I've been running cachefilesd 0.10.1 since yesterday on this box and got this (attached) BUG traceback. System was unresponsive after that. Kernel is 2.6.33.3 with the suite of patches that David H put out the other day in the thread "Possible patch for CacheFiles: I/O Error: Unlink failed" (I actually applied the broken-out patches repackaged by Romain DEGEZ). Without the patches, cachefilesd dies after about 45 minutes with the "Unlink failed" error. With the patches, it's run all the way since yesterday afternoon before dying a few minutes ago with this error (that I've not seen before). The system is a Dell Poweredge 1950, running Debian Lenny 32-bit, with a fairly NFS-intensive workload. I don't have the exact disk usage from right before it died but a 'df' approx 30 mins earlier showed that it had a little shy of 9 gig used in the cache (with 58g free). I didn't do a df -i any time recently on it, so I don't know how many entries were in there but the vast majority is html and image files, so probably averaging in the 1-100k range, so quite a few entries. A few hours ago I happened to look at the /sys stats (but not since, so this is probably a few hours prior to BUG): # cat /proc/fs/fscache/stats FS-Cache statistics Cookies: idx=5436 dat=876190 spc=0 Objects: alc=796439 nal=0 avl=796402 ded=687802 ChkAux : non=0 ok=457637 upd=0 obs=572 Pages : mrk=3678901 unc=3250437 Acquire: n=881626 nul=0 noc=0 ok=881626 nbf=0 oom=0 Lookups: n=796793 neg=339151 pos=457288 crt=339151 tmo=354 Updates: n=0 nul=0 run=0 Relinqs: n=772550 nul=0 wcr=37 rtr=14494 AttrChg: n=0 ok=0 nbf=0 oom=0 run=0 Allocs : n=0 ok=0 wt=0 nbf=0 int=0 Allocs : ops=0 owt=0 abt=0 Retrvls: n=1008965 ok=541779 wt=229502 nod=376000 nbf=91186 int=0 oom=0 Retrvls: ops=917779 owt=232622 abt=0 Stores : n=1547630 ok=1547630 agn=0 nbf=0 oom=0 Stores : ops=387729 run=1935352 pgs=1547623 rxd=1547630 olm=0 VmScan : nos=3218178 gon=0 bsy=4 can=7 Ops : pend=232917 run=1305508 enq=4102804 can=0 rej=0 Ops : dfr=903 rel=1305508 gc=903 CacheOp: alo=0 luo=0 luc=0 gro=0 CacheOp: upo=0 dro=0 pto=0 atc=0 syn=0 CacheOp: rap=0 ras=0 alp=0 als=0 wrp=0 ucp=0 dsp=0 # cat /proc/fs/cachefiles/histogram JIFS SECS LOOKUPS MKDIRS CREATES ===== ===== ========= ========= ========= 0 0.000 1694602 7529 336885 1 0.010 4126 50 1758 2 0.020 201 4 139 3 0.030 46 1 42 4 0.040 21 1 26 5 0.050 22 0 21 6 0.060 13 0 24 7 0.070 4 0 15 8 0.080 14 0 21 9 0.090 11 0 16 10 0.100 8 0 14 11 0.110 7 0 13 12 0.120 6 0 13 13 0.130 13 0 8 14 0.140 10 1 16 15 0.150 6 1 9 16 0.160 5 0 7 17 0.170 3 2 12 18 0.180 3 0 8 19 0.190 3 0 5 20 0.200 4 0 9 21 0.210 5 0 3 22 0.220 3 0 11 23 0.230 0 0 6 24 0.240 1 0 7 25 0.250 1 0 9 26 0.260 4 0 7 27 0.270 1 0 4 28 0.280 1 0 6 29 0.290 4 0 1 30 0.300 1 0 7 31 0.310 1 0 5 32 0.320 2 0 5 33 0.330 2 0 3 34 0.340 1 1 2 35 0.350 0 0 6 36 0.360 0 0 1 37 0.370 0 1 4 38 0.380 0 0 6 39 0.390 0 0 1 40 0.400 0 0 5 41 0.410 2 0 4 42 0.420 0 0 4 43 0.430 0 0 5 44 0.440 1 0 4 45 0.450 1 0 1 46 0.460 1 0 1 47 0.470 0 0 2 48 0.480 0 0 2 49 0.490 0 0 2 51 0.510 0 0 3 52 0.520 1 0 3 53 0.530 0 0 3 54 0.540 0 0 2 55 0.550 0 0 1 56 0.560 0 0 2 57 0.570 0 0 1 58 0.580 0 0 2 59 0.590 1 0 2 60 0.600 0 0 2 61 0.610 0 0 1 62 0.620 1 0 1 66 0.660 0 0 1 69 0.690 0 0 1 71 0.710 0 1 0 72 0.720 0 0 1 73 0.730 0 0 1 74 0.740 0 0 1 76 0.760 0 0 2 78 0.780 0 0 1 81 0.810 0 0 2 82 0.820 0 0 2 83 0.830 0 0 1 89 0.890 0 0 1 99 0.990 0 0 6 I'll be happy to try anything out, either patch-wise or research-wise. thx
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