.147000] dump_stack: size: 00003072
[ 11.148000] dump_stack: ERROR: Kernel Stack pointer is not within the
stack
[ 11.150000] show_tasks: PID GROUP PRI POLICY TYPE NPX STATE
EVENT SIGMASK STACKBASE STACKSIZE USED FILLED COMMAND
[ 11.153000] show_tasks: ---- --- --- -------- ------- --- -------
---------- -------- 0x80200270 2048 2040 99.6%! irq
[ 11.156000] dump_task: 0 0 0 FIFO Kthread N-- Ready
0000000000000000 0x80206030 3024 1504 49.7% Idle Task
[ 11.156000] dump_task: 1 1 100 RR Kthread --- Waiting
Semaphore 0000000000000000 0x8020a060 1952 408 20.9% lpwork
0x80201388
[ 11.156000] dump_task: 2 2 100 RR Task --- Waiting
Semaphore 0000000000000000 0xc0202060 2976 1560 52.4%
/system/bin/init
[ 11.156000] dump_task: 47 47 100 RR Kthread --- Running
0000000000000000 0x8020c060 928 928 100.0%!
nxposix_spawn_proxy �o �
```
Any ideas? Please let me know if you require any further information.
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