Re: kern/51395: USB Ethernet makes xhci hang

[Takahiro Hayashi <t425hash%gmail.com@localhost>]

The following reply was made to PR kern/51395; it has been noted by GNATS.

From: Takahiro Hayashi <t425hash%gmail.com@localhost>
To: gnats-bugs%NetBSD.org@localhost, kern-bug-people%netbsd.org@localhost,
 gnats-admin%netbsd.org@localhost, netbsd-bugs%netbsd.org@localhost
Cc: 
Subject: Re: kern/51395: USB Ethernet makes xhci hang
Date: Wed, 10 Aug 2016 20:11:20 +0900

 This problem also happens on ehci of my DN2820FYKH.
 
 # dhcpcd axe0
 axe0: adding address fe80::2xx:xxff:fexx:xxxx
 ehci_sync_hc: cv_timedwait() = 35
 ~fatal breakpoint trap in supervisor mode
 trap type 1 code 0 rip ffffffff80114b35 cs 8 rflags 202 cr2 7a1772596240 ilevel 8 rsp fffffe810e673ce8
 curlwp 0xfffffe823f729840 pid 0.2 lowest kstack 0xfffffe810e6702c0
 Stopped in pid 0.2 (system) at  netbsd:breakpoint+0x5:  leave
 db{0}> ps
 PID    LID S CPU     FLAGS       STRUCT LWP *               NAME WAIT
 13       1 3   0         0   fffffe810e9ea980             dhcpcd usbxfer
 2        1 3   0        80   fffffe810e9ea560                 sh wait
 1        1 3   0        80   fffffe810ea3f180               init wait
 0       48 3   1       200   fffffe810eae9a00           aiodoned aiodoned
 0       47 3   1       200   fffffe810eb071a0            ioflush syncer
 0       46 3   1       200   fffffe810eb075c0           pgdaemon pgdaemon
 0       45 5   1       200   fffffe810eb079e0           (zombie)
 0       42 3   1       200   fffffe810e9c9960               usb0 usbevt
 0       41 3   1       200   fffffe810ea3f5a0              unpgc unpgc
 0       40 3   1       200   fffffe810ea3f9c0          nd6_timer tstile
 0       39 3   0       200   fffffe810e9ea140           rt_timer rt_timer
 0       38 3   0       200   fffffe810e9eb9a0        vmem_rehash vmem_rehash
 0       37 3   0       200   fffffe810e9eb160          coretemp1 coretemp1
 0       36 3   1       200   fffffe810e9eb580          coretemp0 coretemp0
 0       27 3   1       200   fffffe810e929520               iic0 iicintr
 0       26 3   0       200   fffffe810e929940         usbtask-dr tstile
 0       25 3   0       200   fffffe810e6e30e0         usbtask-hc ehciab
 0       24 3   0       200   fffffe810e6e3500            atabus0 atath
 0       23 3   1       200   fffffe810e6e3920            xcall/1 xcall
 0       22 1   1       200   fffffe810e6c30c0          softser/1
 0       21 3   1       200   fffffe810e6c34e0          softclk/1 tstile
 0       20 1   1       200   fffffe810e6c3900          softbio/1
 0       19 1   1       200   fffffe823eaec0a0          softnet/1
 0    >  18 7   1       201   fffffe823eaec4c0             idle/1
 0       17 3   0       200   fffffe823eaec8e0           lnxsyswq lnxsyswq
 0       16 3   0       200   fffffe823eafe080             sysmon smtaskq
 0       15 3   0       200   fffffe823eafe4a0         pmfsuspend pmfsuspend
 0       14 3   0       200   fffffe823eafe8c0           pmfevent pmfevent
 0       13 3   0       200   fffffe823eb0e060         sopendfree sopendfr
 0       12 3   0       200   fffffe823eb0e480           nfssilly nfssilly
 0       11 3   0       200   fffffe823eb0e8a0            cachegc cachegc
 0       10 3   0       200   fffffe823f714040              vrele vrele
 0        9 3   1       200   fffffe823f714460             vdrain vdrain
 0        8 3   0       200   fffffe823f714880          modunload mod_unld
 0        7 3   0       200   fffffe823f723020            xcall/0 xcall
 0        6 1   0       200   fffffe823f723440          softser/0
 0        5 1   0       200   fffffe823f723860          softclk/0
 0        4 1   0       200   fffffe823f729000          softbio/0
 0        3 3   0       200   fffffe823f729420          softnet/0 tstile
 0    >   2 7   0       201   fffffe823f729840             idle/0
 0        1 3   0       200   ffffffff80abaee0            swapper uvm
 db{0}> ps/w
 PID   LID          COMMAND     EMUL  PRI WAIT-MSG    WAIT-CHANNEL
 13       1           dhcpcd   netbsd   43 usbxfer      fffffe810e9ee658
 2        1               sh   netbsd   43 wait         fffffe810ea94ab0
 1        1             init   netbsd   43 wait         fffffe810ea94d50
 0       48           system   netbsd  125 aiodoned     fffffe810ea1d948
 0       47           system   netbsd  124 syncer       fffffe810eb071a0
 0       46           system   netbsd  126 pgdaemon     ffffffff80fe9bb4
 0       45           system   netbsd   96              0
 0       42           system   netbsd   96 usbevt       fffffe810e93b490
 0       41           system   netbsd   96 unpgc        ffffffff8100bc60
 0       40           system   netbsd  222 tstile       fffffe823fbabf40
 0       39           system   netbsd  222 rt_timer     fffffe810ea1dd88
 0       38           system   netbsd  125 vmem_rehash  fffffe810ea1de88
 0       37           system   netbsd   43 coretemp1    fffffe823f71e088
 0       36           system   netbsd   43 coretemp0    fffffe823f71e148
 0       27           system   netbsd   96 iicintr      fffffe823f71e1f0
 0       26           system   netbsd   96 tstile       fffffe823d450e28
 0       25           system   netbsd   96 ehciab       fffffe810e93bde8
 0       24           system   netbsd   96 atath        ffff80000f7d3398
 0       23           system   netbsd  127 xcall        fffffe810e6b30d8
 0       22           system   netbsd  223              0
 0       21           system   netbsd  220 tstile       fffffe823fbabf40
 0       20           system   netbsd  221              0
 0       19           system   netbsd  222              0
 0    >  18           system   netbsd    0              0
 0       17           system   netbsd   43 lnxsyswq     fffffe823f71eb08
 0       16           system   netbsd   96 smtaskq      ffffffff80fd3d60
 0       15           system   netbsd   43 pmfsuspend   fffffe823f71ecc8
 0       14           system   netbsd   43 pmfevent     fffffe823f71ed88
 0       13           system   netbsd   96 sopendfr     ffffffff8100bbd0
 0       12           system   netbsd   43 nfssilly     fffffe823f71ee88
 0       11           system   netbsd  125 cachegc      fffffe823eb0e8a0
 0       10           system   netbsd  125 vrele        ffffffff80af50c0
 0        9           system   netbsd  125 vdrain       ffffffff80af5180
 0        8           system   netbsd  125 mod_unld     ffffffff80fee890
 0        7           system   netbsd  127 xcall        ffffffff80a834d8
 0        6           system   netbsd  223              0
 0        5           system   netbsd  220              0
 0        4           system   netbsd  221              0
 0        3           system   netbsd  222 tstile       fffffe823fbabf40
 0    >   2           system   netbsd    0              0
 0        1           system   netbsd  125 uvm          ffffffff80abaee0
 db{0}> bt/a fffffe810e9ea980
 trace: pid 13 lid 1 at 0xfffffe810ecea3f0
 sleepq_block() at netbsd:sleepq_block+0x97
 cv_wait() at netbsd:cv_wait+0x11a
 usbd_transfer() at netbsd:usbd_transfer+0x795
 usbd_do_request_flags() at netbsd:usbd_do_request_flags+0xd9
 axe_cmd() at netbsd:axe_cmd+0xa0
 axe_setmulti() at netbsd:axe_setmulti+0x76
 axe_ioctl() at netbsd:axe_ioctl+0x157
 if_mcast_op() at netbsd:if_mcast_op+0x6a
 in6_addmulti() at netbsd:in6_addmulti+0x2f8
 in6_joingroup() at netbsd:in6_joingroup+0x45
 in6_update_ifa1() at netbsd:in6_update_ifa1+0xa80
 in6_update_ifa() at netbsd:in6_update_ifa+0x3b
 in6_control1() at netbsd:in6_control1+0x4c5
 in6_control() at netbsd:in6_control+0x92
 udp6_ioctl_wrapper() at netbsd:udp6_ioctl_wrapper+0x32
 compat_ifioctl() at netbsd:compat_ifioctl+0x11c
 doifioctl() at netbsd:doifioctl+0xa9d
 soo_ioctl() at netbsd:soo_ioctl+0x2b5
 sys_ioctl() at netbsd:sys_ioctl+0x101
 syscall() at netbsd:syscall+0x9c
 --- syscall (number 54) ---
 7a17726e90fa:
 db{0}> bt/a fffffe810e6e30e0
 trace: pid 0 lid 25 at 0xfffffe810e930db0
 sleepq_block() at netbsd:sleepq_block+0x97
 cv_wait() at netbsd:cv_wait+0x11a
 ehci_abort_xfer() at netbsd:ehci_abort_xfer+0x506
 ehci_timeout_task() at netbsd:ehci_timeout_task+0x3e
 usb_task_thread() at netbsd:usb_task_thread+0x157
 db{0}> bt/a fffffe810e929940
 trace: pid 0 lid 26 at 0xfffffe810e93fcf0
 sleepq_block() at netbsd:sleepq_block+0x97
 turnstile_block() at netbsd:turnstile_block+0x3a9
 mutex_enter() at netbsd:mutex_enter+0x36c
 axe_miibus_readreg() at netbsd:axe_miibus_readreg+0x5b
 mii_phy_tick() at netbsd:mii_phy_tick+0x5e
 ukphy_service() at netbsd:ukphy_service+0x72
 mii_tick() at netbsd:mii_tick+0x3b
 axe_tick_task() at netbsd:axe_tick_task+0x31
 usb_task_thread() at netbsd:usb_task_thread+0x1a4
 
 
 
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