On 28.07.20 11:17, alessio margan via Xenomai wrote:
Hi all,
I got this , briefly
an UI_thread open 2 pipes : rd_xddp (block) wr_xddp (noblock)
an RT_thread (periodic producer) open 2 pipes both noblock but write
back to UI if something is read
at a period of 1 ms it works, at 500 us no
xeno-config --verbose
--core=cobalt
--version="3.1"
--cc="gcc"
--ccld="/usr/xenomai/bin/wrap-link.sh gcc"
--arch="x86"
--prefix="/usr/xenomai"
--library-dir="/usr/xenomai/lib"
[Xenomai] switching RT_thread to secondary mode after exception #14 in
kernel-space at 0xffffffffad130635 (pid 1151)
[ 280.564579] BUG: unable to handle kernel paging request at
ffff9abb6ad9b326
[ 280.564585] PGD 23c201067 P4D 23c201067 PUD 0
[ 280.564589] Oops: 0000 [#1] SMP PTI
[ 280.564593] CPU: 0 PID: 1151 Comm: RT_thread Not tainted
4.19.89-xeno-ipipe-3.1 #1
[ 280.564597] Hardware name: Default string Default string/SKYBAY, BIOS
5.11 01/29/2016
[ 280.564600] I-pipe domain: Linux
[ 280.564607] RIP: 0010:xnheap_free+0xd5/0x290
[ 280.564610] Code: 4d 89 e8 48 8b 13 41 83 e0 02 48 8b 75 c0 4c 8b 5b
18 48 29 d6 49 89 f1 49 c1 e9 09 49 63 c1 48 8d 3c 40 48 c1 e7 02 49 01
fb <41> 0f b7 43 06 66 c1 e8 07 83 e0 3f 3c 02 44 0f b6 d0 0f 84 f8 00
[ 280.564618] RSP: 0018:ffffb0f40275fb70 EFLAGS: 00010283
[ 280.564621] RAX: ffffffff85ff7998 RBX: ffffffffae0f2fc0 RCX:
ffffffffadb3b607
[ 280.564624] RDX: ffffb0f4010cd000 RSI: 00004f0bfef33000 RDI:
fffffffa47f9b320
[ 280.564628] RBP: ffffb0f40275fbb0 R08: 0000000000000000 R09:
0000002785ff7998
[ 280.564631] R10: 000000c5beb58919 R11: ffff9abb6ad9b320 R12:
000000000005f140
[ 280.564635] R13: 0000000000000000 R14: ffffffffae0f3028 R15:
0000000000000000
[ 280.564638] FS: 00007f6de79ef700(0000) GS:ffff9ac127400000(0000)
knlGS:0000000000000000
[ 280.564642] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 280.564646] CR2: ffff9abb6ad9b326 CR3: 0000000264e12005 CR4:
00000000003606f0
[ 280.564649] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[ 280.564653] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
0000000000000400
[ 280.564656] Call Trace:
[ 280.564664] __xddp_recvmsg+0x203/0x480
[ 280.564669] ? __switch_to_asm+0x41/0x70
[ 280.564672] ? __switch_to_asm+0x35/0x70
[ 280.564675] ? __switch_to_asm+0x41/0x70
[ 280.564678] ? __switch_to_asm+0x35/0x70
[ 280.564681] ? __switch_to_asm+0x41/0x70
[ 280.564684] ? __switch_to_asm+0x35/0x70
[ 280.564687] ? __switch_to_asm+0x41/0x70
[ 280.564690] ? __switch_to_asm+0x35/0x70
[ 280.564693] ? __switch_to_asm+0x41/0x70
[ 280.564696] ? __switch_to_asm+0x35/0x70
[ 280.564699] ? __switch_to_asm+0x41/0x70
[ 280.564702] ? __switch_to_asm+0x35/0x70
[ 280.564705] ? __switch_to_asm+0x41/0x70
[ 280.564708] ? __switch_to_asm+0x35/0x70
[ 280.564711] ? __switch_to_asm+0x41/0x70
[ 280.564714] xddp_recvmsg+0xc5/0x160
[ 280.564718] ? ___xnsched_run+0x27a/0x4a0
[ 280.564721] ? __switch_to_asm+0x41/0x70
[ 280.564725] ? xnthread_suspend+0x40a/0x570
[ 280.564728] ? __switch_to_asm+0x35/0x70
[ 280.564731] ? __switch_to_asm+0x41/0x70
[ 280.564734] ? __switch_to_asm+0x35/0x70
[ 280.564737] ? __switch_to_asm+0x41/0x70
[ 280.564742] ? __put_fd+0x262/0x2d0
[ 280.564745] ? ipipe_timer_set+0x5f/0x70
[ 280.564748] ? rtdm_fd_get+0x1bc/0x220
[ 280.564752] rtipc_recvmsg+0x11/0x20
[ 280.564755] rtdm_fd_recvmsg+0x6e/0xc0
[ 280.564759] CoBaLt_recvmsg+0x68/0xd0
[ 280.564761] ? CoBaLt_write+0x10/0x10
[ 280.564767] handle_head_syscall+0xe0/0x2f0
[ 280.564770] ipipe_fastcall_hook+0x13/0x20
[ 280.564773] ipipe_handle_syscall+0x4b/0xb0
[ 280.564777] do_syscall_64+0x2e/0x250
[ 280.564780] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 280.564783] RIP: 0033:0x7f6de79b2e71
[ 280.564786] Code: 89 f5 53 89 fb bf 01 00 00 00 48 83 ec 10 48 8d 74
24 0c e8 01 b3 ff ff b9 53 00 00 10 48 63 fb 49 63 d4 48 89 ee 89 c8 0f
05 <8b> 7c 24 0c 31 f6 48 89 c3 e8 e1 b2 ff ff 48 83 c4 10 48 63 c3 5b
[ 280.564794] RSP: 002b:00007f6de79eec30 EFLAGS: 00000206 ORIG_RAX:
0000000010000053
[ 280.564798] RAX: ffffffffffffffda RBX: 0000000000000004 RCX:
00007f6de79b2e71
[ 280.564801] RDX: 0000000000000040 RSI: 00007f6de79eec80 RDI:
0000000000000004
[ 280.564805] RBP: 00007f6de79eec80 R08: 0000000000000000 R09:
0000000000000000
[ 280.564808] R10: 00005587dae90c58 R11: 0000000000000206 R12:
0000000000000040
[ 280.564812] R13: 0000000000000004 R14: 00007f6de79eed1c R15:
0000000000000004
[ 280.564816] Modules linked in: ctr ccm rtpacket binfmt_misc arc4
iwldvm mac80211 iwlwifi i915 i2c_algo_bit ftdi_sio drm_kms_helper
usbserial cfbfillrect syscopyarea cfbimgblt sysfillrect sysimgblt
fb_sys_fops cfbcopyarea rt_e1000e fb x86_pkg_temp_thermal
intel_powerclamp font fbdev crc32c_intel rtnet drm cfg80211
drm_panel_orientation_quirks intel_pch_thermal evdev video button btusb
btrtl btbcm btintel bluetooth jitterentropy_rng hmac drbg ecdh_generic
nfsd auth_rpcgss nfs_acl lockd grace loop sunrpc autofs4 ahci e1000e
libahci ptp xhci_pci i2c_i801 pps_core xhci_hcd libata usbcore
usb_common fan
[ 280.564855] CR2: ffff9abb6ad9b326
[ 280.564858] ---[ end trace 73a21e5dbd797a64 ]---
[ 280.564863] RIP: 0010:xnheap_free+0xd5/0x290
[ 280.564866] Code: 4d 89 e8 48 8b 13 41 83 e0 02 48 8b 75 c0 4c 8b 5b
18 48 29 d6 49 89 f1 49 c1 e9 09 49 63 c1 48 8d 3c 40 48 c1 e7 02 49 01
fb <41> 0f b7 43 06 66 c1 e8 07 83 e0 3f 3c 02 44 0f b6 d0 0f 84 f8 00
[ 280.564873] RSP: 0018:ffffb0f40275fb70 EFLAGS: 00010283
[ 280.564877] RAX: ffffffff85ff7998 RBX: ffffffffae0f2fc0 RCX:
ffffffffadb3b607
[ 280.564880] RDX: ffffb0f4010cd000 RSI: 00004f0bfef33000 RDI:
fffffffa47f9b320
[ 280.564884] RBP: ffffb0f40275fbb0 R08: 0000000000000000 R09:
0000002785ff7998
[ 280.564887] R10: 000000c5beb58919 R11: ffff9abb6ad9b320 R12:
000000000005f140
[ 280.564891] R13: 0000000000000000 R14: ffffffffae0f3028 R15:
0000000000000000
[ 280.564894] FS: 00007f6de79ef700(0000) GS:ffff9ac127400000(0000)
knlGS:0000000000000000
[ 280.564898] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 280.564901] CR2: ffff9abb6ad9b326 CR3: 0000000264e12005 CR4:
00000000003606f0
[ 280.564905] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[ 280.564908] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
0000000000000400
Can you refactor your reproduction case to compile and work stand-alone?
I would need something I can through into my debugging environment to
retrigger such a crash.
Thanks,
Jan
--
Siemens AG, Corporate Technology, CT RDA IOT SES-DE
Corporate Competence Center Embedded Linux
