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The following reply was made to PR kern/51275; it has been noted by GNATS.
Subject: Re: kern/51275
Date: Wed, 3 Aug 2016 17:42:41 +0000
Note that this isn't "LFS wedges", but "LFS wedges forever, and no
writes will ever succeed"
sync is irrelevant here.
I've noted that the cleaner died when doing the big write (using crash
and then ps/l |grep lfs, I didn't see the cleaner)
Cleaner trace wedges:
crash> bt/a fffffe8132d42b60
trace: pid 167 lid 1 at 0xfffffe80412888a0
sleepq_block() at sleepq_block+0x97
mtsleep() at mtsleep+0x102
lfs_reserveavail.isra.2() at lfs_reserveavail.isra.2+0x173
lfs_reserve() at lfs_reserve+0x140
lfs_truncate() at lfs_truncate+0x162
ulfs_inactive() at ulfs_inactive+0x11b
VOP_INACTIVE() at VOP_INACTIVE+0x55
vrelel() at vrelel+0x259
lfs_bmapv() at lfs_bmapv+0x2a8
lfs_fcntl() at lfs_fcntl+0xbcd
VOP_FCNTL() at VOP_FCNTL+0x59
sys_fcntl() at sys_fcntl+0x375
syscall() at syscall+0x15b
--- syscall (number 92) ---
All things hang there.
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