Hello RUI Zhengxin,
On 07/01/2021 04:43, RUI Zhengxin wrote:
Hi all,
We find "swi6: Giant task queue" suspend if removing SD Card.
libbsd5.1 is running at beagle bone hardware, the sdhci driver is
attached success.
*sdhci_ti0: <TI MMCHS (SDHCI 2.0)> mem 0x4809c000-0x4809c3ff irq 78,4 on
simplebus0*
*mmc0: <MMC/SD bus> on sdhci_ti0*
The console show the message when removing sd card
*emerg: mmcsd_detach: FIXME*
Like the message suggests: Removing SD cards is currently not
implemented. The part of the subsystem is just removed and replaced by a
BSD_PANIC("FIXME"). It's a bit back since I last touched that subsystem
but if I remember correctly, it would be quite a bit of work to add that
support.
Best regards
Christian
the task state is show by task command
SHLL [/] # task
ID NAME SHED PRI STATE MODES EVENTS WAITINFO
------------------------------------------------------------------------------
0a010002 BSWP UPD 250 EV P:T:nA NONE
0a010003 BRDA UPD 15 EV P:T:nA NONE
0a010004 MDIA UPD 200 EV P:T:nA NONE
0a010005 TIME UPD 8 MTX P:T:nA NONE Giant
0a010006 IRQS UPD 6 SYSEV P:T:nA NONE
0a010007 _BSD swi6: task queu UPD 10 EV P:T:nA NONE
0a010008 _BSD swi5: fast task UPD 10 EV P:T:nA NONE
0a010009 _BSD config_0 UPD 10 WK P:T:nA NONE -
0a01000a _BSD thread taskq UPD 10 WK P:T:nA NONE -
0a01000b _BSD swi6: Giant tas UPD 8 *SUSP* P:T:nA NONE
In this case, if we excute the ifconfig command, the shell is hang.
SHLL [/] #
SHLL [/] # ifconfig
We log the board by telnet, the task state is:
TLNT [/] # task
ID NAME SHED PRI STATE MODES EVENTS WAITINFO
------------------------------------------------------------------------------
0a010002 BSWP UPD 250 EV P:T:nA NONE
0a010003 BRDA UPD 15 EV P:T:nA NONE
0a010004 MDIA UPD 200 EV P:T:nA NONE
0a010005 TIME UPD 8 MTX P:T:nA NONE Giant
0a010006 IRQS UPD 6 SYSEV P:T:nA NONE
0a010007 _BSD swi6: task queu UPD 10 EV P:T:nA NONE
0a010008 _BSD swi5: fast task UPD 10 EV P:T:nA NONE
0a010009 _BSD config_0 UPD 10 WK P:T:nA NONE -
0a01000a _BSD thread taskq UPD 10 WK P:T:nA NONE -
0a01000b _BSD swi6: Giant tas UPD 3 *SUSP* P:T:nA NONE
0a01000c _BSD kqueue_ctx task UPD 10 WK P:T:nA NONE -
0a01000d _BSD swi1: netisr 0 UPD 10 EV P:T:nA NONE
0a01000e SCRx UPD 10 MSG P:T:nA NONE 22010001
0a01000f SCRx UPD 10 MSG P:T:nA NONE 22010002
0a010010 _BSD softirq_0 UPD 10 WK P:T:nA NONE -
0a010011 SHLL UPD 3 *MTX* P:T:nA NONE Giant
SHLL is hang for mutex is owned by swi6: task queu
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