Date: Mon, 18 Oct 2004 20:02:30 +0300 From: Andriy Gapon <avg@icyb.net.ua> To: freebsd-current@freebsd.org, freebsd-emulation@freebsd.org Subject: process stuck in DE state Message-ID: <4173F726.5060408@icyb.net.ua>
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The hanging application runs in linux emulation. $ ps ax -O wchan | fgrep 970 970 fdlhol p4 DE 0:00,09 strmqcsv WAS_node_si_server_sb4_si $ fstat -p 970 USER CMD PID FD MOUNT INUM MODE SZ|DV R/W mqm strmqcsv 970 root / 2 drwxr-xr-x 512 r mqm strmqcsv 970 wd /usr 1555303 drwxrwxr-x 512 r mqm strmqcsv 970 text /usr 1536473 -r-sr-s--- 7630 r mqm strmqcsv 970 0 /dev 10 crw-rw-rw- null r mqm strmqcsv 970 1 /dev 10 crw-rw-rw- null rw mqm strmqcsv 970 2 /dev 10 crw-rw-rw- null rw mqm strmqcsv 970 3* pipe c7076408 <-> c7af0158 0 rw mqm strmqcsv 970 4* pipe c7af0158 <-> c7076408 0 rw ipcs -a | fgrep 970 m 65561 286838271 --rw-rw-rw- mqm mqm mqm mqm 1 8192 970 974 18:47:11 18:47:11 18:47:11 This happens from time to time, I can not reproduce this at will, so it looks like a concurrency issue. As I understand this happens in kernel fdfree(). I use 5.2.1-release, so maybe it was fixed later, but I can not install -current (or 5.3 beta) at the moment. Is there anything I can do to avoid this problem and help debug it? -- Andriy Gapon
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